Walter M Harris

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Scholarly Contributions

Chapters

• Harris, W., Stern, S. A., & Villanueva, G. L. (2025). Centaur Missions. In Centaurs(pp 16-1).
• Lisse, C., Bar-Nun, A., Laufer, D., Belton, M., Harris, W., Hsieh, H., & Jewitt, D. (2013). Cometary Ices. In The Science of Solar System Ices, Astrophysics and Space Science Library.
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  Page: 455; Volume: 356; ISBN 978-1-4614-3075-9, Springer Science+Business Media New York

Journals/Publications

• Bhattacharyya, D., Thiemann, E. M., Machol, J., Cucho-Padin, G., Chatterjee, S., Harris, W., & Mierkiewicz, E. (2025). The hydrogen Lyman α line shape in the exospheres of terrestrial objects in the solar system. Frontiers in Astronomy and Space Sciences, 12(Issue). doi:10.3389/fspas.2025.1589784
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  The exospheres of all objects are mostly made of atomic hydrogen. Because the Sun is bright in Lyman α, the properties of the H atoms in the exospheres of certain terrestrial solar system objects can be studied by analyzing the resonantly scattered solar Lyman α emission by these exospheric H atoms. This emission is optically thick in the exospheres of all planets in our solar system except Mercury. This makes it complicated to derive the true characteristics (number density distribution, energy distribution) of the H atoms present in these exospheres. While radiative transfer (RT) models have been used extensively to derive the characteristics of exospheric H atoms by modeling the line-integrated Lyman α intensity measured by spacecrafts via remote sensing, the models often fail to resolve discrepancies between the observed emission intensity and the simulated value. This is because of the various assumptions that are made in the RT models about the inherent characteristics of the H atoms and the corresponding Lyman α lineshape. Our knowledge about the characteristics of the H atoms can be significantly improved by understanding what the true lineshape of the H Lyman α line may be for various conditions. This can then be used to resolve the discrepancies between the modeled and the observed intensities for planetary exospheres. Here we present a detailed study on the shape of the exospheric Lyman α emission line for various conditions like change in altitude, temperature, non-isothermality, asymmetry, and presence of non-thermal atoms. These detailed line profiles are being used to determine H density distribution in Earth’s exosphere from analysis of absorption of the solar Lyman α line by geocoronal H as measured by remote sensing satellites. This theoretical analysis also highlights the advantages of obtaining highly resolved H Lyman α emission line measurements from the exospheres of certain terrestrial objects in our solar system.
• Freitas, A., Nair, V., Sollenberger, L., Harris, W., & Rodriguez, A. (2025). Application and residual effects of poultry litter biochar on cropping system yields. Agronomy Journal, 117(1), e21745.
• Swanson}, C., Kumar, S., Dudt, D., Flom, E., Kalb, W., Kruger, T., Martin, M., Olatunji, J., Pasmann, S., Tang, L., Linden, J., Wasserman, J., Avida, M., Basurto, A., Dickerson, M., Boer, N., Donovan, M., Doudna, C. A., Fort, D., , Harris, W., et al. (2025). Overview of the Helios Design: A Practical Planar Coil Stellarator Fusion Power Plant. arXiv e-prints, arXiv:2512.08027.
• Kareta, T., Noonan, J. W., Harris, W. M., & Springmann, A. (2023). Ice, Ice, Maybe? Investigating 46P/Wirtanen's Inner Coma for Icy Grains. \psj, 4(5), 85.
• Noonan, J. W., Harris, W. M., Bromley, S., Farnocchia, D., Li, J., Mandt, K. E., Parker, J. W., Venkataramani, K., & Bodewits, D. (2023). Erratum: ``FUV Observations of the Inner Coma of 46P/Wirtanen'' (2021, PSJ, 2, 8). \psj, 4(2), 40.
• Noonan, J. W., Parker, J. W., Harris, W. M., Bromley, S., Saki, M., Moulane, Y., Farnocchia, D., Micheli, M., Li, J., Mandt, K. E., Venkataramani, K., & Bodewits, D. (2023). The Evolution of Activity and Chemical Composition in Rosetta's Comet Targets across Multiple Apparitions: Complications for CS$_2$ as the CS Parent in Comet Nuclei. \psj, 4(4), 73.
• Dello, R. N., Vervack, R. J., Kawakita, H., Bonev, B. P., DiSanti, M. A., Gibb, E. L., McKay, A. J., Cochran, A. L., Weaver, H. A., Biver, N., Crovisier, J., Bockel{\'ee-Morvan}, D., Kobayashi, H., Harris, W. M., Roth, N. X., Saki, M., & Khan, Y. (2022). Volatile Abundances, Extended Coma Sources, and Nucleus Ice Associations in Comet C/2014 Q2 (Lovejoy). \psj, 3(1), 6.
• Kareta, T., Reddy, V., Sanchez, J. A., & Harris, W. M. (2022). Near-infrared Spectroscopy of the Nucleus of Low-activity Comet P/2016 BA$_14$ during Its 2016 Close Approach. \psj, 3(5), 105.
• Lejoly, C., Harris, W., Samarasinha, N., Mueller, B., Howell, E., Bodnarik, J., Springmann, A., Kareta, T., Sharkey, B., Noonan, J., Bedin, L., Bosch, J. -., Brosio, A., Bryssinck, E., Vanssay, J. -., Hambsch, F. -., Ivanova, O., Krushinsky, V., Lin, Z. -., , Manzini, F., et al. (2022). Radial Distribution of the Dust Comae of Comets 45P/Honda-Mrkos-Pajdus??\'akov\'a and 46P/Wirtanen. \psj, 3(1), 17.
• Lisse, C., Combi, M., Farnham, T., Russo, N. D., Sandford, S., Cheng, A., Fink, U., Harris, W., McMahon, J., Scheeres, D., Weaver, H., & Leary, J. (2022). ``Operating spacecraft around comets: Evaluation of the near-nucleus environment''. Acta Astronautica, 195, 365-378.
• Lisse, C., Steckloff, J., Prialnik, D., Womack, M., Harrington Pinto, O., Sarid, G., Fernandez, Y., Schambeau, C., Kareta, T., Samarasinha, N., Harris, W., Volk, K., Woodney, L., Cruikshank, D., & Sandford, S. (2022). 29P/Schwassmann-Wachmann 1: A Rosetta Stone for Amorphous Water Ice and CO ??? CO$_2$ Conversion in Centaurs and Comets?. \psj, 3(11), 251.
• Springmann, A., Harris, W. M., Ryan, E. L., Lejoly, C., Howell, E. S., Mueller, B. E., Samarasinha, N. H., Woodney, L. M., & Steckloff, J. K. (2022). Repeating Gas Ejection Events from Comet 45P/Honda-Mrkos-Pajdu\v{s}\'akov\'a. \psj, 3(1), 15.
• Fink, U., Harris, W., Doose, L., Volk, K., Woodney, L., Farnham, T., & Womack, M. (2021). Dust Outburst Dynamics and Hazard Assessment for Close Spacecraft-Comet Encounters. \psj, 2(4), 154.
• Kareta, T., Andrews, J., Noonan, J., Harris, W., Smith, N., O'Brien, P., Sharkey, B., Reddy, V., Springmann, A., Lejoly, C., Volk, K., Conrad, A., & Veillet, C. (2021). VizieR Online Data Catalog: Opt. spectroscopic investigations of 2I/Borisov (Kareta+, 2020). VizieR Online Data Catalog, J/ApJ/889/L38.
• Kareta, T., Harris, W. M., & Reddy, V. (2021). Probable Detection of Water Ice in the Coma of the Inbound Long-period Comet C/2017 K2 (PanSTARRS). Research Notes of the American Astronomical Society, 5(6), 153.
• Kareta, T., Hergenrother, C., Reddy, V., & Harris, W. M. (2021). Surfaces of (Nearly) Dormant Comets and the Recent History of the Quadrantid Meteor Shower. \psj, 2(1), 31.
• Kareta, T., Reddy, V., Pearson, N., Sanchez, J. A., & Harris, W. M. (2021). Investigating the Relationship between (3200) Phaethon and (155140) 2005 UD through Telescopic and Laboratory Studies. \psj, 2(5), 190.
• Kareta, T., Woodney, L. M., Schambeau, C., Fernandez, Y., Pinto, O. H., Wierzchos, K., Womack, M., Bus, S., Steckloff, J., Sarid, G., Volk, K., Harris, W. M., & Reddy, V. (2021). Contemporaneous Multiwavelength and Precovery Observations of the Active Centaur P/2019 LD2 (ATLAS). \psj, 2(2), 48.
• Lejoly, C., Harris, W., Samarasinha, N., Mueller, B., Howell, E., Bodnarik, J., Springmann, A., Kareta, T., Sharkey, B., Noonan, J., Bedin, L., Bosch, J. -., Brosio, A., Bryssinck, E., Vanssay, J. -., Hambsch, F. -., Ivanova, O., Krushinsky, V., Lin, Z. -., , Manzini, F., et al. (2021). Radial Distribution of the Dust Comae of Comets 45P/Honda-Mrkos-Pajduus\'akov\'a and 46P/Wirtanen. arXiv e-prints, arXiv:2112.10808.
• Noonan, J. W., Harris, W. M., Bromley, S., Farnocchia, D., Li, J., Mandt, K. E., Parker, J. W., Venkataramani, K., & Bodewits, D. (2021). FUV Observations of the Inner Coma of 46P/Wirtanen. \psj, 2(1), 8.
• Sharkey, B. N., Reddy, V., Sanchez, J. A., Izawa, M. R., & Harris, W. M. (2021). Complex Water-ice Mixtures on NII Nereid: Constraints from NIR Reflectance. \psj, 2(4), 143.
• Springmann, A., Harris, W. M., Ryan, E. L., Lejoly, C., Howell, E. S., Mueller, B. E., Samarasinha, N. H., Woodney, L. M., & Steckloff, J. K. (2021). Repeating gas ejection events from comet 45P/Honda-Mrkos-Pajdu\v{s}\'akov\'a. arXiv e-prints, arXiv:2107.10351.
• Bodewits, D., Noonan, J., Feldman, P., Bannister, M., Farnocchia, D., Harris, W., Li, J. -., Mandt, K., Parker, J. W., & Xing, Z. -. (2020). The carbon monoxide-rich interstellar comet 2I/Borisov. Nature Astronomy, 4, 867-871.
• Hosseini, S., & Harris, W. (2020). Khayyam, a tunable, cyclical spatial heterodyne spectrometer on Mt. Hamilton. Journal of Astronomical Telescopes, Instruments, and Systems, 6, 015005.
• Kareta, T., Andrews, J., Noonan, J. W., Harris, W. M., Smith, N., O'Brien, P., Sharkey, B. N., Reddy, V., Springmann, A., Lejoly, C., Volk, K., Conrad, A., & Veillet, C. (2020). Carbon Chain Depletion of 2I/Borisov. \apjl, 889(2), L38.
• Kareta, T., Volk, K., Noonan, J. W., Sharkey, B. N., Harris, W. M., & Reddy, V. (2020). An Extremely Temporary Co-orbital: The Dynamical State of Active Centaur 2019 LD2. Research Notes of the American Astronomical Society, 4(5), 74.
• Reddy, K., Vardanyan, L., Hu, J., Villapando, O., Bhomia, R. K., Smith, T., Harris, W., & Newman, S. (2020). Soil phosphorus forms and storage in stormwater treatment areas of the Everglades: Influence of vegetation and nutrient loading. Science of the Total Environment, 725, 138442.
• Schambeau, C., Fernandez, Y., Belton, R., Womack, M., Micheli, M., Woodney, L., Steckloff, J., Sarid, G., Kareta, T., Harris, W., & Volk, K. (2020). Cbet 4821 : 20200802 : Comet P/2019 LD2 (atlas). Central Bureau Electronic Telegrams, 4821, 1.
• Steckloff, J., Sarid, G., Volk, K., Kareta, T., Womack, M., Harris, W., Woodney, L., & Schambeau, C. (2020). P/2019 LD2 (ATLAS): An Active Centaur in Imminent Transition to the Jupiter Family. \apjl, 904(2), L20.
• Womack, M., Sarid, G., Harris, W., Wierzchos, K., & Woodney, L. (2020). Call for Observations of the Active Centaur 29P/Schwassmann-Wachmann. Minor Planet Bulletin, 47(4), 350-352.
• Woodney, L. M., Rivkin, A. S., Harris, W., Cohen, B. A., Sarid, G., Womack, M., Barnouin, O., Volk, K., Klima, R., Fernandez, Y. R., Steckloff, J. K., & Abell, P. A. (2020). Strength In Diversity: Small Bodies as the Most Important Objects in Planetary Sciences. arXiv e-prints, arXiv:2008.06411.
• Bauer, J., Milam, S., Bjoraker, G., Carey, S., Daou, D., Fletcher, L., Harris, W., Hartogh, P., Hartzell, C., Hendrix, A., Nugent, C., Rivkin, A., Swindle, T., Thomas, C., Tiscareno, M. S., Villanueva, G., & Wolk, S. (2019). Planetary Science with Astrophysical Assets: Defining the Core Capabilities of Platforms. \baas, 51(3), 477.
• Clarke, J., Bhattacharyya, D., Harris, W., Hendrix, A., & Mayyasi, M. (2019). Solar System Science with a Space-based UV Telescope. \baas, 51(3), 77.
• Juanola-Parramon, R., Hammel, H. B., Arney, G., Roberge, A., Villanueva, G., Harris, W., Schmidt, B., & Singer, K. (2019). Solar System Science with Space Telescopes. \baas, 51(3), 18.
• Kareta, T., Sharkey, B., Noonan, J., Volk, K., Reddy, V., Harris, W., & Miles, R. (2019). Physical Characterization of the 2017 December Outburst of the Centaur 174P/Echeclus. \aj, 158(6), 255.
• Noonan, J. W., Reddy, V., Harris, W. M., Bottke, W. F., Sanchez, J. A., Furfaro, R., Brown, Z., Fernandes, R., Kareta, T., Lejoly, C., Teja, N. R., Niazi, H. K., Slick, L. R., Schatz, L., Sharkey, B. N., Springmann, A., Angle, G., Bailey, L., Acuna, D. D., , Lewin, C., et al. (2019). Search for the H Chondrite Parent Body among the Three Largest S-type Asteroids: (3) Juno, (7) Iris, and (25) Phocaea. \aj, 158(5), 213.
• Reddy, V., Kelley, M. S., Farnocchia, D., Ryan, W. H., Thomas, C. A., Benner, L. A., Dotson, J., Micheli, M., Brucker, M. J., Bus, S. J., Brozovic, M., Wheeler, L., Abbasi, V., Bauer, J. M., Bonsall, A., Brown, Z. L., Busch, M. W., Chodas, P., Choi, Y., , Erasmus, N., et al. (2019). Near-Earth asteroid 2012 TC4 observing campaign: Results from a global planetary defense exercise. \icarus, 326, 133-150.
• Sarid, G., Volk, K., Steckloff, J., Harris, W., Womack, M., & Woodney, L. (2019). 29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-family Comets. \apjl, 883(1), L25.
• McKay, A., Cochran, A., DiSanti, M., Dello Russo, N., Weaver, H., Vervack, R., Harris, W., & Kawakita, H. (2018). Evolution of H$_2$O production in comet C/2012 S1 (ISON) as inferred from forbidden oxygen and OH emission. \icarus, 309, 1-12.
• Scowen, P., Tripp, T., Beasley, M., Ardila, D., Andersson, B., Ma{'{i}z, A. J., Barstow, M., Bianchi, L., Calzetti, D., Clampin, M., Evans, C., France, K., Garc{'{i}a, G. M., Castro, A., Harris, W., Hartigan, P., Howk, J., Hutchings, J., Larruquert, J., , Lillie, C., et al. (2017). "Finding the UV-Visible Path Forward: Proceedings of the Community Workshop to Plan the Future of UV/Visible Space Astrophysics". pasp, 129(7), 076001.
• {Dello Russo}, N., {Vervack}, R., {Kawakita}, H., {Cochran}, A., {McKay}, A., {Harris}, W., {Weaver}, H., {Lisse}, C., {DiSanti}, M., {Kobayashi}, H., {Biver}, N., {Bockel{'e}e-Morvan}, D., {Crovisier}, J., {Opitom}, C., , E. (2016). The compositional evolution of C/2012 S1 (ISON) from ground-based high-resolution infrared spectroscopy as part of a worldwide observing campaign. icarus, 266, 152-172.
• Corliss, J., Harris, W., Mierkiewicz, E., & Roesler, F. (2015). Development and field tests of a narrowband all-reflective spatial heterodyne spectrometer. Applied Optics, 54, 8835.
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  This paper is the peer reviewed summary of the performance and validation of a heterodyne spectrometer developed under funding from the NASA PIDDP program. The first author was my student and post-doc. All of the work presented was derived from funding where I was PI.
• Mandt, K., Mousis, O., Marty, B., Cavali'e, T., Harris, W., Hartogh, P., & Willacy, K. (2015). Constraints from Comets on the Formation and Volatile Acquisition of the Planets and Satellites. Space Science Reviews, 197, 297-342.
• McKay, A. J., Cochran, A. L., DiSanti, M. A., Villanueva, G., Russo, N. D., Vervack, R. J., Morgenthaler, J. P., Harris, W. M., & Chanover, N. J. (2015). Evolution of H$_2$O, CO, and CO$_2$ production in Comet C/2009 P1 Garradd during the 2011-2012 apparition. icarus, 250, 504-515.
• {Dalcanton}, J., {Seager}, S., {Aigrain}, S., {Battel}, S., {Brandt}, N., {Conroy}, C., {Feinberg}, L., {Gezari}, S., {Guyon}, O., {Harris}, W., {Hirata}, C., {Mather}, J., {Postman}, M., {Redding}, D., {Schiminovich}, D., {Stahl}, H., , J. (2015). From Cosmic Birth to Living Earths: The Future of UVOIR Space Astronomy. arXiv:1507.04779 [astro-ph.IM].
• Dello Russo, N., Vervack, R. J., Kawakita, H., Kobayashi, H., Weaver, H. A., Harris, W. M., Cochran, A., Biver, N., Bockel'ee-Morvan, D., & Crovisier, J. (2014). The volatile composition of 81P/Wild 2 from ground-based high-resolution infrared spectroscopy. icarus, 238, 125-136.
• Kawakita, H., Dello Russo, N., Vervack, R., Kobayashi, H., DiSanti, M. A., Opitom, C., Jehin, E., Weaver, H. A., Cochran, A. L., Harris, W. M., Bockel'ee-Morvan, D., Biver, N., Crovisier, J., McKay, A. J., Manfroid, J., & Gillon, M. (2014). Extremely Organic-rich Coma of Comet C/2010 G2 (Hill) during its Outburst in 2012. apj, 788, 110.
• McKay, A., Chanover, M., DiSanti, J., Harris, W. M., Morgenthaler, A., Cochran, W., & Dello-Russo, N. (2014). Rotational variation of daughter species production rates in Comet 103P/Hartley: Implications for the progeny of daughter species and the degree of chemical heterogeneity. Icarus, 231, 193-205.
• Vincent, F. E., Katushkina, O., Ben-Jaffel, L., Harris, W. M., Izmodenov, V., Qu'emerais, E., Koutroumpa, D., & Clarke, J. (2014). Observations of the Interplanetary Hydrogen during Solar Cycles 23 and 24. What can We Deduce about the Local Interstellar Medium?. apjl, 788, L25.
• Dello, R. N., Vervack, R., Weaver, H., Lisse, C., Kawakita, H., Kobayashi, H., Cochran, A., Harris, W., Bockelée-Morvan, D., Biver, N., Crovisier, J., & McKay, A. (2013). A high-resolution infrared spectral survey of 103P/Hartley 2 on the night of the EPOXI closest approach. Icarus, 222(2), 707-722.
• Kawakita, H., Kobayashi, H., Dello, R. N., Vervack, R., Hashimoto, M., Weaver, H., Lisse, C., Cochran, A., Harris, W., Bockelée-Morvan, D., Biver, N., Crovisier, J., & McKay, A. (2013). Parent volatiles in Comet 103P/Hartley 2 observed by Keck II with NIRSPEC during the 2010 apparition. Icarus, 222(2), 723-733.
• McKay, A., Chanover, N., Morgenthaler, J., Cochran, A., Harris, W., & Russo, N. (2013). Observations of the forbidden oxygen lines in DIXI target Comet 103P/Hartley. Icarus, 222(2), 684-690.
• McKay, A., Chanover, N., Morgenthaler, J., Cochran, A., Harris, W., & Russo, N. (2012). Forbidden oxygen lines in Comets C/2006 W3 Christensen and C/2007 Q3 Siding Spring at large heliocentric distance: Implications for the sublimation of volatile ices. Icarus, 220(1), 277-285.
• {Meech}, K., {A'Hearn}, M., {Adams}, J., {Bacci}, P., {Bai}, J., {Barrera}, L., {Battelino}, M., {Bauer}, J., {Becklin}, E., {Bhatt}, B., {Biver}, N., {Bockel{\'e}e-Morvan}, D., {Bodewits}, D., {B{\"o}hnhardt}, H., {Boissier}, J., {Bonev}, B., {Borghini}, W., {Brucato}, J., {Bryssinck}, E., , {Buie}, M., et al. (2011). EPOXI: Comet 103P/Hartley 2 Observations from a Worldwide Campaign. ApJ Letters, 734, L1.

Proceedings Publications

• Harris, W. M., Corliss, J. B., Mierkiewicz, E., Bhattacharyya, D., & Cucho-Padin, G. (2025). HELIX: EXPLORING THE DETAILED PROPERTIES OF NEUTRAL HYDROGEN THROUGHOUT THE SOLAR SYSTEM. In 2024 Small Satellites Systems and Services Symposium, 4S 2024, 13546.
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  Atomic hydrogen is a key component of the Sun-planet interaction. As the lightest element, it becomes dominant in terrestrial atmospheres at altitudes extending from the thermosphere-ionosphere region into the exosphere and interplanetary medium. Spectro-imaging of scattered Lyman series emission is useful for mapping the spatial distribution of hydrogen over the full range of spatial scales in the solar system and provides the basis for theoretical investigation of its radiative and energetic properties. However, the spectral resolving power of the instruments used in these studies is insufficient for extracting structure in emission lineshapes. Absent this information, it is difficult to fully disentangle the effects of impact, temperature, multiple scattering, non-thermal processes, and background contamination from the observed brightness. Recent advances in far ultraviolet (FUV) spatial heterodyne spectroscopy (SHS) offer an instrumental solution providing high spectral resolving power in a compact, wide field format. The Hydrogen Emission Line Interferometric eXplorer (HELIX) is a pathfinder SHS design intended for study of hydrogen properties in terrestrial planet exospheres and the interplanetary medium. We describe here the scientific objectives and physical characteristics of a SmallSat-HELIX mission concept to study geocoronal hydrogen from observations of H Ly-a.
• Melso, N., Khan, A. R., Hoadley, K., Siegmund, O., Martin, A., Hamara, D., Verts, B., Tanquary, H., Vargas, C., Chung, H., McMahon, T., Hamden, E., Yescas, N., Garcia, E., Truong, D., Keppler, M., Kim, J., Agarwal, S., Augustin, R., , Behroozi, P., et al. (2025, sep). Characterization and testing of a cross-delay line microchannel plate detector for the Aspera SmallSat mission. In UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIV, 13625.
• Chung, H., Vargas, C. J., Hamden, E., McMahon, T., Tanquary, H., Khan, A. R., Coronado, F., Verts, B., Melso, N., Choi, H., Agarwal, S., Corliss, J., Hoadley, K., Keppler, M., Hamara, D., Garcia, E., Truong, D., Yescas, N., Augustin, R., , Batkis, M., et al. (2024, aug). Aspera payload design overview: UV SmallSat mission to detect and map warm-hot halo gas around the nearby galaxies. In Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 13093.
• Harris, W., Corliss, J., Maciel, R., Mierkiewicz, E., Bhattacharyya, D., & Cucho-Padin, G. (2024, aug). Investigation of the energetic and radiative transfer properties of exospheric hydrogen with the Hydrogen Emission Line Interferometric eXplorer (HELIX). In Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 13093.
• Khan, A. R., Hamden, E., Chung, H., Choi, H., Kim, D., Melso, N., Hoadley, K., Vargas, C. J., Truong, D., Garcia, E., Verts, B., Coronado, F., Noenickx, J., Corliss, J., Tanquary, H., McMahon, T., Hamara, D., Agarwal, S., Augustin, R., , Behroozi, P., et al. (2024, aug). Optical alignment of contamination-sensitive far-ultraviolet spectrographs for Aspera SmallSat mission. In Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 13093.
• Li, J. S., Su, R., Uppnor, S., Chung, H., Corliss, J., Agarwal, S., Khan, A. R., Garcia, E., Yescas, N., Truong, D., Vargas, C., Hamden, E., Augustin, R., Behroozi, P., Burchett, J., Choi, H., Corlies, L., Davis, G., Dettmar, R., , Douglas, E., et al. (2024, aug). Ultraviolet reflective grating performance verification test setup and simulations for the Aspera SmallSat mission. In Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 13093.
• Lisse, C., Steckloff, J., Prialnik, D., Womack, M., Harrington, P. O., Sarid, G., Fernandez, Y., Kareta, T., Schambeau, C., Samarasinha, N., Harris, W., Volk, K., Woodney, L., Cruikshank, D., Sandford, S., & Bauer, J. (2023, oct). 29P/Schwassmann-Wachmann: A Rosetta Stone for Amorphous Water Ice and CO$_2$ -> CO Conversion in Centaurs and Comets?. In AAS/Division for Planetary Sciences Meeting Abstracts, 55.
• Lisse, C., Steckloff, J., Prialnik, D., Womack, M., Harrington-Pinto, O. .., Sarid, G., Fernandez, Y., Kareta, T., Schambeau, C., Samarasinha, N., Harris, W., Volk, K., Woodney, L., Cruikshank, D., & Sandford, S. (2023, mar). 29P/Schwassmann-Wachmann 1: An Excellent Nearby Laboratory for Studying Amorphous -> Crystalline Water Ice Conversion in Centaurs and Comets. In LPI Contributions, 2806.
• Harris, W., & Corliss, J. (2022, dec). Reflective Spatial Heterodyne Spectrometers (RSHS): A high resolving power broadband spectral sensor for the EUV-NIR. In AAS/Division for Planetary Sciences Meeting Abstracts, 54.
• Dello, R. N., Vervack, R., Kawakita, H., Bonev, B., Di, S. M., Gibb, E., McKay, A., Cochran, A., Weaver, H., Biver, N., Crovisier, J., Bockelee-Morvan, D., Kobayashi, H., Harris, W., Roth, N., Saki, M., & Khan, Y. (2021, oct). Volatile abundances, coma sources, and ice associations in the nucleus of comet C/2014 Q2 (Lovejoy). In AAS/Division for Planetary Sciences Meeting Abstracts, 53.
• Harris, W., Fernandez, Y. R., Sarid, G., Steckloff, J. K., Volk, K., Womack, M., & Woodney, L. M. (2021, may). Active Primordial Bodies: Exploration of the primordial composition of ice-rich planetesimals and early-stage evolution in the outer solar system. In Bulletin of the American Astronomical Society, 53.
• Juanola-Parramon, R., Hammel, H. B., Arney, G., Roberge, A., Villanueva, G., Harris, W., Schmidt, B., & Singer, K. (2021, may). Solar System Science with Space Telescopes. In Bulletin of the American Astronomical Society, 53.
• Kareta, T., Reddy, V., & Harris, W. (2021, oct). Telescopic and Laboratory Investigations of The Surfaces of Active and Cometary Near Earth Objects. In AAS/Division for Planetary Sciences Meeting Abstracts, 53.
• Kawakita, H., Dello, R. N., Vervack, R., Di, S. M., Bonev, B., Gibb, E., McKay, A., Cochran, A., Weaver, H., Harris, W., Biver, N., Bockelee-Morvan, D., Crovisier, J., Roth, N., Saki, M., Khan, Y., Kobayashi, H., Shinnaka, Y., & Boice, D. (2021, oct). Spatial profiles of ammonia and NH$_2$ in comet C/2014 Q2 (Lovejoy): Ammonium salts as possible parents of ammonia in cometary comae. In AAS/Division for Planetary Sciences Meeting Abstracts, 53.
• Keane, J., Ahern, A. A., Bagenal, F., Barr, M., Basu, K. o., Becerra, P., Bertrand, T., Beyer, R. A., Bierson, C. J., Bland, M. T., Breuer, D., Davies, A. G., Kleer, K., Pater, I., DellaGiustina, D. N., Denk, T., Echevarria, A., Elder, C. M., Feaga, L. M., , Grava, C., et al. (2021, may). Recommendations for Addressing Priority Io Science in the Next Decade. In Bulletin of the American Astronomical Society, 53.
• Mainzer, A., Abell, P., Bannister, M. T., Barbee, B., Barnes, J., Bell, I., Benner, L., Betts, B., Bose, M., Bottke, W., Britt, D., Brozovi{\'c}, M., Bruckner, M., Busch, M. W., Carey, S., Castillo-Rogez, J. .., Chesley, J., Christensen, E., Chodas, P., , Cotto-Figueroa, D. .., et al. (2021, may). The Future of Planetary Defense in the Era of Advanced Surveys. In Bulletin of the American Astronomical Society, 53.
• Roberge, A., Fischer, D., Peterson, B., Bean, J., Calzetti, D., Dawson, R., Dressing, C., Feinberg, L., France, K., Guyon, O., Harris, W., Marley, M., Meadows, V., Moustakas, L., O'Meara, J., Pascucci, I., Postman, M., Pueyo, L., Redding, D., , Rigby, J., et al. (2021, may). The Large UV / Optical / Infrared Surveyor (LUVOIR) Telling the Story of Life in the Universe. In Bulletin of the American Astronomical Society, 53.
• Sharkey, B., Reddy, V., Sanchez, J., Harris, W., & Izawa, M. (2021, oct). Complex Water Ice Mixtures on NII Nereid: Constraints from NIR Reflectance. In AAS/Division for Planetary Sciences Meeting Abstracts, 53.
• Woodney, L., Rivkin, A. S., Harris, W., Cohen, B. A., Sarid, G., Womack, M., Barnouin, O., Volk, K., Ernst, C., Klima, R., Fernandez, Y. R., Steckloff, J. K., & Abell, P. A. (2021, may). Strength In Diversity: Small Bodies as the Most Important Objects in Planetary Sciences. In Bulletin of the American Astronomical Society, 53.
• Bodewits, D., Noonan, J., Feldman, P., Bannister, M., Farnocchia, D., Harris, W., Li, J., Parker, J., & Xing, Z. (2020, oct). Composition and evolution of interstellar comet 2I/Borisov. In AAS/Division for Planetary Sciences Meeting Abstracts, 52.
• Harris, W. M. (2020, dec). Development of high technology readiness level, all-reflective spatial heterodyne spectrometers for high resolving power/etendue remote sensing of extended emissions in the NUV to EUV. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 11444.
• Kareta, T., Hergenrother, C., Reddy, V., & Harris, W. (2020, oct). Surfaces of (Nearly) Dormant Comets and the Recent History of the Quadrantids. In AAS/Division for Planetary Sciences Meeting Abstracts, 52.
• Noonan, J., Bodewits, D., Harris, W., Mandt, K., Li, J., Parker, J., Venkataramani, K., & Farnocchia, D. (2020, oct). FUV Observations of 46P/Wirtanen's Inner Coma. In AAS/Division for Planetary Sciences Meeting Abstracts, 52.
• Sarid, G., Steckloff, J., Volk, K., Kareta, T., Womack, M., Harris, W., Woodney, L., & Schambeau, C. (2020, oct). P/2019 LD2 in Transition: Dynamical and Thermal Context for an Evolving Active Centaur. In AAS/Division for Planetary Sciences Meeting Abstracts, 52.
• Springmann, A., Harris, W., Lejoly, C., Ryan, E., Howell, E., Mueller, B., Samarasinha, N., Woodney, L., & Steckloff, J. (2020, oct). A repeating CN jet feature from 45P/Honda-Mrkos-Pajdu\v{s}\'akov\'a. In AAS/Division for Planetary Sciences Meeting Abstracts, 52.
• Venkataramani, K., Bodewits, D., Xing, Z., Noonan, J., Bonev, B., Farnocchia, D., Harris, W., Li, J., Mandt, K., & Parker, J. (2020, oct). Source of water and emission processes in the coma of comet 46P/Wirtanen. In AAS/Division for Planetary Sciences Meeting Abstracts, 52.
• Villanueva}, G., Harris, W., Schmidt, B., Roberge, A., Juanola-Parramon, R. .., Arney, G., Protopapa, S., Parker, A., Bodewits, D., Rivkin, A., Science, L., & Team, {. D. (2020, jan). Revolutionizing Solar System Research with LUVOIR: unprecedented resolutions and sensitivities. In American Astronomical Society Meeting Abstracts \#235, 235.
• Womack, M., Sarid, G., Harris, W., Wierzchos, K., Woodney, L., & Schambeau, C. (2020, oct). Call for Observations of the Active Centaur 29P/Schwassmann-Wachmann. In AAS/Division for Planetary Sciences Meeting Abstracts, 52.
• Woodney, L., Kareta, T., Schambeau, C., Fernandez, Y., Womack, M., Harrington-Pinto, O. .., Bus, S., Steckloff, J., Sarid, G., Volk, K., & Harris, W. (2020, oct). Contemporaneous Multi-Wavelength Observations of the Active Centaur P/2019 LD2. In AAS/Division for Planetary Sciences Meeting Abstracts, 52.
• Bodewits, D., Christian, D., Kelley, M., Li, J. Y., Protopapa, S., Farnham, T., Kuntz, K., Koutroumpa, D., Carter, J., Farnocchia, D., Lister, T., Knight, M., Noonan, J., Harris, W., Parker, J., {Mand, t. K., & Bell, C. (2019, Sep). Characterizing the physical and chemical behaviour of comet 46P/Wirtanen. In EPSC-DPS Joint Meeting 2019, 2019.
• Harris, W., Woodney, L., & Villanueva, G. (2019, Sep). Chimera: A Mission of Discovery to the First Centaur. In EPSC-DPS Joint Meeting 2019, 2019.
• Lejoly, C., Harris, W., Samarasinha, N., Mueller, B., Howell, E. S., & Springmann, A. (2019, Sep). Radial Dust Profiles of Three Close Approach Jupiter Family Comets. In EPSC-DPS Joint Meeting 2019, 2019.
• Morgenthaler, J., Bodewits, D., Vervack, R., & Harris, W. (2019, Sep). PDS archive of wide-field UV-vis observations of comets: What products do you wish to see?. In EPSC-DPS Joint Meeting 2019, 2019.
• Noonan, J., Bodewits, D., Harris, W., Parker, J., Mandt, K., Li, J. Y., & Farnocchia, D. (2019, Sep). Hubble Space Telescope Cosmic Origins Spectrograph Observations of 46P/Wirtanen During Close Approach. In EPSC-DPS Joint Meeting 2019, 2019.
• Noonan, J., Reddy, V., Harris, W., Bottke, W., Sanchez, J., Furfaro, R., Brown, Z., Fernandes, R., Kareta, T., Lejoly, C., Nallapu, R., Niazi, H., Slick, L., Schatz, L., Sharkey, B., Springmann, A., Angle, G., Bailey, L., Acuna, D., , Lewin, C., et al. (2019, Mar). Is Asteroid (3) Juno the Parent Body of H-Chondrite Meteorites?. In Lunar and Planetary Science Conference.
• Sarid, G., Volk, K., Steckloff, J., Harris, W., Womack, M., & Woodney, L. (2019, Sep). Orbital evolution of Centaurs and their transition to Jupiter family comets: implications for the onset of cometary activity. In EPSC-DPS Joint Meeting 2019, 2019.
• Springmann, A., Harris, W., Ryan, E., & Lejoly, C. (2019, Sep). Observations of a CN outburst from 45P/Honda-Mrkos-Pajdu\v{s}\'akov\'a. In EPSC-DPS Joint Meeting 2019, 2019.
• Lejoly, C., Samarasinha, N., Mueller, B., Harris, W., Springmann, A., Howell, E., Ryan, E., Bodnarik, J., Mitchell, A., & Watson, Z. (2018, oct). Temporal Evolution of the Sunward Dust Feature of Comet 41P/Tuttle\ndashGiacobini\ndashKres\'ak. In AAS/Division for Planetary Sciences Meeting Abstracts \#50, 50.
• Springmann, A., Howell, E. S., Nolan, M. C., Lejoly, C., Taylor, P., Rivera-Valentin, E., Virkki, A., Zambrano-Marin, L. .., Harris, W. M., Harmon, J., & Rodriguez Sanchez-Vahamonde, C. (2018, oct). Modeling the large-grain ($\gt$2 cm) coma of comet 45P/Honda\ndashMrkos\ndashPajdu\v s\'akov\'a from Arecibo Observatory radar observations. In AAS/Division for Planetary Sciences Meeting Abstracts \#50, 50.
• Springmann, A., Howell, E., Nolan, M., Lejoly, C., Taylor, P., Rivera-Valentin, E., Virkki, A., Zambrano-Marin, L. .., Harris, W., Harmon, J., & Rodriguez Sanchez-Vahamonde, C. (2018, oct). Modeling the large-grain ($\gt$2 cm) coma of comet 45P/Honda\ndashMrkos\ndashPajdu\v s\'akov\'a from Arecibo Observatory radar observations. In AAS/Division for Planetary Sciences Meeting Abstracts \#50, 50.
• Zambrano-Marin, L. .., Rivera-Valentin, E., Taylor, P., Nolan, M. C., Harris, W. M., Mueller, B., Samarasinha, N., Belton, M., & Howell, E. S. (2018, oct). Arguments for NPA rotation of comet 41P/Tuttle-Giacobini-Kres\'ak. In AAS/Division for Planetary Sciences Meeting Abstracts \#50, 50.
• France, K., Fleming, B., West, G., McCandliss, S., Bolcar, M., Harris, W., Moustakas, L., O'Meara, J., Pascucci, I., Rigby, J., Schiminovich, D., & Tumlinson, J. (2017, aug). The LUVOIR Ultraviolet Multi-Object Spectrograph (LUMOS): instrument definition and design. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 10397.
• Harris, W., Gaylor, D., & Furfaro, R. (2017, feb). Wayfarer: Small Body Exploration with a Common-Format Microsatellite. In Planetary Science Vision 2050 Workshop, 1989.
• Harris, W., Ryan, E., Springmann, A., Mueller, B., Samarasinha, N., Kikwaya, E. J., Howell, E., Lejoly, C., Bodnarik, J., Fitzpatrick, R., Maciel, R., Mitchell, A., & Watson, Z. (2017, oct). The radial and azimuthal properties of volatiles and dust in the inner coma of Comet 45P/Honda-Mrkos-Pajdu\v s\'akov\'a. In AAS/Division for Planetary Sciences Meeting Abstracts \#49, 49.
• Harris, W., Schmidt, B., & Villanueva, G. (2017, feb). Solar System Exploration with the Large Ultraviolet Optical and Infrared Surveyor (LUVOIR). In Planetary Science Vision 2050 Workshop, 1989.
• Howell, E. S., Lejoly, C., Taylor, P. A., Rivera-Valentin, E. G., Zambrano-Marin, L. F., Giorgini, J. D., Nolan, M. C., Samarasinha, N. H., Mueller, B. E., Aponte-Hernandez, B. .., Saran Bhiravarasu, S., Rodriguez Sanchez-Vahamonde, C., & Harris, W. M. (2017, oct). Arecibo radar observations of 41P/Tuttle-Giacobini-Kresák constrain the nucleus size and rotation. In AAS/Division for Planetary Sciences Meeting Abstracts #49, 49.
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  I am the thesis advisor of Cassandra Lejoly who worked with me and Dr. Howell on this project. This work was supported through my NASA grant.
• Mueller, B., Samarasinha, N., Harris, W., Springmann, A., Lejoly, C., Bodnarik, J., Howell, E., Ryan, E., Kikwaya, E. J., Ryleigh Fitzpatrick, M., Watson, Z., Maciel, R., Macieira Mitchell, A., & Scotti, J. (2017, oct). The sunward continuum feature of Comet 45P/Honda-Mrkos-Pajdu\v s\'akov\'a. In AAS/Division for Planetary Sciences Meeting Abstracts \#49, 49.
• Siegmund, O., Ertley, C., Vallerga, J., Schindhelm, E., Harwit, A., Fleming, B., France, K., Green, J., McCandliss, S., & Harris, W. (2017, aug). Microchannel plate detector technology potential for LUVOIR and HabEx. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 10397.
• Springmann, A., Harris, W., Howell, E., Lovell, A., Kikwaya, E. J., Mueller, B., Samarasinha, N., Corliss, J., & Lejoly, C. (2017, mar). Narrowband Optical Observations of the Near-Nucleus Region of Jupiter-Family Comets Comet 45P/Honda-Mrkos-Pajdu\v s\'akov\'a (HMP). In Lunar and Planetary Science Conference, 48.
• Springmann, A., Howell, E., Harmon, J., Lejoly, C., Rivera-Valentin, E., Virkki, A., Zambrano-Marin, L., Taylor, P., Harris, W., Mueller, B., Samarasinha, N., & Rodriguez Sanchez-Vahamonde, C. (2017, oct). Particle Sizes in the Coma of Comet 45P/Honda-Mrkos-Pajdu\v s\'akov\'a from Arecibo Radar Observations. In AAS/Division for Planetary Sciences Meeting Abstracts \#49, 49.
• {Harris}, W., {Villanueva}, G., , B. (2016, oct). Solar System Exploration with LUVOIR. In AAS/Division for Planetary Sciences Meeting Abstracts, 48.
• {Hosseini}, S., , W. (2016, aug). Khayyam: progress and prospects of coupling a spatial heterodyne spectrometer (SHS) to a Cassegrain telescope for optical interferometry. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 9907.
• Dello Russo, N., Vervack, R., Kawakita, H., Cochran, A., McKay, A., Harris, W., Weaver, H., Lisse, C., DiSanti, M., Kobayashi, H., Biver, N., Bockel'ee-Morvan, D., Crovisier, J., Opitom, C., & Jehin, E. (2015, nov). Outgassing and chemical evolution of C/2012 S1 (ISON). In AAS/Division for Planetary Sciences Meeting Abstracts, 47.
• {Tumlinson}, J., {Seager}, S., {Dalcanton}, J., {Postman}, M., {Aigrain}, S., {battel}, S., {Brandt}, W., {Conroy}, C., {Feinberg}, L., {Gezari}, S., {Guyon}, O., {Harris}, W., {Hirata}, C., {Mather}, J., {Redding}, D., {Schiminovich}, D., , H. (2015, jan). Beyond JWST: Science Drivers for the Next Great UVOIR Space Telescope. In American Astronomical Society Meeting Abstracts, 225.
• Harris, W. M., & Corliss, J. B. (2014, June). Performance and validation of a suborbital FUV spatial heterodyne spectro-polarimeter optimized for wide-field observations of interplanetary hydrogen. In Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 9144, 11.
• Hosseini, S., & Harris, W. (2014, June). First calibration and visible wavelength observations of Khayyam a tunable spatial heterodyne spectroscopy (SHS).. In Proc. SPIE. 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91478L. (August 06, 2014), 9147.
• Harris, W., Corliss, J., Bétrémieux, Y., & Roesler, F. (2012, Fall). Environmental testing of an all-reflective spatial heterodyne spectrometer for wide input angle measurements of H Ly-alpha at high spectral resolving power. In Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray. Proceedings of the SPIE, 8443, 8 pp.
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  Article id: 844330
• Hosseini, S., Harris, W., & Corliss, J. (2012, Fall). Khayyam: a tunable spatial heterodyne spectrometer for observing diffuse emission line targets. In Ground-based and Airborne Instrumentation for Astronomy IV. Proceedings of the SPIE, 8446, 11 pp.
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  Article id: 84464K
• Vincent, F., Ben-Jaffel, L., & Harris, W. (2012, Fall). What does the interplanetary hydrogen tell us about the heliospheric interface?. In SF2A-2012: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, 53-58.
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  Editors: Boissier, S | de Laverny, P | Nardetto, N | Samadi, R | Valls-Gabaud, D | Wozniak, H

Presentations

• Corliss, J. B., Harris, W. M., Mierkiewicz, E., & Oliversen, R. (2016, March). Doppler shifted emission from comet 9P/Tempel 1 following the Deep Impact encounter: Evidence for large scale internal energy release producing a high-velocity jet from the impact site. 50th ESLAB Symposium: 30 years of comet encounters. Leiden, Netherlands.
• Dello Russo, N., Vervack, R., Weaver, H., Lisse, C., Kawakita, H., Kobayashi, H., McKay, A., Cochran, A., Harris, W., Biver, N., Bockel'ee-Morvan, D., Crovisier, J., Jehin, E., & DiSanti, M. (2014, jul). The evolving chemical composition of C/2012 S1 ISON as it approached the Sun. Asteroids, Comets, Meteors 2014.
• McKay, A., Cochran, A., Dello Russo, N., Weaver, H., Vervack, R., Harris, W., Kawakita, H., DiSanti, M., Chanover, N., & Tsvetanov, Z. (2014, jul). Evolution of fragment-species production in comet C/2012 S1 (ISON) from 1.6 au to 0.4 au. Asteroids, Comets, Meteors 2014.
• Hosseini, S., & Harris, W. (2012, oct). Introducing Tunable Special Heterodyne Spectrometers in Planetary Missions. LPI Contributions.
• Kawakita, H., Kobayashi, H., Dello, R. N., Vervack, R., Weaver, H., Lisse, C., Cochran, A., Harris, W., Bockelee-Morvan, D., Biver, N., Crovisier, J., & McKay, A. (2012, May). Spatial Distribution of Parent Volatiles in the Coma of Comet 103P/Hartley 2: Possible Segregation of Highly Volatile Ices. Asteroids, Comets, Meteors 2012. Niigata, Japan.
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  LPI Contribution No. 1667; id.6411
• McKay, A., Chanover, N., DiSanti, M., Morgenthaler, J., Cochran, A., Harris, W., & Dello, R. N. (2012, May). Using Atomic Oxygen as a Proxy for CO2 Production in Comets: Application to Comets 103P/Hartley and C/2009 P1 Garradd. Asteroids, Comets, Meteors 2012. Niigata, Japan.
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  LPI Contribution No. 1667; id.6212

Poster Presentations

• Hosseini, S., & Harris, W. (2014, jul). Introducing tunable special heterodyne spectrometers in cometary studies. Asteroids, Comets, Meteors 2014.
• Kawakita, H., Dello Russo, N., Vervack, R., Weaver, H., Lisse, C., Kobayashi, H., McKay, A., Cochran, A., Harris, W., Biver, N., Bockelee-Morvan, D., Crovisier, J., & Jehin, E. (2014, jul). Pre-perihelion near-infrared spectroscopy from Keck and IRTF of comet C/2013 R1 (Lovejoy). Asteroids, Comets, Meteors 2014.
• Harris, W., & Hosseini, S. (2013, Fall). Developing and Calibrating a Tunable Spatial Heterodyne Spectroscopy (SHS) for Visible and UV Interferometry of Extended Targets. DPS meeting #45American Astronomical Society.
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  #211.05
• Hosseini, S., Harris, W., & Corliss, J. (2013, Fall). First calibration and visible band observations of Khayyam, a Tunable Spatial Heterodyne Spectroscopy (SHS). American Geophysical Union, Fall Meeting 2013.
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  Abstract #P51G-1824
• McKay, A., Chanover, N., DiSanti, M., Morgenthaler, J., Villanueva, G., Cochran, A., Harris, W., Dello, R. N., & Vervack, R. (2013, Fall). The Origin of Daughter Species in Cometary Comae: Results from Observations of Comets 103P/Hartley and C/2009 P1 Garradd. DPS meeting #45American Astronomical Society.
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  #502.07
• Dello, R. N., Vervack Jr, R., Kawakita, H., Harris, W., Cochran, A., Kobayashi, H., Weaver, H., Biver, N., Bockelée-Morvan, D., & Crovisier, J. (2012, Fall). The Volatile Composition of 81P/Wild 2 and a Chemical Comparison to Other Jupiter-Family Comets. DPS meeting #44American Astronomical Society.
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  #314.18
• Dello, R. N., Vervack, R., Weaver, H., Lisse, C., Kawakita, H., Kobayashi, H., Cochran, A., Harris, W., Bockelée-Morvan, D., Biver, N., Crovisier, J., & McKay, A. (2012, May). A High-Resolution Infrared Spectral Survey of 103P/Hartley 2 on the Night of the EPOXI Closest Approach. Asteroids, Comets, Meteors 2012. Niigata, Japan.
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  LPI Contribution No. 1667, id.6286
• Harris, W., Morgenthaler, J., & Vervack, R. (2012, May). Production Rate and Spatial Distribution of Carbon in the Coma of C/1995O1 (Hale-Bopp): Implications for the Neutral Carbon Lifetime and Coma Velocity Structure. Asteroids, Comets, Meteors 2012. Niigata, Japan.
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  LPI Contribution No. 1667; id.6479
• Hosseini, S., & Harris, W. (2012, June). Introducing Tunable Special Heterodyne in Studying Climatology of Terrestrial Planets. Comparative Climatology of Terrestrial Planets. Boulder, CO.
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  Dates: 06/25-28/12; LPI Contribution No. 1675; id.8059
• Hosseini, S., & Harris, W. (2012, October). Introducing Tunable Special Heterodyne Spectrometers in Planetary Missions. International Workshop on Instrumentation for Planetary Missions. Greenbelt, MD.
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  Pages: 1012; LPI Contribution No. 1683
• Hosseini, S., Corliss, J., & Harris, W. (2012, May). Observations of Comet C/2009P1 (Garrad) with a Tunable Spatial Heterodyne Spectrometer. Asteroids, Comets, Meteors 2012. Niigata, Japan.
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  LPI Contribution No. 1667, id.6486
• Hosseini, S., Harris, W., & Corliss, J. (2012, Fall). Tunable Spatial Heterodyne Spectroscopy (shs) For Visible And Uv Interferometry Of Extended Targets. DPS meeting #44American Astronomical Society.
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  #215.20
• Kawakita, H., Dello, R. N., Vervack Jr, R., Kobayashi, H., Weaver, H., Harris, W., Cochran, A., Biver, N., Bockelée-Morvan, D., & Crovisier, J. (2012, Fall). Outgassing Of Parent Molecules In Comet C/2010 G2 (Hill) During Its Outburst At Rh=2.5 AU. DPS meeting #44American Astronomical Society.
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  #314.17
• McKay, A., Chanover, N., DiSanti, M., Morgenthaler, J., Cochran, A., Harris, W., Dello, R. N., & Vervack Jr, R. (2012, Fall). Infrared and Optical Spectroscopy of Comet C/2009 P1 Garradd: CO Abundance and Implications for the Atomic Oxygen Yield from CO Photodissociation. DPS meeting #44American Astronomical Society.
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  #506.09
• Vincent, F., Jaffel, L., Harris, W., Clarke, J., & Quemerais, E. (2012, Fall). New measurement of the upwind interplanetary hydrogen velocity as observed by the Hubble Space Telescope. American Geophysical Union, Fall Meeting 2012.
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  Abstract #SH23A-2222

Others

• Bodewits, D., Farnocchia, D., Harris, W. M., Li, J., Mandt, K., Noonan, J. W., Venkataramani, K., & Xing, Z. (2021). The return of Rosetta's comet 67P/Churyumov-Gerasimenko.
• Bodewits, D., Stern, A., Farnham, T. L., Harris, W. M., Kelley, M. S., Li, J., Noonan, J. W., & Womack, M. (2021). Characterizing the aftermath of mega-outbursts of Centaur 29P.
• Dello, R. N., Vervack Jr., R., Kawakita, H., Cochran, A., Harris, W., Weaver, H., Kobayashi, H., Biver, N., Bockelee-Morvan, D., Crovisier, J., Jehin, E., & Lisse, C. (2013, Fall). Comet C/2012 S1 (Ison). Central Bureau Electronic Telegrams.
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  Editor: Gree, DWE; Volume: 3686; Number: 1