Ellen Susanna Howell
- Research Professor, Lunar and Planetary Laboratory
- Member of the Graduate Faculty
Contact
- (520) 626-2880
- Gerard P. Kuiper Space Sci., Rm. 218
- Tucson, AZ 85721
- ehowell@arizona.edu
Degrees
- Ph.D. Planetary Sciences
- University of Arizona, Tucson, Arizona, United States
- Probing Asteroid Composition using Visible and Near-Infrared Spectroscopy
Awards
- Asteroid 2735 Ellen
- IAU, Fall 2015
Interests
No activities entered.
Courses
2024-25 Courses
-
Dissertation
PTYS 920 (Fall 2024)
2023-24 Courses
-
Dissertation
PTYS 920 (Spring 2024) -
Dissertation
PTYS 920 (Fall 2023)
2022-23 Courses
-
Research
PTYS 900 (Spring 2023) -
Independent Study
PTYS 599 (Fall 2022) -
Research
PTYS 900 (Fall 2022)
2021-22 Courses
-
Independent Study
PTYS 599 (Spring 2022)
Scholarly Contributions
Journals/Publications
- Clark, B., Sen, A., Zou, X. -., DellaGiustina, D., Sugita, S., Sakatani, N., Thompson, M., Trang, D., Tatsumi, E., Barucci, M., Barker, M., Campins, H., Morota, T., Lantz, C., Hendrix, A., Vilas, F., Keller, L., Hamilton, V., Kitazato, K., , Sasaki, S., et al. (2023). Overview of the search for signs of space weathering on the low-albedo asteroid (101955) Bennu. \icarus, 400, 115563.
- Myers, S. A., Howell, E. S., Magri, C., Vervack, R. J., Fern{\'andez}, Y. R., Marshall, S. E., & Taylor, P. A. (2023). Constraining the Limitations of NEATM-like Models: A Case Study with Near-Earth Asteroid (285263) 1998 QE2. \psj, 4(1), 5.
- Rivkin, A. S., Thomas, C. A., Wong, I., Rozitis, B., Le{\'on}, J., Holler, B., Milam, S. N., Howell, E. S., Hammel, H. B., Arredondo, A., Brucato, J. R., Epifani, E. M., Ieva, S., La, F. F., Lucas, M. P., Lucchetti, A., Pajola, M., Poggiali, G., Sunshine, J. N., & Trigo-Rodr{\'\iguez}, J. M. (2023). Near to Mid-infrared Spectroscopy of (65803) Didymos as Observed by JWST: Characterization Observations Supporting the Double Asteroid Redirection Test. \psj, 4(11), 214.
- 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.
- Prabhu, D. S., Margot, J., Howell, E. S., Presler-Marshall, B., McGlasson, R. A., Repp, D., L{\'opez-Oquendo}, A., Jim{\'enez}, F., Bagu{\'e}, A., Lebr{\'on}, J., Marrero, J., Negr{\'on}, V., Padilla, D., Gonz{\'alez}, E., Cabrera, I., Perillat, P., Nolan, M. C., Rodriguez, S. C., Aponte, H. B., , Bhiravarasu, S. S., et al. (2022). Arecibo Planetary Radar Observations of Near-Earth Asteroids: 2017 December-2019 December. Planetary Science Journal, 3(9), 222.
- DellaGiustina, D., Kaplan, H., Simon, A., Bottke, W., Avdellidou, C., Delbo, M., Ballouz, R. -., Golish, D., Walsh, K., Popescu, M., Campins, H., Barucci, M., Poggiali, G., Daly, R., Le Corre, L., Hamilton, V., Porter, N., Jawin, E., McCoy, T., , Connolly, H., et al. (2021). Exogenic basalt on asteroid (101955) Bennu. Nature Astronomy, 5, 31-38.
- Praet, A., Barucci, M., Clark, B., Kaplan, H., Simon, A., Hamilton, V., Emery, J., Howell, E., Lim, L., Zou, X. -., Li, J. -., Reuter, D., Merlin, F., Deshapriya, J., Fornasier, S., Hasselmann, P., Poggiali, G., Ferrone, S., Brucato, J., , Takir, D., et al. (2021). Hydrogen abundance estimation and distribution on (101955) Bennu. \icarus, 363, 114427.
- Zegmott, T. J., Lowry, S., Ro{\.zek}, A., Rozitis, B., Nolan, M., Howell, E., Green, S., Snodgrass, C., Fitzsimmons, A., & Weissman, P. (2021). Detection of the YORP effect on the contact binary (68346) 2001 KZ66 from combined radar and optical observations. \mnras, 507(4), 4914-4932.
- Zegmott, T., Lowry, S., Rozek, A., Rozitis, B., Nolan, M., Howell, E., Green, S., Snodgrass, C., Fitzsimmons, A., & Weissman, P. (2021). VizieR Online Data Catalog: Contact-binary (68346) 2001 KZ66 light curves (Zegmott+, 2021). VizieR Online Data Catalog, J/MNRAS/507/4914.
- Ackley, K., Adya, V., Agrawal, P., Altin, P., Ashton, G., Bailes, M., Baltinas, E., Barbuio, A., Beniwal, D., Blair, C., Blair, D., Bolingbroke, G., Bossilkov, V., Shachar Boublil, S., Brown, D., Burridge, B., Calderon Bustillo, J., Cameron, J., Tuong Cao, H., , Carlin, J., et al. (2020). Neutron Star Extreme Matter Observatory: A kilohertz-band gravitational-wave detector in the global network. \pasa, 37, e047.
- Barucci, M., Hasselmann, P., Praet, A., Fulchignoni, M., Deshapriya, J., Fornasier, S., Merlin, F., Clark, B., Simon, A., Hamilton, V., Emery, J., Howell, E., Brucato, J., Cloutis, E., Zou, X., Li, J. -., Michel, P., Ferrone, S., Poggiali, G., , Reuter, D., et al. (2020). OSIRIS-REx spectral analysis of (101955) Bennu by multivariate statistics. \aap, 637, L4.
- DellaGiustina, D., Burke, K., Walsh, K., Smith, P., Golish, D., Bierhaus, E., Ballouz, R. -., Becker, T., Campins, H., Tatsumi, E., Yumoto, K., Sugita, S., Deshapriya, J. P., Cloutis, E., Clark, B., Hendrix, A., Sen, A., Al, A. M., Daly, M., , Applin, D., et al. (2020). Variations in color and reflectance on the surface of asteroid (101955) Bennu. Science, 370(6517), eabc3660.
- Gendre, B., Coward, D., Moore, J., Burrell, A., Klotz, A., Thierry, P., Crisp, H., & Howell, E. (2020). The Zadko telescope results: ten years of science. arXiv e-prints, arXiv:2008.03902.
- Hergenrother, C., Maleszewski, C., Li, J. -., Pajola, M., Chesley, S., French, A., Davis, A., Pelgrift, J., Leonard, J., Shelly, F., Liounis, A., Becker, K., Balram-Knutson, S., Garcia, R., Kareta, T., Adam, C., Alkiek, K., Bos, B., Brozovi{\'c}, M., , Burke, K., et al. (2020). Photometry of Particles Ejected From Active Asteroid (101955) Bennu. Journal of Geophysical Research (Planets), 125(9), e06381.
- Hirabayashi, M., Nakano, R., Tatsumi, E., Walsh, K. J., Barnouin, O. S., Michel, P., Hartzell, C. M., Britt, D. T., Sugita, S., Watanabe, S., Bottke, W. F., Scheeres, D. J., Ballouz, R., Cho, Y., Morota, T., Howell, E. S., & Lauretta, D. S. (2020). Spin-driven evolution of asteroids' top-shapes at fast and slow spins seen from (101955) Bennu and (162173) Ryugu. \icarus, 352, 113946.
- Kaplan, H. H., Hamilton, V. E., Howell, E. S., Scott Anderson, F., Barrucci, M. A., Brucato, J., Burbine, T. H., Clark, B. E., Cloutis, E. A., Connolly, H. C., Dotto, E., Emery, J. P., Fornasier, S., Lantz, C., Lim, L. F., Merlin, F., Praet, A., Reuter, D. C., Sandford, S. A., , Simon, A. A., et al. (2020). Visible-near infrared spectral indices for mapping mineralogy and chemistry with OSIRIS-REx. Meteoritics and Planetary Science, 55(4), 744-765.
- Lewin, C. D., Howell, E. S., Vervack Jr., ., Fern{\'andez}, Y. R., Magri, C., Marshall, S. E., Crowell, J. L., & Hinkle, M. L. (2020). Near-infrared Spectral Characterization of Solar-type Stars in the Northern Hemisphere. \aj, 160(3), 130.
- Lewin, C., Howell, E., Vervack, R., Fernandez, Y., Magri, C., Marshall, S., Crowell, J., & Hinkle, M. (2020). VizieR Online Data Catalog: SpT \& NIR color excess of Solar-type stars (Lewin+, 2020). VizieR Online Data Catalog, J/AJ/160/130.
- Takir, D., Kareta, T., Emery, J. P., Hanu{\v{s}}, J., Reddy, V., Howell, E. S., Rivkin, A. S., & Arai, T. (2020). Near-infrared observations of active asteroid (3200) Phaethon reveal no evidence for hydration. Nature Communications, 11, 2050.
- Busch, M. W., Ostro, S. J., Benner, L. A., Brozovic, M., Giorgini, J. D., Jao, J., Scheeres, D. J., Magri, C., Nolan, M. C., Howell, E. S., Taylor, P. A., Margot, J., & Brisken, W. (2019). Corrigendum to ``Radar observations and the shape of near-Earth asteroid 2008 EV5'' [ICARUS 212 (2011) 649-660]. \icarus, 333, 548-548.
- Dellagiustina}, D., Emery, J., Golish, D., Rozitis, B., Bennett, C., Burke, K., Ballouz, R. -., Becker, K., Christensen, P., Drouet, D. C., Hamilton, V., Reuter, D., Rizk, B., Simon, A., Asphaug, E., Bandfield, J., Barnouin, O., Barucci, M., Bierhaus, E., , Binzel, R., et al. (2019). Properties of rubble-pile asteroid (101955) Bennu from OSIRIS-REx imaging and thermal analysis. Nature Astronomy, 3, 341-351.
- Hamilton}, V., Simon, A., Christensen, P., Reuter, D., Clark, B., Barucci, M., Bowles, N., Boynton, W., Brucato, J., Cloutis, E., Connolly, H., Donaldson, H. K., Emery, J., Enos, H., Fornasier, S., Haberle, C., Hanna, R., Howell, E., Kaplan, H., , Keller, L., et al. (2019). Evidence for widespread hydrated minerals on asteroid (101955) Bennu. Nature Astronomy, 3, 332-340.
- Hergenrother}, C., Maleszewski, C., Nolan, M., Li, J. -., Drouet, D. C., Shelly, F., Howell, E., Kareta, T., Izawa, M., Barucci, M., Bierhaus, E., Campins, H., Chesley, S., Clark, B., Christensen, E., Dellagiustina, D., Fornasier, S., Golish, D., Hartzell, C., , Rizk, B., et al. (2019). The operational environment and rotational acceleration of asteroid (101955) Bennu from OSIRIS-REx observations. Nature Communications, 10, 1291.
- Lauretta}, D., Dellagiustina, D., Bennett, C., Golish, D., Becker, K., Balram-Knutson, S., Barnouin, O., Becker, T., Bottke, W., Boynton, W., Campins, H., Clark, B., Connolly, H., Drouet, D. C., Dworkin, J., Emery, J., Enos, H., Hamilton, V., Hergenrother, C., , Howell, E., et al. (2019). The unexpected surface of asteroid (101955) Bennu. \nat, 568(7750), 55-60.
- Nolan, M. C., Howell, E. S., Scheeres, D., McMahon, J., Golubov, O., Hergenrother, C., Emery, J., Noll, K., Chesley, S., & Lauretta, D. (2019). Detection of Rotational Acceleration of Bennu Using HST Light Curve Observations. GRL, 46(4), 1956-1962.
- Rivkin, A. S., Howell, E. S., & Emery, J. P. (2019). Infrared Spectroscopy of Large, Low-Albedo Asteroids: Are Ceres and Themis Archetypes or Outliers?. Journal of Geophysical Research (Planets), 124(5), 1393-1409.
- Rozek, A., Lowry, S., Nolan, M., Taylor, P., Benner, L., Fitzsimmons, A., Zegmott, T., Weissman, P., Green, S., Rozitis, B., Snodgrass, C., Smythe, W., Hicks, M., Howell, E., Virkki, A., Aponte-Hernandez, B. .., Rivera-Valentin, E., Rodriguez-Ford, L., Zambrano-Marin, L., , Brozovic, M., et al. (2019). VizieR Online Data Catalog: PHA contact-binary (85990) 1999 JV6 light curves (Rozek+, 2019). VizieR Online Data Catalog, J/A+A/631/A149.
- Ro{\.zek}, A., Lowry, S., Nolan, M., Taylor, P., Benner, L., Fitzsimmons, A., Zegmott, T., Weissman, P., Green, S., Rozitis, B., Snodgrass, C., Smythe, W., Hicks, M., Howell, E., Virkki, A., {Aponte-Hernand, e. B., Rivera-Valent{\'\in}, E., Rodriguez-Ford, L., Zambrano-Marin, L., , Brozovi{\'c}, M., et al. (2019). Shape model and spin-state analysis of PHA contact binary (85990) 1999 JV6 from combined radar and optical observations. \aap, 631, A149.
- Virkki, A., Zubko, E., Nolan, M., Howell, E., Benner, L., & Harmon, J. (2019). Decimeter-scale particle characterization in the coma of 73P/Schwassmann-Wachmann 3 using dual-wavelength radar observations. \icarus, 325, 94-104.
- Brozovi{\'c}, M., Benner, L., McMichael, J., Giorgini, J., Pravec, P., Scheirich, P., Magri, C., Busch, M., Jao, J., Lee, C., Snedeker, L., Silva, M., Slade, M., Semenov, B., Nolan, M., Taylor, P., Howell, E., & Lawrence, K. (2018). Goldstone and Arecibo radar observations of (99942) Apophis in 2012-2013. \icarus, 300, 115-128.
- Howell, E., Magri, C., Vervack, ., Nolan, M., Taylor, P., Fern{\'andez}, Y., Hicks, M., Somers, J., Lawrence, K., Rivkin, A., Marshall, S., & Crowell, J. (2018). SHERMAN - A shape-based thermophysical model II. Application to 8567 (1996 HW1). \icarus, 303, 220-233.
- Magri, C., Howell, E., Vervack, R., Nolan, M., Fern{\'andez}, Y., Marshall, S., & Crowell, J. (2018). SHERMAN, a shape-based thermophysical model. I. Model description and validation. \icarus, 303, 203-219.
- Rivkin, A., Howell, E., Emery, J., & Sunshine, J. (2018). Evidence for OH or H$_2$O on the surface of 433 Eros and 1036 Ganymed. \icarus, 304, 74-82.
- Shepard, M. K., Timmerson, B., Scheeres, D. J., Benner, L. A., Howell, E. S., Magri, C., Nolan, M. C., Springmann, A., Taylor, P. A., & Virkki, A. (2018). A Revised Shape Model of Asteroid (216) Kleopatra. Icarus.
- Taylor, P. A., Ostro, S. J., Jurgens, R., Howell, E. S., Nolan, M. C., Slade, M., Giorgini, J. D., Jao, J., Brozovic, M., Benner, L. A., & Lawrance, K. (2018). Arecibo and Goldstone Radar Images of Near-Earth Asteroid (469896) 2005 WC1. Icarus, 300, 12-20. doi:10.1016/j.icarus.2017.08.028
- Virkki, A., Taylor, P. A., Springmann, A., Nolan, M. C., Magri, C., Howell, E. S., Benner, L. A., Scheeres, D. J., Timmerson, B., & Shepard, M. K. (2018). A Revised Shape Model of Asteroid (216) Kleopatra. Icarus, 311, 197-209.
- Brozovic, M., Benner, L. A., Magri, C., Scheeres, D. J., Busch, M. W., Giorgini, J. D., Nolan, M. C., Jao, J. S., Lee, C. G., Snedeker, L. G., Silva, M. A., Lawrence, K. J., Slade, M. A., Hicks, M. D., Howell, E. S., Taylor, P. A., Sanchez, J. A., Reddy, V., Dykhuis, M., & Le Corre, L. (2017). Goldstone radar evidence for short-axis mode non-principal-axis rotation of near-Earth asteroid (214869) 2007 PA8. Icarus, 286, 314-329. doi:10.1016/j.icarus.2016.10.016
- DiSanti, M., Bonev, B., Dello Russo, N., Vervack, R., Gibb, E., Roth, N., McKay, A., Kawakita, H., Howell, E., Zambrano-Marin, F. .., Yoshida, S., Yoshimoto, K., Gonzalez, J., Hasubick, W., & Wierzchos, K. (2017). Comet 45P/Honda-Mrkos-Pajdusakova. Central Bureau Electronic Telegrams, 4357.
- Harris, A. W., Warner, B. D., Giorgini, J. D., Benner, L. A., Howell, E. S., Nolan, M. C., Magri, C., Reddy Kanupuru, V. V., Timmerson, B., Viikinkoski, M., Kaasalainen, M., Close, L. M., Morzinski, K. M., Males, J. R., de Kleer, K., Adamkovics, M., de Pater, I., Conrad, A., Rodriguez-Ford, L. A., , Taylor, P. A., et al. (2017). Radar Observations and Shape Model of Asteroid 16 Psyche. Icarus, 281, 388-403. doi:10.1016/j.icarus.2016.08.011
- Moskovitz, N., Polishook, D., DeMeo, F., Binzel, R., Endicott, T., Yang, B., Howell, E., Vervack, ., & Fern{\'andez}, Y. (2017). Near-infrared thermal emission from near-Earth asteroids: Aspect-dependent variability. \icarus, 284, 97-105.
- Rivkin, A., Pravec, P., Thomas, C., Thirouin, A., Snodgrass, C., Green, S., Licandro, J., Sickafoose, A., Erasmus, N., Howell, E., Osip, D., Thomas-Osip, J. .., Moskovitz, N., Scheirich, P., Oszkiewicz, D., Richardson, D., Polishook, D., Ryan, W., & Busch, M. (2017). The Remote Observing Working Group for the Asteroid Impact and Deflection Assessment (AIDA). European Planetary Science Congress, 11, EPSC2017-401.
- Sandford, S. A., Righter, K., Nakamura-Messenger, K. .., Messenger, S., Scheeres, D. J., McMahon, J. W., McCoy, T. J., Emery, J. P., Daly, M. G., Crombie, M. K., Connolly, H. C., Clark, B. E., Christensen, P. R., Chesley, S. R., Walsh, K. J., Hamilton, V. E., Bottke, W. F., Binzel, R. P., Barnouin, O. S., , Ballouz, R., et al. (2017). OSIRIS-REx: Sample Return from Asteroid (101955) Bennu. Space Science Reviews. doi:10.1007/s11214-017-0405-1
- Shepard, M. K., Richardson, J., Taylor, P. A., Warner, B. D., Reddy, V., Conrad, A., de Pater, I., Adamkovics, M., de Kleer, K., Magri, C., Nolan, M. C., Howell, E. S., Benner, L. A., Giorgini, J. D., & Harris, A. W. (2016). RADAR OBSERVATIONS AND SHAPE MODEL OF ASTEROID 16 PSYCHE.. Icarus.
- Taylor, P. A., Lawrence, K. J., Hicks, M. D., Crowell, J. L., Nolan, M. C., Fernández, Y. R., Campbell, D. B., Vervack, R. J., Magri, C., Howell, E. S., & Marshall, S. E. (2017). Thermal Properties and an Improved Shape Model for Near-Earth Asteroid (162421) 2000 ET70. Icarus, 292, 22-35. doi:10.1016/j.icarus.2017.03.02
- Vervack, R. J., Springmann, A., Marshall, S. E., Warner, B. D., Richardson, J. E., Fernandez, Y. R., Nolan, M. C., Magri, C., Howell, E. S., & Crowell, J. L. (2017). Radar and Lightcurve Shape Model of Near-Earth Asteroid (1627) Ivar. Icarus, 291, 254-267. doi:10.1016/j.icarus.2016.11.008
- Virkki, A., Taylor, P., Zambrano-Marin, L., Howell, E., Nolan, M., Lejoly, C., Rivera-Valentin, E., & Aponte, B. (2017). Near-surface bulk densities of asteroids derived from dual-polarization radar observations. European Planetary Science Congress, 11, EPSC2017-750.
- Binzel, R., DeMeo, F., Burt, B., Cloutis, E., Rozitis, B., Burbine, T., Campins, H., Clark, B., Emery, J., {Hergenrother, C., Howell, E. S., Lauretta, D. S., Nolan, M. C., Mansfield, M., Pietrasz, V., Polishook, D., & Scheeres, D. (2015). Spectral slope variations for OSIRIS-REx target Asteroid (101955) Bennu: Possible evidence for a fine-grained regolith equatorial ridge. Icarus, 256, 22-29.
- {Becker}, T., Howell, E. S., Nolan, M. C., {Magri}, C., {Pravec}, P., {Taylor}, P., {Oey}, J., {Higgins}, D., {Vil{\'a}gi}, J., {Korno{\v s}}, L., {Gal{\'a}d}, A., {Gajdo{\v s}}, {. S., {Gaftonyuk}, N., {Krugly}, Y., {Molotov}, I., {Hicks}, M., {Carbognani}, A., {Warner}, B., {Vachier}, F., , {Marchis}, F., et al. (2015). Physical modeling of triple near-Earth Asteroid (153591) 2001 SN263 from radar and optical light curve observations. Icarus, 248, 499-515. doi:10.1016/j.icarus.2014.10.048
- {Becker}, T., {Howell}, E., {Nolan}, M., {Magri}, C., {Pravec}, P., {Taylor}, P., {Oey}, J., {Higgins}, D., {Vil{\'a}gi}, J., {Korno{\v s}}, L., {Gal{\'a}d}, A., {Gajdo{\v s}}, {. S., {Gaftonyuk}, N., {Krugly}, Y., {Molotov}, I., {Hicks}, M., {Carbognani}, A., {Warner}, B., {Vachier}, F., , {Marchis}, F., et al. (2015). Physical modeling of triple near-Earth Asteroid (153591) 2001 SN$_{263}$ from radar and optical light curve observations. \icarus, 248, 499-515.
- {Benner}, L., {Brozovic}, M., {Giorgini}, J., {Jao}, J., {Lee}, C., {Taylor}, P., {Howell}, E., {Busch}, M., {Ford}, H., {Ghigo}, F., {Nolan}, M., {Slade}, M., {Lawrence}, K., {Richardson}, J., {Rivera-Valentin}, E., , A. (2015). Radar Imaging of Binary Near-Earth Asteroid (357439) 2004 BL86. IAU General Assembly, 22, 2257549.
- {Fernandez}, Y., {Li}, J., {Howell}, E., , L. (2015). Asteroids and Comets. ArXiv e-prints.
- {Rivkin}, A., {Campins}, H., {Emery}, J., {Howell}, E., {Licandro}, J., {Takir}, D., , F. (2015). Astronomical Observations of Volatiles on Asteroids. ArXiv e-prints.
- {Rivkin}, A., {Thomas}, C., {Howell}, E., , J. (2015). The Ch-class Asteroids: Connecting a Visible Taxonomic Class to a 3 {$\mu$}m Band Shape. \aj, 150, 198.
- {Shepard}, M., {Taylor}, P., {Nolan}, M., {Howell}, E., {Springmann}, A., {Giorgini}, J., {Warner}, B., {Harris}, A., {Stephens}, R., {Merline}, W., {Rivkin}, A., {Benner}, L., {Coley}, D., {Clark}, B., {Ockert-Bell}, M., , C. (2015). A radar survey of M- and X-class asteroids. III. Insights into their composition, hydration state, {\amp} structure. \icarus, 245, 38-55.
- {Taylor}, P., {Howell}, E., {Nolan}, M., {Richardson}, J., , A. (2015). Physical Diversity of Near-Earth Asteroids from Arecibo Radar Observations. IAU General Assembly, 22, 2257991.
- {Wooden}, D., {Lederer}, S., {Bus}, S., {Tokunaga}, A., {Jehin}, E., {Howell}, E., {Nolan}, M., {Ryan}, E., {Fernandez}, Y., {Harker}, D., {Reddy}, V., {Benner}, L., {Lovell}, A., {Moskovitz}, N., {Kerr}, T., , C. (2015). NEAs: Phase Angle Dependence of Asteroid Class and Diameter from Observational Studies. IAU General Assembly, 22, 2257359.
- {Benner}, L., {Brozovic}, M., {Giorgini}, J., {Busch}, M., {Nolan}, M., {Taylor}, P., {Howell}, E., {Springmann}, A., {Jao}, J., {Lee}, C., {Slade}, M., {Mainzer}, A., {Pollock}, J., {Reichart}, D., {Haislip}, J., {Frank}, N., , A. (2014). Goldstone and Arecibo Radar Imaging of Near-Earth Asteroid 2014 HQ124. AGU Fall Meeting Abstracts.
- {Bolin}, B., {Jedicke}, R., {Granvik}, M., {Brown}, P., {Howell}, E., {Nolan}, M., {Jenniskens}, P., {Chyba}, M., {Patterson}, G., , R. (2014). Detecting Earth's temporarily-captured natural satellites-Minimoons. \icarus, 241, 280-297.
- {Chesley}, S., {Farnocchia}, D., {Nolan}, M., {Vokrouhlick{\'y}}, D., {Chodas}, P., {Milani}, A., {Spoto}, F., {Rozitis}, B., {Benner}, L., {Bottke}, W., {Busch}, M., {Emery}, J., {Howell}, E., {Lauretta}, D., {Margot}, J., , P. (2014). Orbit and bulk density of the OSIRIS-REx target Asteroid (101955) Bennu. \icarus, 235, 5-22.
- {Giorgini}, J., Howell, E. S., {Taylor}, P., {Richardson}, J., {Ford}, L., {Zambrano-Marin}, L., Nolan, M. C., {Brozovic}, M., , L. (2014). (2340) Hathor. \iaucirc, 9272.
- {Hergenrother}, C., {Barucci}, M., {Barnouin}, O., {Bierhaus}, B., {Binzel}, R., {Bottke}, W., {Chesley}, S., {Clark}, B., {Clark}, B., {Cloutis}, E., {Drouet d'Aubigny}, C., {Delbo}, M., {Emery}, J., {Gaskell}, B., {Howell}, E., {Keller}, L., {Kelley}, M., {Marshall}, J., {Michel}, P., , {Nolan}, M., et al. (2014). The Design Reference Asteroid for the OSIRIS-REx Mission Target (101955) Bennu. ArXiv e-prints.
- {Busch}, M., {Jacobson}, S., {Benner}, L., {Brozovic}, M., {Howell}, E., {Margot}, J., {Naidu}, S., {Shepard}, M., , P. (2013). A Lower Size Limit for Near-Earth Asteroid Satellites. AGU Fall Meeting Abstracts.
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Proceedings Publications
- Brozovic, M., Benner, L., Nolan, M., Pravec, P., Magri, C., & Howell, E. (2023, oct). Spin and shape of near-Earth asteroid (53319) 1999 JM8 from radar and lightcurve observations in 1999. In AAS/Division for Planetary Sciences Meeting Abstracts, 55.
- Myers, S., Howell, E., Magri, C., Vervack, R., & Fernandez, Y. (2023, oct). Differences in NEA Simple Thermal Model Results Between IRTF SpeX and NEOWISE Data. In AAS/Division for Planetary Sciences Meeting Abstracts, 55.
- Rivera-Valent{\'\in}, E., Aponte, H. B., Taylor, P., Devog{\`ele}, M., Zambrano-Marin, L., Howell, E., Nolan, M., & Virkki, A. (2023, oct). Kernel Density Estimation of the Distribution of Asteroid Radar Polarization Ratios as a Function of Taxonomy. In AAS/Division for Planetary Sciences Meeting Abstracts, 55.
- Howell, E., Vervack, R., Fernandez, Y., Hinkle, M., McFadden, K., Myers, S., Marshall, S., Magri, C., & Crowell, J. (2022, dec). Constraining the Spectral Homogeneity of Near-Earth Asteroids. In AAS/Division for Planetary Sciences Meeting Abstracts, 54.
- Margot, J., Howell, E. S., Repp, D., McGlasson, R., Presler-Marshall, B., L{\'opez-Oquendo}, A., Nolan, M. C., Sanchez-Vahamonde,, C. R., Hernandez, B., Bhiravarasu, S., Diaz, E. F., Devogele, M., McGilvray, A., Rivera-Valentin, E., Taylor, P., Hickson, D., Marin, L. F., Venditti, F., Marshall, S., & Virkki, A. K. (2022, dec). Arecibo Planetary Radar Observations of Near-Earth Asteroids: December 2017 - December 2019. In AAS/Division for Planetary Sciences Meeting Abstracts, 54.
- McFadden, K., Howell, E., Vervack, R., Fernandez, Y., Magri, C., & Carter, L. (2022, dec). Mid-Infrared Thermophysical Models of Near-Earth Asteroid 2100 Ra-Shalom. In AAS/Division for Planetary Sciences Meeting Abstracts, 54.
- Myers, S., Howell, E., Magri, C., Vervack, R., Fernandez, Y., Marshall, S., & Taylor, P. (2022, dec). Comparison of NEATM-like Models with NASA IRTF and NEOWISE Observations of Near-Earth Asteroid (285263) 1998 QE2. In AAS/Division for Planetary Sciences Meeting Abstracts, 54.
- Virkki, A., Marshall, S., Venditti, F., Zambrano, M. L., Hickson, D., Taylor, P., Rivera-Valentin, E., McGilvray, A., Devogele, M., Franco, D. E., Bhiravarasu, S., Hernandez, B., Rodriguez, S. C., Nolan, M., L{\'opez-Oquendo}, A., Presler-Marshall, B., McGlasson, R., Repp, D., Howell, E., & Margot, J. (2022, dec). Arecibo Planetary Radar Observations of Near-Earth Asteroids: December 2017 \textendash December 2019. In AAS/Division for Planetary Sciences Meeting Abstracts, 54.
- Gendre, B., Coward, D., Moore, J., Burrell, A., Klotz, A., Thierry, P., Crisp, H., & Howell, E. (2021, sep). The Zadko Telescope Results: Ten Years of Science. In Revista Mexicana de Astronomia y Astrofisica Conference Series, 53.
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- McFadden, K., Howell, E., Vervack Jr., ., Fernandez, Y., Magri, C., & Carter, L. (2021, oct). Thermophysical Modeling of Near-Earth Asteroid 2100 Ra-Shalom Using a Revised Shape Model. In AAS/Division for Planetary Sciences Meeting Abstracts, 53.
- McFadden, K., Howell, E., Vervack, R., Fernandez, Y., Magri, C., & Carter, L. (2021, mar). Modeling Thermophysical Properties of 2100 Ra-Shalom. In 52nd Lunar and Planetary Science Conference.
- Myers, S., Howell, E., Fernandez, Y., Vervack, R., Marshall, S., & Taylor, P. (2021, oct). Comparisons of NEATM-like Models for NEAs with NASA IRTF and NEOWISE Data. In AAS/Division for Planetary Sciences Meeting Abstracts, 53.
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- {Howell}, E., {Rivkin}, A., {Soderberg}, A., {Vilas}, F., , A. (1999, sep). Aqueous Alteration of Asteroids: Correlation of the 3 MU M and 0.7 MU M Hydration Bands. In AAS/Division for Planetary Sciences Meeting Abstracts \#31, 31.
- {Howell}, E., {Rivkin}, A., {Soderberg}, A., {Vilas}, F., , A. (1999, sep). Aqueous alteration of asteroids: correlation of the 3 {$\mu$}m and 0.7 {$\mu$}m hydration bands.. In Bulletin of the American Astronomical Society, 31.
- {Jarvis}, K., {Vilas}, F., {Howell}, E., {Kelley}, M., , A. (1999, sep). Testing the Prediction of Iron Alteration Minerals on Low Albedo Asteroids. In AAS/Division for Planetary Sciences Meeting Abstracts \#31, 31.
- {Jarvis}, K., {Vilas}, F., {Howell}, E., {Kelley}, M., , A. (1999, sep). Testing the prediction of iron alteration minerals on low albedo asteroids.. In Bulletin of the American Astronomical Society, 31.
- {Soderberg}, A., , E. (1999, dec). 0.7 {$\mu$} m Observations of Hydrated Central Belt Asteroids. In American Astronomical Society Meeting Abstracts, 31.
- {Rivkin}, A., {Britt}, D., {Lebofsky}, L., {Howell}, E., , B. (1997). Correlation of Water of Hydration with Diameter in Tholen E-class and M-class Asteroids. In Parent-Body and Nebular Modification of Chondritic Materials.
- {Rivkin}, A., {Howell}, E., {Clark}, B., {Lebofsky}, L., , D. (1997, mar). S-class asteroids - The view from three microns. In Lunar and Planetary Science Conference, 28.
- {Rivkin}, A., {Lebofsky}, L., {Britt}, D., , E. (1997, jul). Three-Micron Survey of E- and M-class Asteroids: Final Results. In AAS/Division for Planetary Sciences Meeting Abstracts \#29, 29.
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- {Merenyi}, E., {Howell}, E., {Rivkin}, A., , L. (1996, sep). Prediction of Water in Asteroids from Short Wavelength ($\lt$ 3 Micron) Spectral Data: A Neural Network Study, II. In AAS/Division for Planetary Sciences Meeting Abstracts \#28, 28.
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- {Mer{\'e}nyi}, E., {Howell}, E., {Rivkin}, A., , L. (1995, jun). Asteroid Classification Based on Water of Hydration: A Neural Network Study. In AAS/Division for Planetary Sciences Meeting Abstracts \#27, 27.
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- {Larson}, H., {Montani}, J., {Lebofsky}, L., {Rivkin}, A., {Howell}, E., , C. (1994, jun). Volatiles in Asteroidal Surface Minerals. In AAS/Division for Planetary Sciences Meeting Abstracts \#26, 26.
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Presentations
- Scheeres, D. J., Margot, J. L., Magri, C., Lauretta, D. S., Kerr, R., Howell, E. S., Giorgini, J. D., Benner, L. A., & Nolan, M. C. (2017, December). Radar Observations of Asteroid 101955 Bennu and the OSIRIS-REx Sample Return Mission. 2017 Fall Meeting, AGU. New Orleans, LA: AGU.
Others
- Rivkin, A. S., Howell, E. S., Pope, B., Thomas, C. A., & Vervack, R. (2021). Analysis of Low-Albedo Asteroids Observed through JWST Guaranteed Time.
- {Howell}, E. (1995). Probing Asteroid Composition Using Visible and Near-Infrared Spectroscopy.