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Samuel E Gralla

  • Associate Professor, Physics
  • Member of the Graduate Faculty
Contact
  • (520) 621-6809
  • Physics-Atmospheric Sciences, Rm. 254
  • Tucson, AZ 85721
  • sgralla@arizona.edu
  • Bio
  • Interests
  • Courses
  • Scholarly Contributions

Awards

  • IUPAP Young Scientist Prize in General Relativity and Gravitation
    • International Union of Pure and Applied Sciences, Sec A2: The International Society on General Relativity and Gravitation, Spring 2018

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Interests

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Courses

2025-26 Courses

  • Analytical Mechanics
    PHYS 511 (Fall 2025)

2024-25 Courses

  • Honors Thesis
    PHYS 498H (Spring 2025)
  • Independent Study
    PHYS 599 (Spring 2025)
  • Intro General Relativity
    PHYS 569 (Spring 2025)
  • Analytical Mechanics
    PHYS 511 (Fall 2024)
  • Honors Thesis
    PHYS 498H (Fall 2024)
  • Independent Study
    PHYS 599 (Fall 2024)

2023-24 Courses

  • Dissertation
    PHYS 920 (Spring 2024)
  • Independent Study
    PHYS 599 (Spring 2024)
  • Intro General Relativity
    PHYS 569 (Spring 2024)
  • Analytical Mechanics
    PHYS 511 (Fall 2023)
  • Directed Research
    ASTR 492 (Fall 2023)
  • Dissertation
    PHYS 920 (Fall 2023)
  • Independent Study
    PHYS 499 (Fall 2023)
  • Independent Study
    PHYS 599 (Fall 2023)

2022-23 Courses

  • Directed Research
    PHYS 492 (Spring 2023)
  • Dissertation
    PHYS 920 (Spring 2023)
  • Intro General Relativity
    PHYS 569 (Spring 2023)
  • Directed Research
    ASTR 492 (Fall 2022)
  • Dissertation
    PHYS 920 (Fall 2022)

2021-22 Courses

  • Directed Research
    PHYS 492 (Spring 2022)
  • Dissertation
    PHYS 920 (Spring 2022)
  • Electricity+Magnetism I
    PHYS 331 (Spring 2022)
  • Dissertation
    PHYS 920 (Fall 2021)
  • Independent Study
    PHYS 399 (Fall 2021)
  • Independent Study
    PHYS 599 (Fall 2021)
  • Math Techniques:Physics
    PHYS 204 (Fall 2021)

2020-21 Courses

  • Dissertation
    PHYS 920 (Spring 2021)
  • Independent Study
    PHYS 599 (Spring 2021)
  • Intro General Relativity
    PHYS 569 (Spring 2021)
  • Analytical Mechanics
    PHYS 511 (Fall 2020)
  • Dissertation
    PHYS 920 (Fall 2020)
  • Independent Study
    PHYS 599 (Fall 2020)

2019-20 Courses

  • Dissertation
    PHYS 920 (Spring 2020)
  • Honors Thesis
    PHYS 498H (Spring 2020)
  • Independent Study
    PHYS 599 (Spring 2020)
  • Math Techniques:Physics
    PHYS 204 (Spring 2020)
  • Analytical Mechanics
    PHYS 511 (Fall 2019)
  • Dissertation
    PHYS 920 (Fall 2019)
  • Honors Thesis
    PHYS 498H (Fall 2019)
  • Independent Study
    PHYS 599 (Fall 2019)

2018-19 Courses

  • Dissertation
    PHYS 920 (Spring 2019)
  • Independent Study
    PHYS 599 (Spring 2019)
  • Intro General Relativity
    PHYS 569 (Spring 2019)
  • Dissertation
    PHYS 920 (Fall 2018)
  • Independent Study
    PHYS 599 (Fall 2018)
  • Math Techniques:Physics
    PHYS 204 (Fall 2018)

2017-18 Courses

  • Electricity+Magnetism I
    PHYS 331 (Spring 2018)
  • Independent Study
    PHYS 599 (Spring 2018)
  • Independent Study
    PHYS 599 (Fall 2017)

2016-17 Courses

  • Independent Study
    PHYS 599 (Spring 2017)
  • Intro General Relativity
    PHYS 569 (Spring 2017)
  • Analytical Mechanics
    PHYS 511 (Fall 2016)
  • Independent Study
    PHYS 599 (Fall 2016)

2015-16 Courses

  • Intro General Relativity
    PHYS 569 (Spring 2016)

Related Links

UA Course Catalog

Scholarly Contributions

Journals/Publications

  • Gralla, S. E. (2021). "Can the EHT M87 results be used to test general relativity?". prd, 103(2), 024023.
  • Armas, J., Cai, Y., Comp{`ere}, G., Garfinkle, D., & Gralla, S. E. (2020). "Consistent Blandford-Znajek expansion". jcap, 2020(4), 009.
  • Gralla, S. E. (2020). "Measuring the shape of a black hole photon ring". prd, 102(4), 044017.
  • Gralla, S. E., & Lupsasca, A. (2020). "Lensing by Kerr black holes". prd, 101(4), 044031.
  • Gralla, S. E., & Lupsasca, A. (2020). "Null geodesics of the Kerr exterior". prd, 101(4), 044032.
  • Gralla, S. E., & Lupsasca, A. (2020). "Observable shape of black hole photon rings". prd, 102(12), 124003.
  • Gralla, S. E., Lupsasca, A., & Marrone, D. P. (2020). "The shape of the black hole photon ring: A precise test of strong-field general relativity". prd, 102(12), 124004.
  • Gralla, S. E., Ravishankar, A., & Zimmerman, P. (2020). "Horizon instability of the extremal BTZ black hole". Journal of High Energy Physics, 2020(5), 94.
  • Gralla, S. E. (2019). Bosonization of strong-field pair plasma. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS.
  • Gralla, S. E., & Iqbal, N. (2019). Effective field theory of force-free electrodynamics. PHYSICAL REVIEW D, 99(10).
  • Gralla, S. E., Holz, D. E., & Wald, R. M. (2019). Black hole shadows, photon rings, and lensing rings. PHYSICAL REVIEW D, 100(2).
  • Lockhart, W., Gralla, S. E., Ozel, F., & Psaltis, D. (2019). X-ray light curves from realistic polar cap models: inclined pulsar magnetospheres and multipole fields. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 490(2), 1774-1783.
  • Gralla, S. E. (2018). On the ambiguity in relativistic tidal deformability. CLASSICAL AND QUANTUM GRAVITY, 35(8).
  • Gralla, S. E., & Zimmerman, P. (2018). Critical exponents of extremal Kerr perturbations. CLASSICAL AND QUANTUM GRAVITY, 35(9).
  • Gralla, S. E., & Zimmerman, P. (2018). Scaling and university in extremal black hole perturbaions. JOURNAL OF HIGH ENERGY PHYSICS.
  • Gralla, S. E., Lupsasca, A., & Strominger, A. (2018). Observational signature of high spin at the Event Horizon Telescope. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 475(3), 3829-3853.
  • Gralla, S. E., Ravishankar, A., & Zimmerman, P. (2018). Semi-local quantum criticality and the instability of extremal planar horizons. JOURNAL OF HIGH ENERGY PHYSICS.
  • Gralla, S. E., Lupsasca, A., & Philippov, A. (2017). Inclined Pulsar Magnetospheres in General Relativity: Polar Caps for the Dipole, Quadrudipole, and Beyond. ASTROPHYSICAL JOURNAL, 851(2).
  • Casals, M., Gralla, S. E., & Zimmerman, P. (2016). Horizon instability of extremal Kerr black holes: Nonaxisymmetric modes and enhanced growth rate. PHYSICAL REVIEW D, 94(6).
  • Compere, G., Gralla, S. E., & Lupsasca, A. (2016). Force-free foliations. PHYSICAL REVIEW D, 94(12).
  • Freytsis, M., & Gralla, S. E. (2016). QED plasma and magnetars. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS.
  • Gralla, S. E., & Zimmerman, P. (2016). Plasma waves and jets from moving conductors. PHYSICAL REVIEW D, 93(12).
  • Gralla, S. E., Hughes, S. A., & Warburton, N. (2016). Inspiral into Gargantua. CLASSICAL AND QUANTUM GRAVITY, 33(15).
  • Gralla, S. E., Lupsasca, A., & Philippov, A. (2016). PULSAR MAGNETOSPHERES: BEYOND THE FLAT SPACETIME DIPOLE. ASTROPHYSICAL JOURNAL, 833(2).
  • Gralla, S. E., Lupsasca, A., & Rodriguez, M. J. (2016). Electromagnetic jets from stars and black holes. PHYSICAL REVIEW D, 93(4).
  • Gralla, S. E., Lupsasca, A., & Strominger, A. (2016). Near-horizon Kerr magnetosphere. PHYSICAL REVIEW D, 93(10).
  • Gralla, S. E., Zimmerman, A., & Zimmerman, P. (2016). Transient instability of rapidly rotating black holes. PHYSICAL REVIEW D, 94(8).
  • Gralla, S. E., & Jacobson, T. (2015). Nonaxisymmetric Poynting jets. PHYSICAL REVIEW D, 92(4).
  • Gralla, S. E., Lupsasca, A., & Rodriguez, M. J. (2015). Note on bunching of field lines in black hole magnetospheres (vol 92, 044053, 2015). PHYSICAL REVIEW D, 92(6).
  • Gralla, S. E., Lupsasca, A., & Rodriguez, M. J. (2015). Note on bunching of field lines in black hole magnetospheres. PHYSICAL REVIEW D, 92(4).
  • Gralla, S. E., Porfyriadis, A. P., & Warburton, N. (2015). Particle on the innermost stable circular orbit of a rapidly spinning black hole. PHYSICAL REVIEW D, 92(6).
  • Brennan, T. D., & Gralla, S. E. (2014). On the magnetosphere of an accelerated pulsar. PHYSICAL REVIEW D, 89(10).
  • Gralla, S. E., & Jacobson, T. (2014). Spacetime approach to force-free magnetospheres. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 445(3), 2500-2534.
  • Brennan, T. D., Gralla, S. E., & Jacobson, T. (2013). Exact solutions to force-free electrodynamics in black hole backgrounds. CLASSICAL AND QUANTUM GRAVITY, 30(19).
  • Gralla, S. E. (2013). Mass, charge, and motion in covariant gravity theories. PHYSICAL REVIEW D, 87(10).
  • Gralla, S. E., & Herrmann, F. (2013). Hidden momentum and black hole kicks. CLASSICAL AND QUANTUM GRAVITY, 30(20).
  • Gralla, S. E., & Le, T. A. (2013). Thermodynamics of a black hole with moon. PHYSICAL REVIEW D, 88(4).
  • Gralla, S. E. (2012). Second-order gravitational self-force. PHYSICAL REVIEW D, 85(12).
  • Drivas, T. D., & Gralla, S. E. (2011). Dependence of self-force on central object. CLASSICAL AND QUANTUM GRAVITY, 28(14).
  • Gralla, S. E. (2011). Gauge and averaging in gravitational self-force. PHYSICAL REVIEW D, 84(8).
  • Gralla, S. E., & Wald, R. M. (2011). A note on the coordinate freedom in describing the motion of particles in general relativity. CLASSICAL AND QUANTUM GRAVITY, 28(17).
  • Gralla, S. E., & Wald, R. M. (2011). Derivation of Gravitational Self-Force. MASS AND MOTION IN GENERAL RELATIVITY, 162, 263-270.
  • Gralla, S. E. (2010). Motion of small bodies in classical field theory. PHYSICAL REVIEW D, 81(8).
  • Gralla, S. E., Harte, A. I., & Wald, R. M. (2010). Bobbing and kicks in electromagnetism and gravity. PHYSICAL REVIEW D, 81(10).
  • Gralla, S. E., Harte, A. I., & Wald, R. M. (2009). Rigorous derivation of electromagnetic self-force. PHYSICAL REVIEW D, 80(2).
  • Gralla, S. E., & Wald, R. M. (2008). A rigorous derivation of gravitational self-force. CLASSICAL AND QUANTUM GRAVITY, 25(20).

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