PTYS/LPL Faculty

Joe Giacalone

Solar and heliospheric physics, Astrophysics, Theoretical astrophysics
Ph.D. 1991, University of Kansas

520-626-8365 ∙ 520-743-4080
Kuiper 411

Years with LPL: 1993 to present


Dr. Giacalone's core research interests include understanding the origin, acceleration, and propagation of cosmic rays, and other charged-particle species in the magnetic fields of space, and general topics in space plasma physics, and astrophysics.

He develops physics-based theoretical and computational models which are used to interpret in situ spacecraft observations. He is interested in the general properties of solar, interplanetary, and galactic magnetic fields.

Currently, he is studying the origin of large solar-energetic particle events (a.k.a. solar cosmic rays) which involves a number of diverse aspects of solar physics and space physics. He has written papers describing the propagation of solar-flare particles from the Sun to the Earth where they are observed by spacecraft such as ACE, Ulysses, Wind, etc.

He is also interested in the general topic of particle acceleration in astrophysical plasmas.

Current Grants

  • Integrated Science Investigation of the Sun: NASA's Parker Solar Probe mission; Co-Investigator, member of the Theory and Modeling team
  • Analysis of spacecraft observations and numerical modeling of solar energetic particles associated with strong interplanetary shocks, NASA Heliophysics Supporting Research Program
  • Collaborative Research: Electron Acceleration and Emissions from the Solar Flare Termination Shock, National Science Foundation, Division of Atmospheric and Geospace sciences

Current Spacecraft Involvement

Former Spacecraft Involvement

  • Ulysses

Current PTYS Graduate Students

Student Collaborations/Advising

Former Students

  • Thomas Schad, 2013 (Ph.D. PTYS)
  • Fan Guo, 2012 (Ph.D. PTYS)
  • Eileen Chollet, 2008 (Ph.D. PTYS)

Former Postdocs

  • Federico Fraschetti
  • Vincent Luo
  • David Smith


Complete publications list available from: NASA ADS Author search: Joe Giacalone

Refereed publications (NASA ADS): Calendar Year 2016 through July 2018

Kong, X., Guo, F., Giacalone, J., Li, H., Chen, Y.  The Acceleration of High-energy Protons at Coronal Shocks: The Effect of Large-scale Streamer-like Magnetic Field Structures 2017ApJ...851...38K

Giacalone, J.  The Acceleration of Charged Particles at a Spherical Shock Moving through an Irregular Magnetic Field 2017ApJ...848..123G

Wang, X., Giacalone, J., Yan, Y., Ding, M., Wang, N., Shan, H.  Particle Acceleration in Two Converging Shocks 2017ApJ...842...74W

McComas, D. J., Alexander, N., Angold, N., Bale, S., Beebe, C., Birdwell, B., Boyle, M., Burgum, J. M., Burnham, J. A., Christian, E. R., Cook, W. R., Cooper, S. A., Cummings, A. C., Davis, A. J., Desai, M. I., Dickinson, J., Dirks, G., Do, D. H., Fox, N., Giacalone, J., Gold, R. E., Gurnee, R. S., Hayes, J. R., Hill, M. E., Kasper, J. C., Kecman, B., Klemic, J., Krimigis, S. M., Labrador, A. W., Layman, R. S., Leske, R. A., Livi, S., Matthaeus, W. H., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Nelson, K. S., Parker, C., Rankin, J. S., Roelof, E. C., Schwadron, N. A., Seifert, H., Shuman, S., Stokes, M. R., Stone, E. C., Vandegriff, J. D., Velli, M., von Rosenvinge, T. T., Weidner, S. E., Wiedenbeck, M. E., Wilson, P.  Integrated Science Investigation of the Sun (ISIS): Design of the Energetic Particle Investigation 2016SSRv..204..187M

Desai, M., Giacalone, J.  Large gradual solar energetic particle events 2016LRSP...13....3D

Sun, P., Jokipii, J. R., Giacalone, J.  Pitch-angle Scattering of Energetic Charged Particles in Nearly Constant Magnitude Magnetic Turbulence 2016ApJ...827...16S

Riley, P., Caplan, R. M., Giacalone, J., Lario, D., Liu, Y.  Properties of the Fast Forward Shock Driven by the July 23 2012 Extreme Coronal Mass Ejection 2016ApJ...819...57R

Neugebauer, M., Giacalone, J.  Energetic particles, tangential discontinuities, and solar flux tubes 2015JGRA..120.8281N

Giacalone, J., Jokipii, J. R.  A New Model for the Heliosphere’s “IBEX Ribbon” 2015ApJ...812L...9G

Tessein, J. A., Ruffolo, D., Matthaeus, W. H., Wan, M., Giacalone, J., Neugebauer, M.  Effect of Coherent Structures on Energetic Particle Intensity in the Solar Wind at 1 AU 2015ApJ...812...68T

Giacalone, J., Hood, L. L.  Hybrid simulation of the interaction of solar wind protons with a concentrated lunar magnetic anomaly 2015JGRA..120.4081G

Fraschetti, F., Giacalone, J.  Localized enhancements of energetic particles at oblique collisionless shocks 2015MNRAS.448.3555F

Guo, F., Giacalone, J.  The Acceleration of Electrons at Collisionless Shocks Moving Through a Turbulent Magnetic Field 2015ApJ...802...97G

Giacalone, J.  Diffusive Shock Acceleration of High-energy Charged Particles at Fast Interplanetary Shocks: A Parameter Survey 2015ApJ...799...80G

Available filesSizeCreated
PDF icon Giacalone-CV-081318.pdf270.57 KBAugust 13, 2018
Semester Course Day/Time Location Resources
Spring 2018 PTYS 558-001 MW 9:30 - 10:45a.m. Kuiper 312 Syllabus
Course Page
Fall 2018 PTYS 505A-001 MW 9:30-10:45a.m. Kuiper 312 Syllabus
Course Page
Spring 2019 PTYS 503-001
Spring 2019 PTYS 403-001
Fall 2020 PTYS 505A-001
Spring 2021 PTYS 503-001
Spring 2021 PTYS 403-001

Last updated on August 13, 2018