Current Grants

• A Multi-spacecraft Approach to Understand the Spectral and Temporal Evolution in Large Solar Energetic Particle Events, NASA Living With a Star Program, Co-Investigator
• High-Energy Particle Acceleration by Extreme Coronal Shocks, NASA Living With a Star Program, Co-Investigator
• Tracking Mechanisms Efficiently Accelerating Charged Particles at Shocks at Multiple Heliospheric Distances out to 1.5AU, NASA Living With a Star Program, Co-Investigator
• Integrated Science Investigation of the Sun for NASA's Parker Solar Probe Mission, Co-Investigator
• Collaborative Research: Electron Acceleration and Emissions from the Solar Flare Termination Shock, National Science Foundation, Division of Atmospheric and Geospace sciences, Co-Investigator
• NASA's Interstellar Mapping and Acceleration Probe (IMAP), Co-Investigator
• Collaborative Research: Transport Processes Affecting High-Energy Solar Energetic Particles Observed at Earth, National Science Foundation, Division of Atmospheric and Geospace Sciences, Principal Investigator
• "Our Heliospheric Shield" a NASA Drive Center, Co-Investigator
• Numerical Modeling of SEP Acceleration at Evolving Coronal Shocks, NASA/Goddard, Principal Investigator
• Energetics of Solar Eruptions from the Chromosphere to the Inner Heliosphere, NASA Systems Observatory Connect Program, Co-Investigator

Current Spacecraft Involvement

• Solar Orbiter, Magnetometer Instrument, Co-Investigator
• Interstellar Mapping and Acceleration Probe (IMAP), Co-Investigator
• Parker Solar Probe, Integrated Science Investigation of the Sun (IS☉IS) instrument, Co-Investigator
• Advanced Composition Explorer
• Voyagers 1 & 2

Former Spacecraft Involvement

• Ulysses

Current Graduate Students

Former Students

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

Current Postdocs

• Ashraf Moradi

Former Postdocs

• Federico Fraschetti
• Vincent Luo
• David Smith

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

Recent refereed publications (NASA ADS): Years 2019 through 2021

Pecora, F., Servidio, S., Greco, A., Matthaeus, W. H., McComas, D. J., Giacalone, J., Joyce, C. J., Getachew, T., Cohen, C. M. S., Leske, R. A., Wiedenbeck, M. E., McNutt, R. L., Hill, M. E., Mitchell, D. G., Christian, E. R., Roelof, E. C., Schwadron, N. A., & Bale, S. D. 2021, Monthly Notices of the Royal Astronomical Society. Parker Solar Probe observations of helical structures as boundaries for energetic particles

Opher, M., Drake, J. F., Zank, G., Powell, E., Shelley, W., Kornbleuth, M., Florinski, V., Izmodenov, V., Giacalone, J., Fuselier, S., Dialynas, K., Loeb, A., & Richardson, J. 2021, The Astrophysical Journal. A Turbulent Heliosheath Driven by the Rayleigh-Taylor Instability

Mason, G. M., Cohen, C. M. S., Ho, G. C., Mitchell, D. G., Allen, R. C., Hill, M. E., Andrews, G. B., Berger, L., Boden, S., Böttcher, S., Cernuda, I., Christian, E. R., Cummings, A. C., Davis, A. J., Desai, M. I., de Nolfo, G. A., Eldrum, S., Elftmann, R., Kollhoff, A., Giacalone, J., Gómez-Herrero, R., Hayes, J., Janitzek, N. P., Joyce, C. J., Korth, A., Kühl, P., Kulkarni, S. R., Labrador, A. W., Espinosa Lara, F., Lees, W. J., Leske, R. A., Mall, U., Martin, C., Martínez Hellín, A., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, J. G., Pacheco, D., Parra Espada, P., Prieto, M., Rankin, J. S., Ravanbakhsh, A., Rodríguez-Pacheco, J., Rodríguez Polo, O., Roelof, E. C., Sánchez-Prieto, S., Schlemm, C. E., Schwadron, N. A., Seifert, H., Stone, E. C., Szalay, J. R., Terasa, J. C., Tyagi, K., Freiherr von Forstner, J. L., Wiedenbeck, M. E., Wimmer-Schweingruber, R. F., Xu, Z. G., & Yedla, M. 2021, Astronomy and Astrophysics. Solar energetic particle heavy ion properties in the widespread event of 2020 November 29

Cohen, C. M. S., Christian, E. R., Cummings, A. C., Davis, A. J., Desai, M. I., de Nolfo, G. A., Giacalone, J., Hill, M. E., Joyce, C. J., Labrador, A. W., Leske, R. A., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Mitchell, J. G., Rankin, J. S., Roelof, E. C., Schwadron, N. A., Stone, E. C., Szalay, J. R., Wiedenbeck, M. E., Vourlidas, A., Bale, S. D., Pulupa, M., & MacDowall, R. J. 2021, Astronomy and Astrophysics. PSP/IS⊙IS observations of the 29 November 2020 solar energetic particle event

Esman, T. M., Espley, J., Gruesbeck, J., Klein, K. G., & Giacalone, J. 2021, Journal of Geophysical Research (Space Physics). Plasma Waves in the Distant Martian Environment: Implications for Mars' Sphere of Influence

Giacalone, J., Burgess, D., Bale, S. D., Desai, M. I., Mitchell, J. G., Lario, D., Chen, C. H. K., Christian, E. R., de Nolfo, G. A., Hill, M. E., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mitchell, D. G., Roelof, E. C., Schwadron, N. A., Getachew, Tibebu, & Joyce, C. J. 2021, The Astrophysical Journal. Energetic Particles Associated with a Coronal Mass Ejection Shock Interacting with a Convected Magnetic Structure

Lario, D., Richardson, I. G., Palmerio, E., Lugaz, N., Bale, S. D., Stevens, M. L., Cohen, C. M. S., Giacalone, J., Mitchell, D. G., Szabo, A., Nieves-Chinchilla, T., Wilson, L. B., Christian, E. R., Hill, M. E., McComas, D. J., McNutt, R. L., Schwadron, N. A., & Wiedenbeck, M. E. 2021, The Astrophysical Journal. Comparative Analysis of the 2020 November 29 Solar Energetic Particle Event Observed by Parker Solar Probe

Richardson, J. D., Cummings, A. C., Burlaga, L. F., Giacalone, J., Opher, M., & Stone, E. C. 2021, The Astrophysical Journal. Using Magnetic Flux Conservation to Determine Heliosheath Speeds

Mitchell, J. G., De Nolfo, G. A., Hill, M. E., Christian, E. R., Richardson, I. G., McComas, D. J., McNutt, R. L., Mitchell, D. G., Schwadron, N. A., Bale, S. D., Giacalone, J., Joyce, C. J., Niehof, J. T., & Szalay, J. R. 2021, The Astrophysical Journal. Energetic Electron Observations by Parker Solar Probe/IS⊙IS during the First Widespread SEP Event of Solar Cycle 25 on 2020 November 29

Joyce, C. J., McComas, D. J., Schwadron, N. A., Vourlidas, A., Christian, E. R., McNutt, R. L., Cohen, C. M. S., Leske, R. A., Mewaldt, R. A., Stone, E. C., Mitchell, D. G., Hill, M. E., Roelof, E. C., Allen, R. C., Szalay, J. R., Rankin, J. S., Desai, M. I., Giacalone, J., Matthaeus, W. H., Niehof, J. T., de Wet, W., Winslow, R. M., Bale, S. D., & Kasper, J. C. 2021, Astronomy and Astrophysics. Energetic particle evolution during coronal mass ejection passage from 0.3 to 1 AU

Joyce, C. J., McComas, D. J., Schwadron, N. A., Christian, E. R., Wiedenbeck, M. E., McNutt, R. L., Cohen, C. M. S., Leske, R. A., Mewaldt, R. A., Stone, E. C., Labrador, A. W., Davis, A. J., Cummings, A. C., Mitchell, D. G., Hill, M. E., Roelof, E. C., Allen, R. C., Szalay, J. R., Rankin, J. S., Desai, M. I., Giacalone, J., Matthaeus, W. H., Bale, S. D., & Kasper, J. C. 2021, Astronomy and Astrophysics. Time evolution of stream interaction region energetic particle spectra in the inner heliosphere

Bandyopadhyay, R., Matthaeus, W. H., McComas, D. J., Joyce, C. J., Szalay, J. R., Christian, E. R., Giacalone, J., Schwadron, N. A., Mitchell, D. G., Hill, M. E., McNutt, R. L., Desai, M. I., Bale, S. D., Bonnell, J. W., Dudok de Wit, T., Goetz, K., Harvey, P. R., MacDowall, R. J., Malaspina, D. M., Pulupa, M., Kasper, J. C., & Stevens, M. 2021, Astronomy and Astrophysics. Energetic particle behavior in near-Sun magnetic field switchbacks from PSP

Chhiber, R., Matthaeus, W. H., Cohen, C. M. S., Ruffolo, D., Sonsrettee, W., Tooprakai, P., Seripienlert, A., Chuychai, P., Usmanov, A. V., Goldstein, M. L., McComas, D. J., Leske, R. A., Szalay, J. R., Joyce, C. J., Cummings, A. C., Roelof, E. C., Christian, E. R., Mewaldt, R. A., Labrador, A. W., Giacalone, J., Schwadron, N. A., Mitchell, D. G., Hill, M. E., Wiedenbeck, M. E., McNutt, R. L., & Desai, M. I. 2021, Astronomy and Astrophysics. Magnetic field line random walk and solar energetic particle path lengths. Stochastic theory and PSP/IS⊙IS observations

Schwadron, N. A., Joyce, C. J., Aly, A., Cohen, C. M. S., Desai, M. I., McComas, D. J., Niehof, J. T., Möbius, E., Lee, M., Bower, J., Bale, S., Case, A., Christian, E. R., Davis, A. J., de Wet, W., Goetz, K., Giacalone, J., Hill, M. E., Allen, R., Kasper, J. C., Korreck, K., Leske, R. A., Malandraki, O., Matthaeus, W. H., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Pulupa, M., Rankin, J. S., Roelof, E. C., Stone, E. C., Szalay, J. R., & Wiedenbeck, M. E. 2021, Astronomy and Astrophysics. A new view of energetic particles from stream interaction regions observed by Parker Solar Probe

Cohen, C. M. S., Christian, E. R., Cummings, A. C., Davis, A. J., Desai, M. I., de Nolfo, G. A., Giacalone, J., Hill, M. E., Joyce, C. J., Labrador, A. W., Leske, R. A., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Mitchell, J. G., Rankin, J. S., Roelof, E. C., Schwadron, N. A., Stone, E. C., Szalay, J. R., Wiedenbeck, M. E., Vourlidas, A., Bale, S. D., Pulupa, M., & MacDowall, R. J. 2021, Astronomy and Astrophysics. Parker Solar Probe observations of He/H abundance variations in SEP events inside 0.5 au

Giacalone, J. 2021, The Astrophysical Journal The Transport Equation for the Dispersal of Passive Tracers in a Nonuniform Turbulent Fluid: Numerical Simulations

Giacalone, J., Nakanotani, M., Zank, G. P., Kòta, J., Opher, M., Richardson, J. D. 2021, The Astrophysical Journal Hybrid Simulations of Interstellar Pickup Protons Accelerated at the Solar-wind Termination Shock at Multiple Locations

Guo, F., Giacalone, J., Zhao, L. 2021, Frontiers in Astronomy and Space Sciences Shock Propagation and Associated Particle Acceleration in the Presence of Ambient Solar-Wind Turbulence

Fraschetti, F. & Giacalone, J. 2020, Monthly Notices of the Royal Astronomical Society. Bi-directional streaming of particles accelerated at the STEREO-A shock on 2008 March 9

Kong, Xiangliang, Guo, Fan, Shen, Chengcai, Chen, Bin, Chen, Yao, & Giacalone, Joe 2020, The Astrophysical Journal. Dynamical Modulation of Solar Flare Electron Acceleration due to Plasmoid-shock Interactions in the Looptop Region

Nakanotani, M., Zank, G. P., Adhikari, L., Zhao, L. -L., Giacalone, J., Opher, M., & Richardson, J. D. 2020, The Astrophysical Journal. The Downwind Solar Wind: Model Comparison with Pioneer 10 Observations

Horbury, T. S., O'Brien, H., Carrasco Blazquez, I., Bendyk, M., Brown, P., Hudson, R., Evans, V., Oddy, T. M., Carr, C. M., Beek, T. J., Cupido, E., Bhattacharya, S., Dominguez, J. -A., Matthews, L., Myklebust, V. R., Whiteside, B., Bale, S. D., Baumjohann, W., Burgess, D., Carbone, V., Cargill, P., Eastwood, J., Erdös, G., Fletcher, L., Forsyth, R., Giacalone, J., Glassmeier, K. -H., Goldstein, M. L., Hoeksema, T., Lockwood, M., Magnes, W., Maksimovic, M., Marsch, E., Matthaeus, W. H., Murphy, N., Nakariakov, V. M., Owen, C. J., Owens, M., Rodriguez-Pacheco, J., Richter, I., Riley, P., Russell, C. T., Schwartz, S., Vainio, R., Velli, M., Vennerstrom, S., Walsh, R., Wimmer-Schweingruber, R. F., Zank, G., Müller, D., Zouganelis, I., & Walsh, A. P. 2020, Astronomy and Astrophysics. The Solar Orbiter magnetometer

Giacalone, J. 2020, The Astrophysical Journal. Erratum: "The Acceleration of Charged Particles at a Spherical Shock Moving through an Irregular Magnetic Field" (2017, ApJ, 848, 123)

Giacalone, J. & Jokipii, J. R. 2020, The Astrophysical Journal. Erratum: "A New Model for the Heliosphere's 'IBEX Ribbon'" (2017, ApJL, 812, L9)

Dalla, S., de Nolfo, G. A., Bruno, A., Giacalone, J., Laitinen, T., Thomas, S., Battarbee, M., & Marsh, M. S. 2020, Astronomy and Astrophysics. 3D propagation of relativistic solar protons through interplanetary space

Hill, M. E., Mitchell, D. G., Allen, R. C., de Nolfo, G. A., Vourlidas, A., Brown, L. E., Jones, S. I., McComas, D. J., McNutt, R. L., Mitchell, J. G., Szalay, J. R., Wallace, S., Arge, C. N., Christian, E. R., Cohen, C. M. S., Crew, A. B., Desai, M. I., Giacalone, J., Henney, C. J., Joyce, C. J., Krimigis, S. M., Leske, R. A., Mewaldt, R. A., Nelson, K. S., Roelof, E. C., Schwadron, N. A., & Wiedenbeck, M. E. 2020, The Astrophysical Journal Supplement Series. Small, Low-energy, Dispersive Solar Energetic Particle Events Observed by Parker Solar Probe

Nieves-Chinchilla, Teresa, Szabo, Adam, Korreck, Kelly E., Alzate, Nathalia, Balmaceda, Laura A., Lavraud, Benoit, Paulson, Kristoff, Narock, Ayris A., Wallace, Samantha, Jian, Lan K., Luhmann, Janet G., Morgan, Huw, Higginson, Aleida, Arge, Charles N., Bale, Stuart D., Case, Anthony W., Dudfok de Wit, Thierry, Giacalone, Joe, Goetz, Keith, Harvey, Peter R., Jones-Melosky, Shaela I., Kasper, J. C., Larson, Davin E., Livi, Roberto, McComas, David J., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Raouafi, Nour E., Schwadron, Nathan, Stevens, Michael Louis, & Whittlesey, Phyllis L. 2020, The Astrophysical Journal Supplement Series. Analysis of the Internal Structure of the Streamer Blowout Observed by the Parker Solar Probe During the First Solar Encounter

Bandyopadhyay, Riddhi, Matthaeus, W. H., Parashar, T. N., Chhiber, R., Ruffolo, D., Goldstein, M. L., Maruca, B. A., Chasapis, A., Qudsi, R., McComas, D. J., Christian, E. R., Szalay, J. R., Joyce, C. J., Giacalone, J., Schwadron, N. A., Mitchell, D. G., Hill, M. E., Wiedenbeck, M. E., McNutt, R. L., Desai, M. I., Bale, Stuart D., Bonnell, J. W., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc, Velli, M., Kasper, J. C., Korreck, K. E., Stevens, M., Case, A. W., & Raouafi, N. 2020, The Astrophysical Journal Supplement Series. Observations of Energetic-particle Population Enhancements along Intermittent Structures near the Sun from the Parker Solar Probe

Mitchell, D. G., Giacalone, J., Allen, R. C., Hill, M. E., McNutt, R. L., McComas, D. J., Szalay, J. R., Schwadron, N. A., Rouillard, A. P., Bale, S. B., Chaston, C. C., Pulupa, M. P., Whittlesey, P. L., Kasper, J. C., MacDowall, R. J., Christian, E. R., Wiedenbeck, M. E., & Matthaeus, W. H. 2020, The Astrophysical Journal Supplement Series. CME-associated Energetic Ions at 0.23 au: Consideration of the Auroral Pressure Cooker Mechanism Operating in the Low Corona as a Possible Energization Process

Desai, M. I., Mitchell, D. G., Szalay, J. R., Roelof, E. C., Giacalone, J., Hill, M. E., McComas, D. J., Christian, E. R., Schwadron, N. A., McNutt, R. L., Wiedenbeck, M. E., Joyce, C., Cohen, C. M. S., Ebert, R. W., Dayeh, M. A., Allen, R. C., Davis, A. J., Krimigis, S. M., Leske, R. A., Matthaeus, W. H., Malandraki, O., Mewaldt, R. A., Labrador, A., Stone, E. C., Bale, S. D., Pulupa, M., MacDowall, R. J., & Kasper, J. C. 2020, The Astrophysical Journal Supplement Series. Properties of Suprathermal-through-energetic He Ions Associated with Stream Interaction Regions Observed over the Parker Solar Probe's First Two Orbits

Wiedenbeck, M. E., Bučík, R., Mason, G. M., Ho, G. C., Leske, R. A., Cohen, C. M. S., Christian, E. R., Cummings, A. C., Davis, A. J., Desai, M. I., Giacalone, J., Haggerty, D. K., Hill, M. E., Joyce, C. J., Labrador, A. W., Malandraki, O., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Posner, A., Rankin, J. S., Roelof, E. C., Schwadron, N. A., Stone, E. C., Szalay, J. R., Bale, S. D., Case, A. W., Kasper, J. C., Korreck, K. E., Larson, D. E., MacDowall, R. J., Pulupa, M., & Stevens, M. L. 2020, The Astrophysical Journal Supplement Series. <SUP>3</SUP>He-rich Solar Energetic Particle Observations at the Parker Solar Probe and near Earth

Joyce, C. J., McComas, D. J., Christian, E. R., Schwadron, N. A., Wiedenbeck, M. E., McNutt, R. L., Cohen, C. M. S., Leske, R. A., Mewaldt, R. A., Stone, E. C., Labrador, A. W., Davis, A. J., Cummings, A. C., Mitchell, D. G., Hill, M. E., Roelof, E. C., Szalay, J. R., Rankin, J. S., Desai, M. I., Giacalone, J., & Matthaeus, W. H. 2020, The Astrophysical Journal Supplement Series. Energetic Particle Observations from the Parker Solar Probe Using Combined Energy Spectra from the IS☉IS Instrument Suite

Leske, R. A., Christian, E. R., Cohen, C. M. S., Cummings, A. C., Davis, A. J., Desai, M. I., Giacalone, J., Hill, M. E., Joyce, C. J., Krimigis, S. M., Labrador, A. W., Malandraki, O., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Posner, A., Rankin, J. S., Roelof, E. C., Schwadron, N. A., Stone, E. C., Szalay, J. R., Wiedenbeck, M. E., Vourlidas, A., Bale, S. D., MacDowall, R. J., Pulupa, M., Kasper, J. C., Allen, R. C., Case, A. W., Korreck, K. E., Livi, R., Stevens, M. L., Whittlesey, P., & Poduval, B. 2020, The Astrophysical Journal Supplement Series. Observations of the 2019 April 4 Solar Energetic Particle Event at the Parker Solar Probe

Schwadron, N. A., Bale, S., Bonnell, J., Case, A., Christian, E. R., Cohen, C. M. S., Cummings, A. C., Davis, A. J., Dudok de Wit, T., de Wet, W., Desai, M. I., Joyce, C. J., Goetz, K., Giacalone, J., Gorby, M., Harvey, P., Heber, B., Hill, M. E., Karavolos, M., Kasper, J. C., Korreck, K., Larson, D., Livi, R., Leske, R. A., Malandraki, O., MacDowall, R., Malaspina, D., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Mays, L., Niehof, J. T., Odstrcil, D., Pulupa, M., Poduval, B., Rankin, J. S., Roelof, E. C., Stevens, M., Stone, E. C., Szalay, J. R., Wiedenbeck, M. E., Winslow, R., & Whittlesey, P. 2020, The Astrophysical Journal Supplement Series. Seed Population Preconditioning and Acceleration Observed by the Parker Solar Probe

Giacalone, J., Mitchell, D. G., Allen, R. C., Hill, M. E., McNutt, R. L., Szalay, J. R., Desai, M. I., Rouillard, A. P., Kouloumvakos, A., McComas, D. J., Christian, E. R., Schwadron, N. A., Wiedenbeck, M. E., Bale, S., Brown, L. E., Case, A., Chen, X., Cohen, C. M. S., Joyce, C., Kasper, J. C., Klein, K. G., Korreck, K., Larson, D. E., Livi, R., Leske, R. A., MacDowall, R. J., Matthaeus, W. H., Mewaldt, R. A., Nieves-Chinchilla, T., Pulupa, M., Roelof, E. C., Stevens, M. L., Szabo, A., & Whittlesey, P. L. 2020, The Astrophysical Journal Supplement Series. Solar Energetic Particles Produced by a Slow Coronal Mass Ejection at ∼0.25 au

Cohen, C. M. S., Christian, E. R., Cummings, A. C., Davis, A. J., Desai, M. I., Giacalone, J., Hill, M. E., Joyce, C. J., Labrador, A. W., Leske, R. A., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Rankin, J. S., Roelof, E. C., Schwadron, N. A., Stone, E. C., Szalay, J. R., Wiedenbeck, M. E., Allen, R. C., Ho, G. C., Jian, L. K., Lario, D., Odstrcil, D., Bale, S. D., Badman, S. T., Pulupa, M., MacDowall, R. J., Kasper, J. C., Case, A. W., Korreck, K. E., Larson, D. E., Livi, Roberto, Stevens, M. L., & Whittlesey, Phyllis 2020, The Astrophysical Journal Supplement Series. Energetic Particle Increases Associated with Stream Interaction Regions

Zirnstein, E. J., Giacalone, J., Kumar, R., McComas, D. J., Dayeh, M. A., & Heerikhuisen, J. 2020, The Astrophysical Journal. Turbulence in the Local Interstellar Medium and the IBEX Ribbon

McComas, D. J., Christian, E. R., Cohen, C. M. S., Cummings, A. C., Davis, A. J., Desai, M. I., Giacalone, J., Hill, M. E., Joyce, C. J., Krimigis, S. M., Labrador, A. W., Leske, R. A., Malandraki, O., Matthaeus, W. H., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Posner, A., Rankin, J. S., Roelof, E. C., Schwadron, N. A., Stone, E. C., Szalay, J. R., Wiedenbeck, M. E., Bale, S. D., Kasper, J. C., Case, A. W., Korreck, K. E., MacDowall, R. J., Pulupa, M., Stevens, M. L., & Rouillard, A. P. 2019, Nature. Probing the energetic particle environment near the Sun

Kong, Xiangliang, Guo, Fan, Shen, Chengcai, Chen, Bin, Chen, Yao, Musset, Sophie, Glesener, Lindsay, Pongkitiwanichakul, Peera, & Giacalone, Joe 2019, The Astrophysical Journal. The Acceleration and Confinement of Energetic Electrons by a Termination Shock in a Magnetic Trap: An Explanation for Nonthermal Loop-top Sources during Solar Flares

Wang, Xin, Giacalone, Joe, Yan, Yihua, Ding, Mingde, Li, Chuan, Lu, Hong, & Shan, Hao 2019, The Astrophysical Journal. Particle Acceleration at the Pileup Collision of the Twin Shock

Kong, Xiangliang, Guo, Fan, Chen, Yao, & Giacalone, Joe 2019, The Astrophysical Journal. The Acceleration of Energetic Particles at Coronal Shocks and Emergence of a Double Power-law Feature in Particle Energy Spectra

de Nolfo, G. A., Bruno, A., Ryan, J. M., Dalla, S., Giacalone, J., Richardson, I. G., Christian, E. R., Stochaj, S. J., Bazilevskaya, G. A., Boezio, M., Martucci, M., Mikhailov, V. V., & Munini, R. 2019, The Astrophysical Journal. Comparing Long-duration Gamma-Ray Flares and High-energy Solar Energetic Particles

Lario, D., Berger, L., Decker, R. B., Wimmer-Schweingruber, R. F., Wilson, L. B., Giacalone, J., & Roelof, E. C. 2019, The Astronomical Journal. Evolution of the Suprathermal Proton Population at Interplanetary Shocks