EGU23-9578, updated on 26 Feb 2023
https://doi.org/10.5194/egusphere-egu23-9578
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Observations by Parker Solar Probe of a 3He-rich Solar Energetic Particle Event at 14 RS

Christina Cohen1 and the ISOIS/FIELDS/SWEAP/WISPR study team*
Christina Cohen and the ISOIS/FIELDS/SWEAP/WISPR study team
  • 1California Institute of Technology, Pasadena, CA 91125, USA
  • *A full list of authors appears at the end of the abstract

Just after orbit 12 closest approach, on 2 June 2022 at a distance of 14 RS, the Integrated Science Investigation of the Sun (ISʘIS) observed a 3He-rich solar energetic particle (SEP) event.  The event was associated with an active region just over the east limb (as viewed from Earth), which erupted with an occulted C1.2 class x-ray flare and a coronal mass ejection (CME) traveling ~350 km/s.  PSP observed a type III radio burst associated with the flare, followed by a type III storm.  After the initial dispersive SEP event, ISʘIS observed a second enhancement of energetic particles contained within the associated CME as it passed over the spacecraft.  Comparisons of these two populations provide information regarding the acceleration of particles at the Sun as well as trapping or acceleration within the CME structure as different components of an individual solar event.

ISOIS/FIELDS/SWEAP/WISPR study team:

C.M.S. Cohen1, E. R. Christian2, A. C. Cummings1, G. A. de Nolfo2, M. I. Desai3,4, J. Giacalone5, M. E. Hill6, A. W. Labrador1, R. A. Leske1, D. J. McComas7, R. L. McNutt Jr.6, R. A. Mewaldt1, D. G. Mitchell6, J. G. Mitchell2, J. S. Rankin7, N. A. Schwadron7,8, T. Sharma7, M. M. Shen7, J. R. Szalay7, M. E. Wiedenbeck9, C. Braga10, S. D. Bale11, M. Pulupa11, J. C. Kasper12, D. E. Larson11, R. Livi11, P. Whittlesey11 1 California Institute of Technology, Pasadena, CA 91125, USA 2 Goddard Space Flight Center, Greenbelt, MD 20771, USA 3 Southwest Research Institute, San Antonio, TX 78228, USA 4 University of Texas at San Antonio, San Antonio, TX 78249, USA 5 University of Arizona, Tucson, AZ 85721, USA 6 Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA 7 Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA 8 University of New Hampshire, Durham, NH 03824, USA 9 Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA 10 George Mason University, Fairfax, VA 22030, USA 11 University of California at Berkeley, Berkeley, CA 94720, USA 12 University of Michigan, Ann Arbor, MI 48109, USA

How to cite: Cohen, C. and the ISOIS/FIELDS/SWEAP/WISPR study team: Observations by Parker Solar Probe of a 3He-rich Solar Energetic Particle Event at 14 RS, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-9578, https://doi.org/10.5194/egusphere-egu23-9578, 2023.