SH025-07
An in situ Type III radio burst observed by Parker Solar Probe
Thursday, 10 December 2020: 10:48
Virtual
Marc Pulupa1, Stuart D Bale1, John W Bonnell2, Anthony W Case3, Thierry Dudok de Wit4, Katherine Goodrich2, Keith Goetz5, Peter Harvey6, Justin Christophe Kasper7, Kelly E Korreck3, Davin E Larson8, Roberto Livi9, Robert J MacDowall10, Milan Maksimovic11, David Malaspina12, Michael Louis Stevens3 and Phyllis L Whittlesey9, (1)University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (2)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (3)Smithsonian Astrophysical Observatory, Cambridge, MA, United States, (4)LPC2E, CNRS and University of Orléans, Orléans, France, (5)University of Minnesota, School of Physics and Astronomy, Minneapolis, MN, United States, (6)Space Sciences Laboratory, Berkeley, United States, (7)University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, (8)Space Sciences Laboratory, Berkeley, CA, United States, (9)Space Sciences Laboratory, University of California Berkeley, Berkeley, CA, United States, (10)NASA/Goddard Space Flight Center, Greenbelt, United States, (11)LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, Meudon, France, (12)University of Colorado, Astrophysical and Planetary Sciences Department, Boulder, CO, United States
Abstract:
We present Parker Solar Probe observations of an in situ Type III radio burst. On 2020 May 27, during PSP's fifth encounter with the Sun, the PSP FIELDS/RFS radio receiver observed a Type III radio burst extending down to the local plasma frequency. Locally generated Langmuir waves are also present, apparent in the RFS spectral data and captured in high time resolution waveforms from the FIELDS/TDS and DFB receivers. We analyze the properties of the in situ waves and PSP SWEAP/SPAN observations of the electron beam associated with the Type III, and compare to previous measurements at 1 au.
