SH029-0026
Sources and Evolution of the Solar Wind Seen by Parker Solar Probe
Friday, 11 December 2020
Poster
Olga Panasenco1, Marco C M Velli2, Chen Shi3, Anna Tenerani4, Victor Réville5, Samuel Timothy Badman6, Stuart D Bale7, Raffaella D'Amicis8, Keith Goetz9, Peter Harvey10, Kelly E Korreck11, Davin E Larson12, Robert J MacDowall13, Marc Pulupa14, Jasper S Halekas15, Michael B Stevens11, Roberto Livi14 and Phyllis L Whittlesey14, (1)Advanced Heliophysics, Pasadena, CA, United States, (2)University of California Los Angeles, Los Angeles, CA, United States, (3)University of California Los Angeles, Earth, Planetary and Space Sciences, Los Angeles, CA, United States, (4)University of Texas, Austin, TX, United States, (5)IRAP, Toulouse, France, (6)University of California Berkeley, Berkeley, CA, United States, (7)University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (8)INAF-IAPS, Rome, Italy, (9)University of Minnesota, School of Physics and Astronomy, Minneapolis, MN, United States, (10)Space Sciences Laboratory, Berkeley, United States, (11)Smithsonian Astrophysical Observatory, Cambridge, MA, United States, (12)Space Sciences Laboratory, Berkeley, CA, United States, (13)NASA/Goddard Space Flight Center, Greenbelt, United States, (14)Space Sciences Laboratory, University of California Berkeley, Berkeley, CA, United States, (15)University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States
Abstract:
Parker Solar Probe (PSP) has made a number of important discoveries in its exploration of the inner heliosphere/outer corona inside 36 Rs. Its observation of ubiquitous large amplitude Alfvénic fluctuations, regardless of solar wind speed, in all wind streams except for narrow areas surrounding the heliospheric current sheet, together with large s-shaped inversions of the magnetic field, called switchbacks, begin to call into questions standard ideas of solar wind acceleration. In this presentation we use a wealth of remote sensing and in-situ measurements to pinpoint the sources of the wind observed by PSP. We then discuss the origin and evolution of so-called slow Alfvénic wind, the origin of switchbacks, and the role of magnetic reconnection in the formation of the solar wind.
