SH049-0004
Corotating Interaction Regions observed between Solar Orbiter and Parker Solar Probe

Wednesday, 16 December 2020
Poster
Robert Colby Allen1, George C Ho1, Glenn M Mason1, Javier Rodriguez-Pacheco2, Robert F Wimmer-Schweingruber3, David J McComas4, Eric R Christian5, Nathan Schwadron6, Matthew E Hill1, Mark E Wiedenbeck7, Ralph L McNutt Jr8, Nour E. Raouafi9 and David Lario10, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (2)University of Alcalá, Space Research Group, Alcalá de Henares, Spain, (3)University of Kiel, Institute for Experimental and Applied Physics, Kiel, Germany, (4)Princeton University, Department of Astrophysical Sciences, Princeton, NJ, United States, (5)NASA GSFC, Greenbelt, MD, United States, (6)University of New Hampshire, Durham, NH, United States, (7)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (8)Johns Hopkins Univ/APL, Laurel, MD, United States, (9)Johns Hopkins University, Baltimore, MD, United States, (10)The Johns Hopkins University, Laurel, MD, United States
Abstract:
The addition of Solar Orbiter (SolO) to the current fleet of heliospheric observatories allows for a better understanding of large-scale solar wind structures, such as Corotating Interaction Regions (CIRs). The combination of Parker Solar Probe (PSP) and SolO allows for two-point measurements of structures well inside of 1 au. This talk will focus on CIRs observed by both PSP and SolO where we compare measurements from the PSP Integrated Science Investigation of the Sun (ISOIS) – Energetic Particle Instrument-Low (EPI-Lo) and the SolO Energetic Particle Detector/Suprathermal Ion Spectrograph (EPD/SIS). Both instruments are capable of measuring H-Fe ions with excellent mass resolution in the suprathermal energy range, allowing for in-depth analysis of the spectral slopes of different ion species associated with CIRs. Multi-point observations of these structures and the suprathermal ions associated with them enabled by SolO and PSP within 1 au will provide new insights into particle acceleration and transport in the inner heliosphere.
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