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New Data from the ISIS Instrument Suite on Parker Solar Probe

37TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2021(2022)

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Abstract
NASA's Parker Solar Probe (PSP) mission's first seven orbits include perihelia as close as similar to 11 million km (similar to 16 solar radii), much closer to the Sun than any prior human-made object. Onboard PSP, the Integrated Science Investigation of the Sun (IS circle dot IS) instrument suite makes groundbreaking measurements of solar energetic particles (SEPs). Here we discuss the near-Sun energetic particle radiation environment over PSP's first two and a half years, which reveal where and how energetic particles are energized and transported. We find a great variety of energetic particle events accelerated both locally and remotely. These include stream and co-rotating interaction regions (SIRs and CIRs), "impulsive" SEP events driven by magnetic reconnection near the Sun, and events related to Coronal Mass Ejections (CMEs). These IS circle dot IS observations made close to the Sun provide critical information for investigating the near-Sun transport and energization of solar energetic particles, which has been difficult to resolve from prior observations. The Parker Solar Probe IS circle dot IS data are made public soon after receipt at Earth (which can be many months after the observations). We will also discuss how to get access to the data.
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