Particle Acceleration in Solar Flares and the Plasma Universe -- Deciphering its features under magnetic reconnection

Session

Day 1 / Session 3

1-3

15 Nov 2021, 11:30

Virtual

Conveners

Day 1 / Session 3

• Lindsay Glesener (University of Minnesota)

29. Particle Acceleration in Massive Stellar Binary Systems

Kenji Hamaguchi (CRESST II NASA/GSFC & UMBC)

15/11/2021, 11:30

Invited talk

The majority of massive stars form a binary system with another massive star. Their strong winds with velocities at 1000-3000 km s${}^{-1}$ collide between the two stars and produce stationary shocks. Several so-called colliding wind binary systems (CWBs) within a few kpc from the Sun produce shock-heated plasmas at ~3-5$\times {10}^7$ K and emit luminous X-rays up to ~10${}^{34-35}$ ergs s${}^{-1}$....

17. The X-ray telescope STIX on Solar Orbiter: first results and future prospects

Alexander Warmuth (Leibniz Institute for Astrophysics Potsdam (AIP))

15/11/2021, 12:00

Invited talk

Solar Orbiter is an ESA space mission that was successfully launched on February 10th, 2020, from Cape Canaveral. Its purpose is to improve our understanding of how the Sun creates and controls the heliosphere. The Spectrometer/Telescope for Imaging X-rays (STIX) is one of sic remote-sensing instruments on board and provides imaging spectroscopy of the of solar flares in the 4-150 keV range....

28. Hot Plasma Flows and Oscillations in the Loop-top Region During the 2017 September 10 X8.2 Solar Flare

Katharine Reeves (Harvard-Smithsonian Center for Astrophysics)

15/11/2021, 12:30

Contributed talk

In this study, we investigate motions in the hot plasma above the flare loops during the 2017 September 10 X8.2 flare event. We examine the region to the south of the main flare arcade, where there is data from the Interface Region Imaging Spectrograph (IRIS) and the Extreme ultraviolet Imaging Spectrometer (EIS) on Hinode. We find that there are initial blueshifts of 20–60 km/s observed in...

24. Low-energy Cutoff of Non-thermal Electrons estimated from a Spectro-polarimetric Observation

Tetsu Anan (National Solar Observatory)

15/11/2021, 12:45

Contributed talk

Low-energy cutoff of the non-thermal electron energy distribution is crucial to derive the total non-thermal electron energy. A flare kernel associated with a C4 class flare was observed in a spectral window including the He I triplet 1083.0 nm and Si I 1082.7 nm with a spectro-polarimeter on the Domeless Solar Telescope at Hida Observatory on 2015 August 9. The observed Stokes profiles of the...