X-ray Oscillations and Diagnostics of Stellar Flare Plasma

Details X-ray Oscillations and Diagnostics of Stellar Flare Plasma X-ray Oscillations and Diagnostics of Stellar Flare Plasma

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confe..44s&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 44-44"

Physics

Scientific paper

X-ray oscillations from the flare on active red dwarf AT Mic detected with XMM-Newton are investigated. We associate 750 s observed oscillations with the excitation of slow magnetosonic waves in a coronal magnetic loop. The plasma density (3x10^10 cm^-3), temperature (2x10^7 K), and minimum possible value of magnetic field (100 G) in the flare site were determined using coronal seismology approach. The piston mechanism is assumed to be responsible for the excitation of flaring loop oscillations.

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