X-ray Flare on the Single Giant HR9024

Details X-ray Flare on the Single Giant HR9024 X-ray Flare on the Single Giant HR9024

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006hrxs.confe..39t&link_type=abstract

High Resolution X-ray Spectroscopy: towards XEUS and Con-X, Proceedings of the international workshop held at the Mullard Space

Physics

Scientific paper

We analyze a Chandra-HETGS observation of the single G-type giant HR 9024. The high flux allows us to examine spectral line and continuum diagnostics at high temporal resolution, to derive plasma parameters (thermal distribution, abundances, temperature, ...). A time-dependent 1D hydrodynamic loop model with semi-length 1012 cm (~Rstar), and impulsive footpoint heating triggering the flare, satisfactorily reproduces the observed evolution of temperature and emission measure, derived from the analysis of the strong continuum emission.

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