The Chandra LETG and XMM-Newton Spectra of HR 1099

Details The Chandra LETG and XMM-Newton Spectra of HR 1099 The Chandra LETG and XMM-Newton Spectra of HR 1099

2002-01-31

arxiv.org/abs/astro-ph/0201533v1

Astronomy and Astrophysics

Astrophysics

4 pages, 6 figures. Proc. symposium "New Visions of the X-ray Universe in the XMM-Newton and Chandra Era" (ESA SP-488)

Scientific paper

The X-ray luminous RS CVn binary system HR 1099 has been observed on several occasions in the early phases of \textit{Chandra} and \textit{XMM-Newton}. A very hot (up to 40 MK) dominant coronal plasma has been identified from the high-resolution spectroscopic data; cooler plasma is seen down to about 3 MK. We recently obtained 100 ksec in \textit{Chandra}'s Guest Observer Program to study the corona of HR 1099 with the High-Resolution Camera (HRC-S) and the Low Energy Transmission Grating (LETG) across the complete temperature range above 1 MK. The data provide an unprecedented view of spectral lines and continua at high resolution between 1 and 175 \AA. We present our investigations on the Chandra LETGS observation of HR 1099 into the context of the latest results obtained with XMM-Newton.

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