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THE CHANDRA LETG AND XMM-NEWTON SPECTRA OF HR 1099 M. Audard 1 , M.Gudel 1 , and R.L.J. van der Meer 2
 

Summary: 1
THE CHANDRA LETG AND XMM-NEWTON SPECTRA OF HR 1099
M. Audard 1 , M.Gudel 1 , and R.L.J. van der Meer 2
1 Paul Scherrer Institut, Wurenlingen and Villigen, 5232 Villigen PSI, Switzerland
2 Space Research Organization Netherlands, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
Abstract
The X-ray luminous RS CVn binary system HR 1099
has been observed on several occasions in the early phases
of Chandra and XMM-Newton. A very hot (up to 40 MK)
dominant coronal plasma has been identi ed from the
high-resolution spectroscopic data; cooler plasma is seen
down to about 3 MK. We recently obtained 100 ksec in
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 con-
tinua at high resolution between 1 and 175  A. We present
our investigations on the Chandra LETGS observation of
HR 1099 into the context of the latest results obtained

  

Source: Audard, Marc - INTEGRAL Science Data Centre & Observatory of Geneva, Université de Genève
Guedel, Manuel - Institut für Astronomie, Universität Wien

 

Collections: Physics