8th HEAD Meeting, 8-11 September, 2004
Session 25 X-ray Binaries and White Dwarfs
Poster, Friday, September 10, 2004, 9:00am-10:00pm

[Previous] | [Session 25] | [Next]

[25.26] The Hottest White Dwarfs

M. Orio (INAF-Torino and Univ. Wisconsin), T. Rauch (Dr.-Remeis-Sternwarte and Univ. Tuebingen)

We present the first results of modeling extremely hot atmospheres (2 x 10(5) to 10(7) K) of white dwarfs undergoing hydrogen burning in a shell, observed with Chandra and XMM-Newton. A very bright supersoft X-ray source, N V4743 Sgr, is used as a ``template" to start this project. We find an effective temperature around 7x10(5) K and very depleted carbon abundance, as expected after the CNO cycle

[Previous] | [Session 25] | [Next]

Bulletin of the American Astronomical Society, 36 #3
© 2004. The American Astronomical Soceity.