Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-03-19
Astronomy and Astrophysics
Astrophysics
4 pages, 1 figure, RS Oph (2006), Keele, UK, conference proceeding
Scientific paper
The short interval between successive outbursts of RS Oph strongly suggests that it has a high mass white dwarf accreting at a high rate. This, in turn, suggests the possibility of prominent X-ray emission from RS Oph in quiescence. However, archival quiescent X-ray observations of RS Oph show it to be a modest soft X-ray source but not a strong 2-10 keV X-ray source. In this aspect, RS Oph differs markedly from T CrB. We speculate on the possible mechanisms that could significantly suppress the 2-10 keV X-ray emission in RS Oph.
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