An archival study of extended X-ray emission from classical and recurrent novae

Details An archival study of extended X-ray emission from classical and recurrent novae An archival study of extended X-ray emission from classical and recurrent novae

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006adspr..38.2840b&link_type=abstract

Advances in Space Research, Volume 38, Issue 12, p. 2840-2843.

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I discuss morphology and spectrum of the first resolved and detected classical nova shell in the X-rays the remnant of GK Persei (1901). The existence of such a nebulosity brings about the possibility of other nova remnants emitting X-rays. I calculate that the X-ray luminosity should be about 1026 1033 ergs s-1 on the onset of cooling for nova remnants. I have done an archival search on 250 classical and recurrent nova candidates using Chandra, XMM-Newton, ROSAT and ASCA databases. There is no significant extended emission detected which places an upper limit of Fx < × 10-12 erg s-1 cm-2 (unabsorbed). Only exceptions are GK Per, RR Pic and DQ Her (all observed by Chandra ACIS-S and GK Per also by ROSAT HRI) where the latter two show marginal extended emission in the X-rays associated with emission knots (DQ Her) or an equatorial ring (RR Pic).

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