The persisting UV activity in the ex-nova HR Del

Details The persisting UV activity in the ex-nova HR Del The persisting UV activity in the ex-nova HR Del

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aspc..261..657s&link_type=abstract

The Physics of Cataclysmic Variables and Related Objects, ASP Conference Proceedings, Vol. 261. Edited by B. T. Gänsicke, K. Beu

Physics

Scientific paper

We have investigated the long-time and short-time variations in the UV spectrum of the ex-nova HR Del through a re-analysis of its whole set of IUE-INES data. A notable result of this study is the finding that for many years after the return to its pre-outburst optical magnitude the nova has been displaying a considerable UV luminosity and wind activity. This raises several questions on the general assumption that associates the return to the pre-outburst magnitude with the return to a quiescent stage. It is possible that the pre-outburst magnitude at mv ~12 did not correspond with a real "quiescent" state.

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