The UV and optical properties of Old Novae

Details The UV and optical properties of Old Novae The UV and optical properties of Old Novae

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..330..445s&link_type=abstract

The Astrophysics of Cataclysmic Variables and Related Objects, Proceedings of ASP Conference Vol. 330. Edited by J.-M. Hameury a

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

We have examined the UV and optical properties of twenty old-novae observed with IUE. The de-reddened continuum energy distribution of all stars is well described by a power-law distribution Fλ˜λ-α with α ranging from 0.0 (GK Per) to 2.7 (V841 Oph). Our new values of EB-V have led to new estimates of the UV luminosities which range from less than 1 L&sun; (DQ Her) to as much as 70 L&sun; (HR Del and T Pyx). A tight correlation exists between LUV and MVmin, and both these quantities show a definite correlation with the system inclination angle cos i, with the notable exceptions of the extra slow nova HR Del and of the recurrent nova T Pyx that are too bright.

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