%0 Journal Article
%T Optical identification of supersoft X-ray sources in M31
%A Marina orio
%A Roberto Casalegno
%A Chris Conselice
%A Jochen Greiner
%A Petko L. Nedialkov
%A Nikolay A. Tikhonov
%J Physics
%D 2001
%I arXiv
%X We report on initial progress in a program of optical identification of supersoft X-ray sources in M31, pursued mainly with the WIYN telescope. We propose the identification of one supersoft X-ray source with a variable star, which we believe to have been a classical or recurrent nova in outburst in September 1990. The nova remnant must have been still a supersoft X-ray sources 5 years after this observation, when it was observed with ROSAT.
%U http://arxiv.org/abs/astro-ph/0102441v1