We have optically identified a recently discovered INTEGRAL source, IGR J08390--4833, with a cataclysmic variable, i.e. an accreting white dwarf in a binary system. The spectrum exhibits a rising blue continuum together with Balmer and HeII emission lines. Analysis of the light curve of the source shows clear presence of intrinsic variability on a time scale of the order of an hour, although we do not claim that this variability is periodic. Therefore we are not yet able to classify the object into a specific CV subclass.
@article{arxiv.0810.1434,
title = {Optical identification of a new cataclysmic variable from integral all sky survey: IGR J08390--4833},
author = {M. Revnivtsev and A. Kniazev and S. Sazonov and R. Burenin and A. Tekola and D. A. H. Buckley and M. L. Pretorius and J. Menzies and W. Lawson},
journal= {arXiv preprint arXiv:0810.1434},
year = {2008}
}
Comments
Accepted for publication in Astronomy Letters, to appear in Volume 35