We report the detection of the polar CE Gru in X-rays for the first time. We find evidence for a dip seen in the hard X-ray light curve which we attribute to the accretion stream obscuring the accretion region in the lower hemisphere of the white dwarf. The X-ray spectrum can be fitted using only a shock model: there is no distinct soft X-ray component. We suggest that this is because the reprocessed component is cool enough so that it is shifted into the UV. We determine a mass for the white dwarf of ~1.0Msun.
@article{arxiv.astro-ph/0205102,
title = {First X-ray observations of the polar CE Gru},
author = {Gavin Ramsay and Mark Cropper},
journal= {arXiv preprint arXiv:astro-ph/0205102},
year = {2009}
}