XMM-Newton and Optical Observations of Cataclysmic Variables from SDSS
Abstract
We report on XMM-Newton and optical results for 6 cataclysmic variables that were selected from Sloan Digital Sky Survey spectra because they showed strong HeII emission lines, indicative of being candidates for containing white dwarfs with strong magnetic fields. While high X-ray background rates prevented optimum results, we are able to confirm SDSSJ233325.92+152222.1 as an intermediate polar from its strong pulse signature at 21 min and its obscured hard X-ray spectrum. Ground-based circular polarization and photometric observations were also able to confirm SDSSJ142256.31-022108.1 as a polar with a period near 4 hr. Photometry of SDSSJ083751.00+383012.5 and SDSSJ093214.82+495054.7 solidifies the orbital period of the former as 3.18 hrs and confirms the latter as a high inclination system with deep eclipses.
Keywords
Cite
@article{arxiv.0901.1850,
title = {XMM-Newton and Optical Observations of Cataclysmic Variables from SDSS},
author = {Eric J. Hilton and Paula Szkody and Anjum Mukadam and Arne Henden and William Dillon and Gary D. Schmidt},
journal= {arXiv preprint arXiv:0901.1850},
year = {2009}
}
Comments
31 pages, 14 figures. Accepted for publication in the Astronomical Journal