Modeling the Galactic CV Distribution for the ChaMPlane Survey

Details Modeling the Galactic CV Distribution for the ChaMPlane Survey Modeling the Galactic CV Distribution for the ChaMPlane Survey

2007-11-12

arxiv.org/abs/0711.1813v1

Astronomy and Astrophysics

Astrophysics

11 pages, 5 figures. Accepted for publication in the Astrophysical Journal

Scientific paper

10.1086/527289

For purposes of designing targeted cataclysmic variable (CV) detection surveys and interpreting results of other projects with many CV detections such as the ChaMPlane Survey, we have created a model of the CV distribution in the Galaxy. It is modeled as a warped, flared exponential disk with a gaussian vertical distribution. Extinction is based on a detailed Galactic dust and gas model. A luminosity function for CVs is also incorporated, based on a smoothed version of published data. We calculate predicted field detection rates as a function of the limiting magnitude expected for the detecting system (i.e. WIYN/Hydra or NOAO 4m/Mosaic). Monte-Carlo techniques are used to assess statistical fluctuations in these rates. We have created maps of the expected CV distribution for the full non-bulge Galactic plane (20

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