Cataclysmic Variables discovered in the ChaMPlane Survey
Abstract
We present the Cataclysmic Variables discovered in the Chandra Multi-wavelength Plane Survey (ChaMPlane). ChaMPlane is designed to survey the point X-ray sources discovered by the Chandra X-ray Observatory in the galactic plane in order to constrain the X-ray binary population in the Galaxy. The survey includes the data from the Chandra achieve, as well as the optical and infrared images and spectroscopes. CV candidates are first identified from the Chandra and optical imaging in the deep V, I, R, H-alpha bands. Then optical spectroscopic follow-ups are conducted to confirm their status. CVs are identified by their hydrogen Balmer and helium emission lines, often broadened and double peaked due to the accretion disk rotation around the primary. We present the spectra of 25 CVs obtained from the Magellan, CTIO-4m and WIYN telescopes.
- Publication:
-
American Astronomical Society Meeting Abstracts #229
- Pub Date:
- January 2017
- Bibcode:
- 2017AAS...22924302Z