CATACLYSMIC VARIABLES IN THE SUPERBLINK PROPER MOTION SURVEY

2014/09/05 by Julie N. Skinner, John R. Thorstensen, Sébastien Lépine
Engineering · Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Balmer series #Cataclysmic variable star #Orbital motion #Proper motion #Radial velocity #Space Technology and Applications #Stars #Telescope #Variable star #astro-ph.SR

paper · pdf · doi:10.1088/0004-6256/148/6/115

Accepted for publication in The Astronomical Journal, 22 pages, 6 figures

arxiv created 2014/09/05 · openalex publication_date 2014/10/31 · arxiv updated 2015/06/22 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We have discovered a new high proper motion cataclysmic variable (CV) in the SUPERBLINK proper motion survey, which is sensitive to stars with proper motions greater than 40 mas yr −1 . This CV was selected for follow-up observations as part of a larger search for CVs selected based on proper motions and their near-UV− V and V−K s colors. We present spectroscopic observations from the 2.4 m Hiltner Telescope at MDM Observatory. The new CVʼs orbital period is near 96 minutes, its spectrum shows the double-peaked Balmer emission lines characteristic of quiescent dwarf novae, and its V magnitude is near 18.2. Additionally, we present a full list of known CVs in the SUPERBLINK catalog.

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