The New Eclipsing Cataclysmic Variable SDSS 154453+2553

Abstract

The cataclysmic variable SDSS154453+2553 was recently identified in the Sloan Digital Sky Survey. We obtained spectra and photometry at the MDM Observatory, which revealed an eclipse with a 6.03 hour period. The Hα emission line exhibits a strong rotational disturbance during eclipse, indicating that it arises in an accretion disk. A contribution from an M-type companion is also observed. Time-series photometry during eclipse gives an ephemeris of 2454878.0062(15) + 0.251282(2)E. We present spectroscopy through the orbit and eclipse photometry. Our analysis of the secondary star indicates a distance of 800 {\pm} 180 pc.

6 pages, 3 figures, Accepted for publication in PASP

References in corpus (2)

• The Donor Stars of Cataclysmic Variables
• Cataclysmic Variables from SDSS VII. The Seventh Year (2006)

Cited by in corpus (3)

• Evidence for reduced magnetic braking in polars from binary population models
• Pulsating Components in Binary and Multiple Stellar Systems --- A Catalog of Oscillating Binaries
• Characterization of Dwarf Novae Using SDSS Colors