Work

The New Eclipsing Cataclysmic Variable SDSS 154453+2553

Year: 2011

Type: article

Abstract: The cataclysmic variable SDSS 154453 + 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 hr 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 ± 180 pc.

Source: Publications of the Astronomical Society of the Pacific

DOI: 10.1086/658878

Authors: Julie N. Skinner, John R. Thorstensen, Eve Armstrong, Steve Brady

Institutions: Dartmouth College, Columbia University, American Association of Variable Star Observers

Language: English

Topic: Astrophysical Phenomena and Observations

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funder: National Science Foundation

Awards: Fundamental Astronomy of Cataclysmic Binaries, Fundamental Astronomy of Catalysmic Binaries