Spectroscopy of Four Cataclysmic Variables with Periods above 7 Hours
arXiv:astro-ph/0511461 · doi:10.1086/497384
Abstract
We present spectroscopy of four cataclysmic variables. Using radial velocity measurements, we find orbital periods for the first time. The stars and their periods are GY Hya, 0.347230(9) d; SDSS J204448-045929, 1.68(1) d; V392 Hya, 0.324952(5) d; and RX J1951.7+3716, 0.492(1) d. We also detect the spectra of the secondary stars, estimate their spectral types, and derive distances based on surface brightness and Roche lobe constraints.
arXiv comment22 pages, 3 figures, 5 tables, to be published in December 2006 PASP
References in corpus (12)
- Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
- RVSAO 2.0: Digital Redshifts and Radial Velocities
- A Catalog and Atlas of Cataclysmic Variables - The Living Edition
- Cataclysmic Variables from SDSS II. The Second Year
- Cataclysmic Variables from SDSS I. The First Results
- Anomalous ultraviolet line flux ratios in the cataclysmic variables 1RXSJ232953.9+062814, CE315, BZ UMa and EY Cyg observed with HST/STIS
- 1RXS J232953.9+062814: A Dwarf Nova with a 64-minute Orbital Period and a Conspicuous Secondary Star
- On the late spectral types of cataclysmic variable secondaries
- Identification of selected sources from the ROSAT Galactic Plane Survey - I
- QZ Serpentis: A Dwarf Nova with a 2-Hour Orbital Period and an Anomalously Hot, Bright Secondary Star
- Spectroscopy of Seven Cataclysmic Variables with Periods Above Five Hours
- The cataclysmic variable CW 1045+525: a secondary-dominated dwarf nova?
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- Characterization of Dwarf Novae Using SDSS Colors
- The Unusual Cataclysmic Binary Star RBS 0490 and the Space Density of Cataclysmics
- Exploring the SDSS Dataset with Linked Scatter Plots: I. EMP, CEMP, and CV Stars
- Robust Models for Phase Shifts in Accreting Binary Stars
- Photometry of the long period dwarf nova MU Centauri
- NSV 1907 - A new eclipsing, nova-like cataclysmic variable
- Photometry of the long period dwarf nova GY Hya
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