SIMBAD references

2005PASP..117.1386P - Publ. Astron. Soc. Pac., 117, 1386-1393 (2005/December-0)

Spectroscopy of four cataclysmic variables with periods above 7 hours.

PETERS C.S. and THORSTENSEN J.R.

Abstract (from CDS):

We present spectroscopy of four cataclysmic variables. Using radial velocity measurements, we find orbital periods Porbfor the first time: for GY Hya, 0.347230(9) days, for SDSS J204448-045929, 1.68(1) days, for V392 Hya, 0.324952(5) days, and for RX J1951.7+3716, 0.492(1) days. We also detect the spectra of the secondary stars, estimate their spectral types, and derive distances based on surface brightness and Roche lobe constraints.

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Journal keyword(s): Stars: Binaries: Spectroscopic - stars: dwarf novae - Stars: Novae, Cataclysmic Variables

Simbad objects: 4

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