IUE observations of long period eclipsing binaries: A study of accretion onto non-degenerate stars.
Abstract
IUE observations made in 1978-1979 recorded a whole class of interacting long-period binaries similar to beta Lyrae, which includes RX Cas, SX Cas, V 367 Cyg, W Cru, beta Lyr, and W Ser, called the W Serpentis stars. These mass-transferring binaries with relatively high mass transfer rate show two prominent features in the far ultraviolet: a continuum with a color temperature higher than the one observed in the optical region (about 12,000 K), and a strong emission line spectrum with the N V doublet at 1240 A, C IV doublet at 1550 A and lines of Si II, Si III, Si IV, C II, Fe III, AI III, etc. These phenomena are discussed on the assumption that they are due to accretion onto non-degenerate stars.
- Publication:
-
Close Binary Stars: Observations and Interpretation
- Pub Date:
- 1980
- Bibcode:
- 1980IAUS...88..251P
- Keywords:
-
- Eclipsing Binary Stars;
- Iue;
- Stellar Mass Accretion;
- Stellar Spectra;
- Ultraviolet Astronomy;
- Atmospheric Composition;
- Emission Spectra;
- Line Spectra;
- Long Term Effects;
- Lyra Constellation;
- Mass Transfer;
- Astronomy