Coordinated optical and ultraviolet observations of short period RS CVn and W UMa type stars
Data from the Fiber Optic Echelle Charge Coupled Device (CCD) Spectrograph at KPNO as well as IUE data were analyzed in this study of short period RS CVn and W UMa type binaries. Optical data were analyzed using a spectral subtraction technique to find excess emission (or absorption) in the component spectra. Analysis of data for the W UMa type contact binary VW Cep strongly suggests the existence of extended material near the contact region but clearly outside the Roche lobes. This material is presumably confined in magnetic loops bridging the two components. Making simple assumptions, the density can be estimated at 4 to 5 times 10 {sup 12} cm (sup {minus}3). A possible prominence was also detected on the secondary component of the detached short period RS CVn system DH Leo.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States). Davey Lab.
- OSTI ID:
- 5259757
- Country of Publication:
- United States
- Language:
- English
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