Ca II H and K and hydrogen-line variations in V471 Tauri (= BD+16 516).
Abstract
Spectroscopic and narrow-band photoelectric observations of the white dwarf eclipsing binary V471 Tau (= BD + 16 deg 516) are reported. Periodic fluctuations in Ca II H and K emission and H-alpha absorption, and a wave-like distortion of the light curve mimic the characteristics of several well-observed RS CVn binaries. A probable correlation between maximum emission-line strength and wave minimum is shown to exist.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- April 1979
- DOI:
- 10.1086/130475
- Bibcode:
- 1979PASP...91..222O
- Keywords:
-
- Calcium;
- H Alpha Line;
- K Lines;
- Light Curve;
- Stellar Spectrophotometry;
- White Dwarf Stars;
- Eclipsing Binary Stars;
- Electrophotometry;
- Emission Spectra;
- Astrophysics;
- Eclipsing Binaries;
- Eclipsing Binaries:Photometry;
- Eclipsing Binaries:Spectra;
- Eclipsing Binaries:White Dwarfs