Hydrogen alpha observations of RS Canum Venaticorum stars. I II Peg

Hydrogen alpha observations of RS Canum Venaticorum stars. I II Peg

Observations of the active RS CVn variable II Peg made during the 1981 observing season are presented. A marked change in the emission line behavior with phase over that observed several years ago is noted. In addition, a unique decrease in the H-alpha emission flux to unprecedented sustained low le...

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Veröffentlicht in:The Astronomical journal 1984-01, Vol.89, p.115-118
Hauptverfasser: Ramsey, L. W., Nations, H. L.
Format: Artikel
Sprache:eng
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Zusammenfassung:Observations of the active RS CVn variable II Peg made during the 1981 observing season are presented. A marked change in the emission line behavior with phase over that observed several years ago is noted. In addition, a unique decrease in the H-alpha emission flux to unprecedented sustained low levels was observed during the summer of 1981.
ISSN:0004-6256
DOI:10.1086/113488