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1999A&A...347..550D - Astronomy and Astrophysics, volume 347, 550-555 (1999/7-2)
The peculiar single giant HD 112989: rotation, activity and evolution.
DE MEDEIROS J.R., KONSTANTINOVA-ANTOVA R.K. and DA SILVA J.R.P.
Abstract (from CDS):
A spectroscopic, photometric and evolutionary study is presented for HD 112989, an active peculiar giant star. The present spectroscopic observations show a significant CaII K&H emission core variability, whereas the UBV photometry shows that HD 112989 has a variable brightness. The rotational velocity for this star, 11.0km/s, is about five times larger than the mean rotational velocity for giants with the same spectral type. In addition, we have found no sign of binarity for this star.
Abstract Copyright: ∼
Journal keyword(s): stars: activity - stars: chromospheres - stars: fundamental parameters - stars: individual: HD 112989 - stars: rotation
Simbad objects: 5
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