RANDOM SPOTS ON CHROMOSPHERICALLY ACTIVE STARS

Authors
EATON JA HENRY GW FEKEL FC
Citation
Ja. Eaton et al., RANDOM SPOTS ON CHROMOSPHERICALLY ACTIVE STARS, The Astrophysical journal, 462(2), 1996, pp. 888-893
Citations number
22
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
462
Issue
2
Year of publication
1996
Part
1
Pages
888 - 893
Database
ISI
SICI code
0004-637X(1996)462:2<888:RSOCAS>2.0.ZU;2-A
Abstract
We have investigated the effect of large numbers of moderately sized s pots placed randomly on a differentially rotating star as the explanat ion of the rotational light curves of magnetically active cool stars. This hypothesis produces light variation very similar to observed ligh t curves of RS CVn binaries, provided there are of order 10-40 spots a t any time and provided individual spots have a finite lifetime.