POSTER PAPER 4.02
Spotted Stars in the Pleiades and Orion Nebular Cluster
Th. Granzer, K. G. Strassmeier
Institute: Astropysical Institute Potsdam
Contact Email: tgranzer@aip.de
Abstract:
We present the results of extensive MHD simulations aiming to predict star spot
patterns on stars in two well-known stellar clusters, the Pleiades (100 Myr)
and the Orion Nebular Cluster (2 Myr). The emergence of thin magnetic flux
tubes is studied from their
origin at the base of the convective zone up to the photosphere.
The mass/rotational grid of the stellar models is wide enough
to cover all stellar types where theory predicts the possibility of starspot
formation. In particular, masses between 4.0 MSun and 0.4 MSun
and rotational rates from 0.25 OmegaSun to 25 OmegaSun are
considered.
Index Keywords:Flux-tube; Starspots; Pleiades; Orion Nebular Cluster
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Manuscript submitted: 2001-Aug-30
"The Future of Cool-Star Astrophysics", 2003, Eds. A. Brown,
G. M. Harper, & T. R. Ayres.
Proceedings of 12th Cambridge Workshop on Cool Stars, Stellar Systems,
& The Sun,
© 2003 University of Colorado.