Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21720105w&link_type=abstract
American Astronomical Society, AAS Meeting #217, #201.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astrophysics
Scientific paper
Stellar magnetic activity leads to a plethora of observable effects, from star spots that modulate the stellar brightness on the order of weeks, to flares, which release highly energetic radiation over the course of a few hours. Although Kepler's main goal is the discovery of exoplanets, its unmatched precision photometry provides a wealth of information regarding stellar astrophysics. Because of the intimate link between stellar rotation and the generation of the magnetic field, periodic brightness variations due to starspots may be used to gain insight into the magnetic dynamo. In addition, an understanding of the stellar radiation environment provides context for studies of potential attendant planets. I will discuss our ongoing work with Kepler to characterize stellar variability due to spots and flares, and to determine rotation periods for the these stars. Kepler was selected as the 10th mission of the Discovery Program. Funding for this mission is provided by NASA, Science Mission Directorate.
Basri Gibor
Walkowicz Lucianne M.
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