Stellar Activity with BRITE: the ``Aurigae'' field

Details Stellar Activity with BRITE: the ``Aurigae'' field Stellar Activity with BRITE: the ``Aurigae'' field

Jan 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.152..124s&link_type=abstract

Communications in Asteroseismology, Vol.152, p. 124-130

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Scientific paper

Photometric time series of active stars can pin down some of the ingredients that govern the stellar magnetic field, itself being the driver of all non-thermal stellar emissions. Among the most important -- and least understood -- astrophysical ingredients is stellar rotation and its subtle latitudinal dependence called differential rotation. Rotation switches on and maintains the internal dynamo, itself a phenomenon from the interaction of turbulent plasma motions and large-scale shearing forces in the deep stellar interior. I propose to observe the active binary Capella, made up of two giants in exposed locations in the HR-diagram. Along with Capella (α Aur), another eight stars brighter than 4th magnitude would be in the field-of-view of BRITE, among them such benchmark variables as ζ Aur or θ Aur.

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