Speaker
Christoffer Karoff
(Aarhus University, Department of Physics and Astronomy)
Description
Since the launch of the Kepler spacecraft in 2009 we have
monitored 20 Sun-like stars
in the Kepler field-of-view for excess flux with the FIES
spectrograph on the Nordic
Optical Telescope. These 20 stars were selected based on
their asteroseismic
properties to sample the parameter space around the Sun and
cover both sides of the
Vaughan-Preston gap. The ultimate goal of this is to be able
to improve stellar
dynamo models. I will here discuss the general ideas behind
the project and show how
the combination of space-based and ground-based observations
can be used to test the
age-rotation-activity relations.
Primary author
Christoffer Karoff
(Aarhus University, Department of Physics and Astronomy)
