The
Astero
Fitting
at Low Angular
degree Group
(asteroFLAG)
We
stand on the
threshold of a critical expansion of asteroseismology of Sun-like
stars, the study of stellar
interiors by observation of their global acoustic modes of
oscillation. The Sun-like oscillations give a very rich spectrum
allowing the internal structure and dynamics to be probed down into
the stellar cores to very high precision. Asteroseismic observations
of many stars will allow multiple-point tests of crucial aspects of
stellar evolution and dynamo theory. The
AsteroFLAG
group is an international collaboration of asteroseismologists. Our ISSI programme
will make a
major contribution to position the field to make optimal use of the
expected large quantities of data.
We are currently conducting comprehensive hare-and-hounds exercises to help prepare for the asteroseismology component of the NASA Kepler mission (the Kepler Asteroseismology Investigation, KAI). Realistic artificial datasets will be used to assess the accuracy and precision of methods that extract the mode parameters. Accurate and precise mode parameters are a vital prerequisite for accurate inference on the stellar interiors. Crucial to our proposal is the transfer of expertise from analysis of data on the Sun (helioseismology), in particular knowledge acquired from the solarFLAG group, which has conducted similar, successful hare-and-hounds exercises for the helioseismic case.
Group members
Documentation
ISSI
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solarFLAG