Bibcode
Coughlin, Jeffrey; Lopez-Morales, M.; Marzoa, R. I.; Harrison, T.; Ule, N.; Hoffman, D.
Referencia bibliográfica
American Astronomical Society, AAS Meeting #217, #201.04; Bulletin of the American Astronomical Society, Vol. 43, 2011
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1
2011
Número de citas
0
Número de citas referidas
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Descripción
An outstanding problem in Astronomy for the past 15+ years
has been that the radii of low-mass, (M < 1.0 M&sun;),
main-sequence stars in eclipsing binary systems are consistently about
15% larger than predicted by theoretical models. The main cause is
hypothesized to be rapid rotation due to binary spin-up, as all but one
of the currently known systems have P < 3.0 days. We present
100+ new low-mass, main-sequence, double-lined eclipsing
binaries (LMMS DDEBs) from both our Kepler Guest Observer Program, as
well as the initial Kepler public data release. We identify over 25 new
systems with P > 10 days, extending the sample of LMMS DDEBs into
this completely heretofore unexplored period range. We present the
initial results of our intensive observing campaign to obtain
ground-based radial-velocity and multi-color photometry follow-up of
these long-period systems, in order to determine precise masses and
radii. We thank all the hard-working members of the Kepler team, and
acknowledge support from the Kepler Guest Observer Program, the New
Mexico Space Grant Consortium, and a NSF Graduate Research Fellowship.