NOAO > Observing Info > Approved Programs > 2013B-0503
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NOAO > Observing Info > Approved Programs > 2013B-0503 |
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PI: Yilen Gomez Maqueo Chew, Vanderbilt University, yilen.gomez@vanderbilt.edu
Address: Physics Department, 6301 Stevenson Center Lane, Nashville, TN 37235, USA
CoI: Leslie Hebb, Vanderbilt University
CoI: Francesca Faedi, University of Warwick
CoI: Katie M. Keating, Rincon Research Corporation
CoI: Keivan Stassun, Vanderbilt University
CoI: Don Pollacco, University of Warwick
CoI: Florian Rodler, Institut de Ciencies de l'Espai (ICE)
CoI: Andrew Collier Cameron, University of St Andrews
Title: Calibrating the Mass-Radius-Temperature Relation in the Low-Mass Regime
Abstract:
We request a total of 9 nights with FLAMINGOS at the KPNO 2.1m to
obtain the J and Ks-band light curves of low-mass M dwarfs in eclipsing
binaries with F/G/K primaries. This is part of a larger effort to
constrain the mass-radius-temperature relation as a function of activity
and metallicity at the bottom of the main sequence with unprecedented
large number statistics. With these observations, we will determine the
temperature of the M dwarfs by comparing the secondary eclipse depth
with the primary temperature as measured from spectral synthesis. The
measurement of the secondary eclipse is only possible in the near-
infrared, where the M dwarfs are brighter. To achieve precise
measurements, the observations require a temporal coverage of the
secondary minimum, and part of the out-of-eclipse phases. The
comprehensive modeling of the binaries, including radial velocity and
multi-band light curves, will allow us to fully determine their
fundamental properties, including masses, radii and temperatures.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2013B-0503 |
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