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Mon. Not. R. Astron. Soc. (2006) doi:10.1111/j.1365-2966.2006.10569.x A new detached K7 dwarf eclipsing binary system
 

Summary: Mon. Not. R. Astron. Soc. (2006) doi:10.1111/j.1365-2966.2006.10569.x
A new detached K7 dwarf eclipsing binary system
T. B. Young,1
M. G. Hidas,1
J. K. Webb,1
M. C. B. Ashley,1
J. L. Christiansen,1
A. Derekas2
and C. Nutto1
1School of Physics, University of New South Wales, Sydney, NSW 2052, Australia
2School of Physics, University of Sydney, NSW 2006, Australia
Accepted 2006 May 17. Received 2006 May 17; in original form 2006 April 13
ABSTRACT
We present an analysis of a new, detached, double-lined eclipsing binary system with K7 Ve
components, discovered as part of the University of New South Wales (UNSW) Extrasolar
Planet Search. The object is significant in that only six other binary systems are known with
comparable or lower mass. Such systems offer important tests of mass­radius theoretical
models. Follow-up photometry and spectroscopy were obtained with the 40-inch and 2.3-m
telescopes at Siding Spring Observatory (SSO), respectively. An estimate of the radial velocity
amplitude from spectral absorption features, combined with the orbital inclination (83.5

  

Source: Ashley, Michael C. B. - School of Physics, University of New South Wales

 

Collections: Physics