HD 71636, A Newly Discovered Eclipsing Binary

Details HD 71636, A Newly Discovered Eclipsing Binary HD 71636, A Newly Discovered Eclipsing Binary

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aj....132.2489h&link_type=abstract

The Astronomical Journal, Volume 132, Issue 6, pp. 2489-2495.

Astronomy and Astrophysics

Astronomy

5

Stars: Binaries: Close, Stars: Binaries: Eclipsing, Stars: Binaries: Spectroscopic

Scientific paper

Our differential BV photometric observations, acquired with an automated telescope at Fairborn Observatory, show that HD 71636 is an eclipsing binary. From follow-up red-wavelength spectroscopic observations we classify the primary and secondary as an F2 dwarf and an F5 dwarf, respectively. The system has a period of 5.01329 days and a circular orbit. We used the Wilson-Devinney program to simultaneously solve our BV light curves and radial velocities and determined a number of fundamental properties of the system. Comparison with evolutionary tracks indicates that both stars are well ensconced on the main sequence. The age of the system is about 1.2 billion years.

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