Light-time effect in the eclipsing binary system AM Leonis

Details Light-time effect in the eclipsing binary system AM Leonis Light-time effect in the eclipsing binary system AM Leonis

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005an....326..122a&link_type=abstract

Astronomische Nachrichten, Vol.326, Issue 2, p.122-126

Astronomy and Astrophysics

Astronomy

4

Binaries: Close, Stars: Individual (Am Leo)

Scientific paper

We report four new times of minimum light and the improved ephemeris for the well known contact binary AM Leo. The O-C diagram, constructed with all reliable timings found in the literature was analyzed and the the light-time effect in the system was confirmed. We found a periodicity of 44.82 years in the O-C residuals with an amplitude of 0.0058 day. The periodic curve representing the O-C values is asymmetric indicating a large eccentricity of 0.73 of the third body orbit. The mass of the third body is found to be 0.175 Msun for the orbital inclination of the eclipsing pair's orbit.

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