Inner Orbits in Hierarchical Triple Systems from the CHARA Array. I. V819 Her B

Details Inner Orbits in Hierarchical Triple Systems from the CHARA Array. I. V819 Her B Inner Orbits in Hierarchical Triple Systems from the CHARA Array. I. V819 Her B

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011apj...728..111o&link_type=abstract

The Astrophysical Journal, Volume 728, Issue 2, article id. 111 (2011).

Astronomy and Astrophysics

Astronomy

2

Binaries: Close, Techniques: Interferometric

Scientific paper

We employ the wide component of a triple system to calibrate the interferometric visibility of the inner, short-period orbit in the case of V819 Her. The orbit for V819 Her B was thereby derived by performing a χ2 fit to interferometric visibility measurements from observations of fringe packets at the CHARA Array. Comparing this orbit to that of V819 Her AB (the wider orbit in this hierarchical triple system), the mutual inclination was found to be 33fdg5 ± 9fdg3, consistent with observations of other triple systems. Also, due to the presence of an evolved component in the system, the age of the system can be estimated to be 1.9 Gyr ± 1.1 Gyr.

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