Observing Mass Transfer in a Neglected Interacting Binary Star

Details Observing Mass Transfer in a Neglected Interacting Binary Star Observing Mass Transfer in a Neglected Interacting Binary Star

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21812204r&link_type=abstract

American Astronomical Society, AAS Meeting #218, #122.04; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

The eclipsing and interacting binary star R Arae is a very interesting system that has unfortunately been neglected. The few spectroscopic studies of the system report badly blended absorption lines that indicate mass transfer, but until now there has been no orbital period study to conclusively show a real period change resulting from mass transfer. In this study, new data are combined with those found in the available literature and in the database of the American Association of Variable Star Observers to construct the first ephemeris curve for R Ara, which spans more than a century since its discovery in 1894. Average orbital period change and conservative mass transfer rates are presented.

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