Angular Momentum Loss in Subdwarf B + dwarf M Binaries

Details Angular Momentum Loss in Subdwarf B + dwarf M Binaries Angular Momentum Loss in Subdwarf B + dwarf M Binaries

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934522t&link_type=abstract

American Astronomical Society, AAS Meeting #219, #345.22

Astronomy and Astrophysics

Astronomy

Scientific paper

We present new optical and infrared photometry of several short-period (P 2.5 h) eclipsing binaries consisting of a hot subdwarf B star and a dwarf M star. Observations of open clusters yield estimates of the angular momentum loss from magnetized winds in rapidly-rotating low-mass stars. We combine our data with eclipse timings from the literature to detect or set strong limits on changes in the orbital period that result from angular momentum loss in these binaries, and compare these with expectations from empirically calibrated wind-loss models.

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