Infrared Identified Secondaries in Young Star Spectroscopic Binaries

Details Infrared Identified Secondaries in Young Star Spectroscopic Binaries Infrared Identified Secondaries in Young Star Spectroscopic Binaries

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.8905p&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #89.05; Bulletin of the American Astronomical Society, Vol. 33, p.1435

Astronomy and Astrophysics

Astronomy

Scientific paper

Using high resolution, R=24,000, near-infrared H band spectroscopy with NIRSPEC at Keck II, we detected the cool secondary components in visual wavelength identified pre-main-sequence, single-lined spectroscopic binaries. The mass ratio for one young binary, NTTS 160905-1859, is M2/M1=0.18+/-0.01, the smallest yet measured dynamically for a pre-main-sequence spectroscopic system. Our results demonstrate the power of infrared spectroscopy for the dynamical identification of cool secondaries. We compare our observations with a compilation of the published young double-lined spectroscopic binaries and discuss our unique contribution to this sample.

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