Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2011-08-19
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
8 pages, 4 figures; To appear in proceedings of ASP, Resolving the Future of Astronomy with Long-Baseline Interferometry, Marc
Scientific paper
Spatially resolving the orbits of double-lined spectroscopic binaries provides a way to measure the dynamical masses of the component stars. At the distances to the nearest star forming regions, high angular resolution techniques are required to resolve these short period systems. In this paper, I provide an overview of the few low-mass pre-main-sequence spectroscopic binaries that have been resolved thus far using long-baseline optical/infrared interferometers. I also compiled a list of known spectroscopic binaries in nearby star forming regions (Taurus, Orion, Ophiuchus, Scorpius-Centaurus, etc.) and show that with modest improvements in the sensitivity of interferometers with 200-300 meter baselines, we can build a significant set of pre-main sequence stars with precise mass determinations. This is important for validating and distinguishing among the theoretical calculations of evolution for young stars.
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