Masses and Distance of the Young Binary NTTS 045251+3016
Abstract
As part of our continuing campaign to measure the masses of pre-main sequence stars dynamically and thus to assess the reliability of the discrepant theoretical calculations of contraction to the main sequence, we present new results for NTTS 045251+3016, a visual and double-lined spectroscopic binary in the Taurus Star Forming Region. We obtained new high angular resolution astrometry and high spectral resolution spectroscopy at Keck Observatory. The new data lead to a significant revision of previously published orbital parameters. In particular, we find that the masses of the primary and secondary are 0.86+/-0.11 and 0.55+/-0.05 M_sun, respectively, smaller than previously reported, and that the system lies 158.7+/-3.9 pc from the sun, further than previously reported.
Keywords
Cite
@article{arxiv.1306.4393,
title = {Masses and Distance of the Young Binary NTTS 045251+3016},
author = {M. Simon and G. H. Schaefer and L. Prato and Dary Ruiz-Rodriguez and N. Karnath and O. G. Franz and L. H. Wasserman},
journal= {arXiv preprint arXiv:1306.4393},
year = {2015}
}
Comments
36pp; accepted for publication in the ApJ