Observations of suspected low-mass ost-T Tauri stars and their evolutionary status

Mundt, Reinhard and Walter, Frederick M. and Feigelson, Eric D. and Finkenzeller, Ulrich and Herbig, George H. and Odell, Andrew P. (1983) Observations of suspected low-mass ost-T Tauri stars and their evolutionary status. Astrophysical Journal, 269 (1). pp. 229-238. ISSN 1538-4357

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Abstract

We present the results of a study of five X-ray discovered weak emission pre-main-sequence stars in the Taurus-Auriga star formation complex. All are of spectral type K7-M0, and about 1-2 mag above the main sequence. One is double-lined spectroscopic binary, the first spectroscopic binary PMS star to be confirmed. We discuss the ages, masses, and radii of these stars as determined by photometry and spectroscopy. We investigate the difference in emission strength between these and the T Tauri stars and conclude that these "post-T Tauri" do indeed appear more evolved than the T Tauri, although there is no evidence of any significant difference in ages.

Item Type:	Article
Publisher’s Statement:	Copyright 1983. American Astronomical Society.
ID number or DOI:	10.1086/161033
Keywords:	stars, pre-main-sequence, x-rays, sources
Subjects:	Q Science > QB Astronomy
NAU Depositing Author Academic Status:	Faculty/Staff
Department/Unit:	College of Engineering, Forestry, and Natural Science > Physics and Astronomy
Date Deposited:	08 Jan 2016 19:55
URI:	http://openknowledge.nau.edu/id/eprint/414

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