Measuring Fundamental Parameters of Substellar Objects. II. Masses and Radii
نویسندگان
چکیده
منابع مشابه
Measuring Fundamental Parameters of Substellar Objects. II: Masses and Radii
We present mass and radius derivations for a sample of very young, midto late M, low-mass stellar and substellar objects in Upper Scorpius and Taurus. In a previous paper, we determined effective temperatures and surface gravities for these targets, from an analysis of their high-resolution optical spectra and comparisons to the latest synthetic spectra. We now derive extinctions, radii, masses...
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We present an analysis of high resolution optical spectra for a sample of very young, midto late M, low-mass stellar and substellar objects: 11 in the Upper Scorpius association, and 2 (GG Tau Ba and Bb) in the Taurus star-forming region. Effective temperatures and surface gravities are derived from a multifeature spectral analysis using TiO, Na I and K I , through comparison with the latest sy...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2004
ISSN: 0004-637X,1538-4357
DOI: 10.1086/420924