Mathematics – Probability
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.7308a&link_type=abstract
American Astronomical Society, 193rd AAS Meeting, #73.08; Bulletin of the American Astronomical Society, Vol. 30, p.1362
Mathematics
Probability
Scientific paper
We present a lambda =3mm continuum image of the young binary, T Tauri, at sub-arcsecond resolution. This system comprises an optically visible component, T Tau N, and an infrared companion, T Tau S, separated by 0\farcs7. At a resolution of 0\farcs5, the compact dust emission is centered at the position of T Tau N\null, with an integrated flux density of 50 +/- 6 mJy. No emission is detected at the position of the infrared companion with a 3sigma upper limit of 9 mJy. We infer that the continuum arises from a circumstellar disk around T Tau N and estimate its properties by fitting a flat-disk model to measurements at lambda = 1, 3 and 7 mm. Given the data, probability distributions are calculated for values of the free parameters, including the temperature, density, dust opacity, and the disk outer radius. The mostly likely value for the total disk mass is similar to disk masses derived for single pre-main-sequence stars and to the minimum mass solar nebula.
Akeson Rachel Lynn
Jensen Eric L. N.
Koerner David William
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