Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...319..340m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 319, Aug. 1, 1987, p. 340-357. Research supported by the Research Corp.
Astronomy and Astrophysics
Astronomy
379
Infrared Sources (Astronomy), Molecular Clouds, Pre-Main Sequence Stars, Stellar Cores, Stellar Models, Astronomical Photometry, Infrared Astronomy Satellite, Interstellar Extinction, Stellar Luminosity, T Tauri Stars
Scientific paper
The authors report photometry from 0.4 to 20 μm of 34 IRAS point sources associated with dense cores in dark clouds. The main results of this study are: (1) Stars near cores tend to be visible T Tauri stars, while stars in cores tend to have circumstellar extinction AV ≡ 30 - 90 mag and luminosity ≡1 L_sun;, similar to that of T Tauri stars. (2) The typical highly obscured star is probably accompanied by a luminous structure of substellar temperature, such as a circumstellar disk. (3) In Taurus-Aurigae, stars in cores probably become visible T Tauri stars less than 1×105yr after they attain luminosity greater than ≡0.1 L_sun;. This implies that they are extremely young and may still be accreting.
Beichman Charles Arnold
Benson Priscilla J.
Emerson James P.
Fuller Gary A.
Mathieu Robert D.
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