Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...386..248b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 386, Feb. 10, 1992, p. 248-259.
Astronomy and Astrophysics
Astronomy
42
Infrared Sources (Astronomy), Pre-Main Sequence Stars, Sky Surveys (Astronomy), Star Formation, Dwarf Stars, Infrared Astronomy Satellite, Stellar Luminosity, Taurus Constellation
Scientific paper
A deep infrared survey of a 187 sq deg region in Taurus using the IRAS Faint Source Survey reveals 63 multiband objects selected on the basis of their infrared properties. Two-thirds of the sample are previously uncataloged and are most likely either deeply embedded objects or unidentified T Tauri stars. Complete IRAS data are presented for these objects. The sample is estimated to be more than 90 percent complete for objects emitting L equal to or greater than 0.1 solar luminosity between 12 and 60 microns. The luminosity function shows a decline at luminosities below 0.3 solar luminosity. The formation of a massive, 0.1 solar mass, disk of circumstellar material serving as a reservoir for infalling cloud material represents a possible resolution of the problem. A population of unresolved sources emitting only at 60 microns is also identified. If any of these objects are self-luminous, they may represent the youngest protostellar objects yet observed.
Beichman Charles Arnold
Boulanger Francois
Moshir Mehdrdad
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