Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...321..370h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 321, Oct. 1, 1987, p. 370-382.
Astronomy and Astrophysics
Astronomy
74
Carbon Monoxide, Infrared Spectra, Interstellar Gas, Molecular Gases, Point Sources, Pre-Main Sequence Stars, Taurus Constellation, Astronomical Spectroscopy, High Speed, Infrared Astronomy Satellite, Star Formation, Stellar Winds, T Tauri Stars
Scientific paper
A sample of young stellar objects selected from the IRAS Point Source Catalog (1985) has been surveyed for the presence of high-velocity (C-12)O J = 1-0 emission with the Five College Radio Astronomy Observatory 14-m telescope. Three new molecular outflows have been detected from this survey. The high-velocity emission from these regions is dominated by redshifted material indicative of monopolar outflow. The energy injection rate from all stellar winds within the Taurus cloud complex is compared to the energy dissipation rate due to radiative collisions of clumps. It is uncertain, based on these observations, that the stellar winds can provide the energy necessary to sustain the supersonic turbulent motions which characterize molecular clouds. From a map of (C-13)O J = 1-0 emission of the B18 cloud, the ring of enhanced line widths detected from an earlier study of (C-12)O J = 1-0 emission is confirmed. This ring may be due to the cumulative interaction of accelerated shells driven by stellar winds from several T Tauri stars associated with the cloud.
Goldsmith Paul F.
Heyer Mark H.
Myers Philip C.
Snell Ronald L.
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