Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...309l..47w&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 309, Oct. 1, 1986, p. L47-L51.
Astronomy and Astrophysics
Astronomy
144
Astronomical Spectroscopy, Infrared Sources (Astronomy), Molecular Clouds, Ophiuchi Clouds, Stellar Evolution, Emission Spectra, Line Spectra, Millimeter Waves, Pre-Main Sequence Stars, Protostars, Spectral Energy Distribution
Scientific paper
IRAS 16293-2422 is an extremely cold infrared source associated with a high velocity molecular outflow in the Rho Ophiuchi molecular cloud. The authors report millimeter-wave continuum (λ ≅ 1.3 mm) observations and spectral line observations of the J = 5-4 and J = 2-1 transitions of CS in both common and rare isotopic species toward this source. These observations indicate that the source is a dust-enshrouded object embedded in a dense elongated configuration of molecular gas whose major axis is roughly orthogonal to the direction of the double bipolar outflow. Moreover, the spectral line data appear to provide spectroscopic evidence for significant mass infall motions associated with a young stellar object and suggest that IRAS 16293-2422 is a true protostar.
Lada Charles J.
Maloney Philip R.
Walker Christopher K.
Wilking Bruce A.
Young Erick T.
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