Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...285l..79c&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 285, Oct. 15, 1984, p. L79-L83.
Astronomy and Astrophysics
Astronomy
32
Emission Spectra, Infrared Stars, Interferometry, Molecular Clouds, Radio Sources (Astronomy), Stellar Evolution, Astronomical Maps, Carbon Monoxide, Millimeter Waves, Radial Velocity, Synthetic Apertures
Scientific paper
The first aperture synthesis maps of (C-12)(O) (J = 1-0) emission from a galactic star-forming region are presented. The line and continuum emission from a 1 arcmin field centered on W3 IRS5 have been mapped with the Owens Valley millimeter-wave interferometer. Although no radio continuum emission from IRS5 was detected to a five sigma limit of 130 mJy, compact sources of high velocity red- and blue-shifted CO emission with T(B) of about 20 K were found associated with IRS5. The estimated mass in each wing is one solar mass, with density of about 100,000/cu cm. The outflow is similar to other known sources with high-velocity emission and has a short dynamic lifetime such as found in Orion. It is suggested that the two infrared sources which comprise IRS5 are in differing stages of evolution.
Berge Glenn L.
Claussen Mark J.
Heiligman Gary M.
Leighton Robert B.
Lo Kwok Yung
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