Aperture synthesis observations of CO emission from the W3 molecular cloud core

Abstract

view Abstract Citations (37) References (20) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Aperture synthesis observations of CO emission from the W3 molecular cloud core. Claussen, M. J. ; Berge, G. L. ; Heiligman, G. M. ; Leighton, R. B. ; Lo, K. Y. ; Masson, C. R. ; Moffet, A. T. ; Phillips, T. G. ; Sargent, A. I. ; Scott, S. L. ; Wannier, P. G. ; Woody, D. P. Abstract 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. Publication: The Astrophysical Journal Pub Date: October 1984 DOI: 10.1086/184370 Bibcode: 1984ApJ...285L..79C Keywords: Emission Spectra; Infrared Stars; Interferometry; Molecular Clouds; Radio Sources (Astronomy); Stellar Evolution; Astronomical Maps; Carbon Monoxide; Millimeter Waves; Radial Velocity; Synthetic Apertures; Astrophysics full text sources ADS | data products SIMBAD (1)