A CO J = 2 - 1 study of the outflow sources GL 490, GL 2591, M8E-IR, and W3 IRS 5

Abstract

view Abstract Citations (56) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A CO J = 21 Study of the Outflow Sources GL 490, GS 2591, M8E-IR, and W3 IRS 5 Mitchell, George F. ; Hasegawa, Tatsuhiko I. ; Schella, Jason Abstract Results are presented of the mapping, at 21-arcsec resolution, of the CO J = 2 - 1 emission from four high-velocity sources. Observations of (C-13) J = 2 - 1 are combined with the (C-12)O data to determine the mass, dynamical times scales, and mass-loss rates of the outflowing gas. A comparison is made between the momentum and mass-loss rates of CO outflows previously found from GL 2591, M8E-IR, and W3 IRS 5 using the fundamental vibrational band of CO in the IR, and the momentum and mass-loss rates obtained in this paper from CO emission line data. It is concluded from the comparison that a suggested direct causal link between the IR outflows and the extended bipolar flows remains feasible, but is, as yet, unproven. Publication: The Astrophysical Journal Pub Date: February 1992 DOI: 10.1086/171042 Bibcode: 1992ApJ...386..604M Keywords: Carbon Monoxide; Infrared Sources (Astronomy); Interstellar Gas; Molecular Clouds; Molecular Flow; Bipolarity; Emission Spectra; Gas Flow; Line Spectra; Spectrum Analysis; Astrophysics; ISM: JETS AND OUTFLOWS; ISM: KINEMATICS AND DYNAMICS; RADIO LINES: MOLECULAR: INTERSTELLAR full text sources ADS | data products SIMBAD (4)