Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...352..615m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 352, April 1, 1990, p. 615-624.
Astronomy and Astrophysics
Astronomy
30
Gas Flow, Infrared Spectra, Molecular Clouds, Stellar Luminosity, Stellar Radiation, Carbon Monoxide, Gas Density, Hydrogen, Infrared Astronomy Satellite, Red Shift
Scientific paper
Detailed observations of CO, CS, IR continuum, and H2 emission from a large, highly collimated, bipolar outflow in the Monoceros OB1 molecular cloud are presented. The CO observations suggest that molecular gas in the outflow is contained in a shell with higher velocity material situated interior to lower velocity material. The velocities of outflow emission are found to increase with increasing distance from the center of the outflow. Additional detections include shock-excited molecular hydrogen emission from the blueshifted lobe of the outflow and six 2-micron sources in the direction of the outflow. Near-IR and IRAS observations suggest that the driving source for the outflow must have a bolometric luminosity below about 4.5 solar luminosities. It is concluded that the flow is probably not driven by stellar radiation from a central source.
Gatley Ian
Greene Thomas P.
Hasegawa Tetsuo
Hayashi Masahiko
Hayashi Saeko Suzuki
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