The nature of the broad molecular line emission at the Kleinmann-Low nebula

Details The nature of the broad molecular line emission at the Kleinmann-Low nebula The nature of the broad molecular line emission at the Kleinmann-Low nebula

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...210l..39k&link_type=abstract

Astrophysical Journal, vol. 210, Nov. 15, 1976, pt. 2, p. L39-L43.

Astronomy and Astrophysics

Astrophysics

178

Carbon Monoxide, Infrared Spectra, Interstellar Radiation, Molecular Spectra, Nebulae, Astronomical Spectroscopy, Gas Expansion, Hydrogen Clouds, Kinetic Energy, Line Shape, Shock Fronts, Spectral Line Width

Scientific paper

We have mapped the high-velocity emission in the wings of the CO line at the Kleinmann-Low infrared nebula. The half-power diameter is found to be 80 arcseconds. Upon analysis of the observed intensity profiles and the variations in angular size at different velocities, we conclude that a differentially expanding envelope, possibly the result of an explosive event, is the most likely explanation. The kinetic energy in the flow is 4 times 10 to the 47th ergs, based on a numerical model of the CO emission. The recently observed v = 1 to 0 radiation of H2 would arise from the shock front preceding the expanding gas.

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