CO J = 3→2 and far infrared continuum observations of L1551, Orion KL and IRC + 10216

Phillips, J. P.; White, Glenn J.; Ade, P. A. R.; Cunningham, C. T.; Robson, E. I. and Watt, G. D. (1982). CO J = 3→2 and far infrared continuum observations of L1551, Orion KL and IRC + 10216. In: Symposium on Neutral Clouds near HII Regions - Dynamics and Photochemistry, 24-26 Jun 1981, Penticton, British Columbia, Canada, pp. 323–328.

URL: http://adsabs.harvard.edu/abs/1982ASSL...93..323P

Abstract

The sources L1551, IRC + 10216, and the Kleinmann-Low nebula possess microwave spectra indicative of mass-outflow at moderate to high velocities. In two of these cases the origin of outflow is probably to be located in newly formed or forming stars. For IRC + 10216 however it seems clear that the progenitor of the outflowing envelope is a late-type variable star. The current investigation is concerned with observations of these sources in the J = 3→2 transitions of CO and with photometry at wavelengths 377, 811, and 1136 micrometers. In L1551 the CO J = 1→0 and J = 2→1 lines show two components, a spike feature of width approximately 1.5 km/s, and a weaker but much broader 'wing' component. J = 3→2 CO spectra for three regions of this complex are shown.

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