NGC 2264 - A molecular line study

Details NGC 2264 - A molecular line study NGC 2264 - A molecular line study

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...185..283k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 185, no. 1-2, Oct. 1987, p. 283-290.

Astronomy and Astrophysics

Astrophysics

35

Ammonia, Carbon Monoxide, Line Spectra, Molecular Clouds, Molecular Spectra, Star Clusters, Astronomical Maps, Gas Temperature, Spectrum Analysis, Stellar Luminosity

Scientific paper

The authors present an extended ammonia map of the central region of the molecular cloud associated with NGC 2264 together with CO measurements over a wide spectral range of the vicinity of the embedded star IRS 1. The ammonia cloud consists of a northern and a southern part each with a mass of about 500 M_sun;; the southern one is divided into several subclouds with different velocities and temperatures. The heating of these clouds comes from IRS 1 and embedded low-luminosity stars. There is no cogent evidence for rotation anywhere. On a smaller scale, the CO gas around IRS 1 breaks up into cloudlets with rapidly varying kinematics. The authors do not detect a bipolar high-velocity outflow from IRS 1 at their sensitivity level.

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