High density molecular gas in the Rho Ophiuchi cloud

Details High density molecular gas in the Rho Ophiuchi cloud High density molecular gas in the Rho Ophiuchi cloud

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...117..145m&link_type=abstract

Astronomy and Astrophysics, vol. 117, no. 1, Jan. 1983, p. 145-148.

Astronomy and Astrophysics

Astrophysics

23

Astronomical Maps, Emission Spectra, Formaldehyde, Molecular Clouds, Stellar Evolution, Ammonia, Brightness Temperature, Kinetic Energy, Radial Velocity

Scientific paper

A fully sampled one-arcmin resolution map of the H2CO emission at 14 GHz discovered by Loren et al. (1980) is presented. A value was found for peak emission, and it is noted that it occurs one arcmin south of the center position given by Loren et al. The region extends northwest to southeast, having a major axis at about 37 degrees west of north. There are no systematic variations of radial velocity or linewidth. At peak position, observations of the 1(10)-1(11) line of H2CO yield only absorption. Measurements of the (1,1) and (2,2) lines of NH3 toward the center of the emission region suggest that the kinetic temperature in the higher density region is 13 plus or minus 3 K.

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