Hot gas in the nucleus of IC 342 - Detection of J = 3-2 CO emission

Details Hot gas in the nucleus of IC 342 - Detection of J = 3-2 CO emission Hot gas in the nucleus of IC 342 - Detection of J = 3-2 CO emission

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...322l..67h&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 322, Nov. 15, 1987, p. L67-L71.

Astronomy and Astrophysics

Astrophysics

34

Barred Galaxies, Carbon Monoxide, Galactic Nuclei, High Temperature Gases, Interstellar Gas, Infrared Spectra, Molecular Spectra, Star Formation

Scientific paper

The J = 3-2 CO line is detected for the first time in an external galaxy, in the nearby spiral IC 342. It is shown that in contrast to the J = 1-0 CO line, which favors optically thick and cool gas, the J = 3-2 CO line can be used to study a hot component in extragalactic nuclear environment. Limited mapping results suggest that the J = 3-2 CO emission arises from the same regions as the J = 1-0 CO emission. It is therefore likely that hot gas and strong star-formation activities are closely associated with the central molecular gas bar.

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