CO (3 to 21) mapping and gas excitation in the core of M82

Details CO (3 to 21) mapping and gas excitation in the core of M82 CO (3 to 21) mapping and gas excitation in the core of M82

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...376..500t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 376, Aug. 1, 1991, p. 500-504.

Other

35

Carbon Monoxide, Cosmic Gases, Galactic Nuclei, Interstellar Matter, Abundance, Astronomical Maps, Carbon 13, Molecular Clouds, Starburst Galaxies

Scientific paper

A 14-arcsec FWHM beam has been used to observe the CO (3 to 21) emission in the central region of M82; the map thus obtained clearly shows the double-peaked structure, seen at other wavelengths, which has been interpreted as a circumnuclear ring. The first (C-13)O (3 to 2) detections in M82 are also reported. Using a large velocity gradient model, the six lines constituting the three lowest transitions of (C-12)O and (C-13)O allow a direct determination to be made of the properties of the molecular gas in M82; the ratios of these lines are rather unusual, and cannot be reproduced with a standard one-component model. A one-component model with a lowered (C-12)O/(C-13)O abundance ratio with values below 25, similar to those at the center of the Galaxy, yields a significantly better fit to all of the CO lines.

Affiliated with

Also associated with

No associations

Rating

CO (3 to 21) mapping and gas excitation in the core of M82 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with CO (3 to 21) mapping and gas excitation in the core of M82, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CO (3 to 21) mapping and gas excitation in the core of M82 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1725044