Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990stin...9119976g&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Carbon 13, Molecular Clouds, Star Formation, Submillimeter Waves, Carbon 12, Lines, Orion Constellation, Orion Nebula, Photodissociation, Radiant Heating, Shock Heating
Scientific paper
The first astronomical detection of the transition of J from 6 to 5 in isotopic CO-13 emission at 661 GHz from the molecular clouds in Orion A and in NGC 2024 is reported. Large column densities of warm, dense, molecular gas are reported in star formation regions, and correspond to greater than 30 percent of the molecular gas mass in this region. They are difficult to explain by present theoretical heating models where the lines and narrow shock heating is unlikely. The correlation of warm CO column density with UV intensity is indicated and favors heating by UV radiation. However, present photodissociation region models fail to predict the large quantities of warm gas detected.
Genzel Reinhard
Graf Urs U.
Harris Andrew I.
Hills Richard E.
Russell Adrian P. G.
No associations
LandOfFree
Detection of an isotopic short submillimeter CO line: Column densities of warm gas in molecular clouds 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 Detection of an isotopic short submillimeter CO line: Column densities of warm gas in molecular clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of an isotopic short submillimeter CO line: Column densities of warm gas in molecular clouds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1250913