Observation of Infrared and Radio Lines of Molecules toward GL2591 and Comparison to Physical and Chemical Models

Details Observation of Infrared and Radio Lines of Molecules toward GL2591 and Comparison to Physical and Chemical Models Observation of Infrared and Radio Lines of Molecules toward GL2591 and Comparison to Physical and Chemical Models

1995-05-24

arxiv.org/abs/astro-ph/9505115v1

Astronomy and Astrophysics

Astrophysics

34 pages, postscript with 14 postscript figure files, uuencoded compressed and tar'ed; unpacks self with csh. In case of probl

Scientific paper

10.1086/176174

We have observed rovibrational transitions of acetylene and HCN near 13 microns in absorption toward GL2591. We also observed rotational lines of CS, HCN, H2CO, and HCO+. The combined data are analyzed in terms of models with a cloud envelope with density gradients and discrete regions of hot, dense gas, probably near the infrared source. The abundance of HCN is enhanced by a factor of 400 in the gas producing the infrared absorption, in agreement with chemical models which involve depletion of molecules onto grains and subsequent sublimation when temperatures are raised.

Affiliated with

Also associated with

No associations

Rating

Observation of Infrared and Radio Lines of Molecules toward GL2591 and Comparison to Physical and Chemical Models 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 Observation of Infrared and Radio Lines of Molecules toward GL2591 and Comparison to Physical and Chemical Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of Infrared and Radio Lines of Molecules toward GL2591 and Comparison to Physical and Chemical Models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-95146