On the formation of it warm molecular layers

Details On the formation of it warm molecular layers On the formation of it warm molecular layers

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...348l..17w&link_type=abstract

Astronomy and Astrophysics, v.348, p.L17-L20 (1999)

Astronomy and Astrophysics

Astrophysics

29

Infrared: Stars, Molecular Processes, Hydrodynamics, Stars: Late-Type, Stars: Circumstellar Matter

Scientific paper

The levitation of the outer atmospheres of AGB stars by pulsations is proposed as possible mechanism to form ``warm molecular layers''. We compare the amounts of CO, H_2O, CO_2 and SO_2 molecules found in an oxygen-rich dynamical model atmosphere with the values derived from recent ISO observations. In the model, the molecules are present in a layered structure behind shock waves which leads to a substantial increase of the column densities in comparison with static models. By additional non-LTE investigations, we calculate the vibrational and rotational excitation temperatures of these molecules and discuss the respective deviations from the kinetic gas temperature in view of the interpretation of the observations.

Affiliated with

Also associated with

No associations

Rating

On the formation of it warm molecular layers 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 On the formation of it warm molecular layers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the formation of it warm molecular layers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1454221