Heating the Gas in Photodissociation Fronts

Details Heating the Gas in Photodissociation Fronts Heating the Gas in Photodissociation Fronts

1999-02-26

arxiv.org/abs/astro-ph/9902379v1

Astronomy and Astrophysics

Astrophysics

Latex, 7 pages, 8 figs, uses iso98.sty (included). To appear in The Universe as Seen by ISO

Scientific paper

ISO has provided us with a new perspective on gas temperatures in photodissociation regions through measurements of line emission from rotationally-excited levels of the H_2 molecule. The H_2 rotational level populations provide a thermal probe, showing that gas temperatures T_gas approx 500-1000 K prevail in a portion of the PDR where significant quantities of H_2 are present. Such high gas temperatures were unexpected. Theoretical models for the S140 PDR are presented. Possible mechanisms for heating the gas to such high temperatures are discussed.

Affiliated with

Also associated with

No associations

Rating

Heating the Gas in Photodissociation Fronts 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 Heating the Gas in Photodissociation Fronts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heating the Gas in Photodissociation Fronts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-368544