The CS molecule in diffuse interstellar clouds

Details The CS molecule in diffuse interstellar clouds The CS molecule in diffuse interstellar clouds

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...345..815d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 345, Oct. 15, 1989, p. 815-827.

Astronomy and Astrophysics

Astrophysics

62

Carbon Compounds, Interstellar Matter, Molecular Clouds, Sulfides, Dipole Moments, Interstellar Chemistry, Millimeter Waves, Molecular Collisions, Photodissociation

Scientific paper

The CS J = 2-1 emission line at 98 GHz has been searched for in 10 diffuse molecular clouds. CS column densities are derived by performing statistical equilibrium calculations for the rotational population distribution which includes collisional excitation by electrons as well as by neutral species. Because CS has a large dipole moment, the electron collisions completely dominate the CS excitation in diffuse clouds, where the electron fraction is high. This result suggests that, in general, molecules with large dipole moments may be relatively more detectable by millimeter emission in diffuse clouds than in dense clouds. A detailed model of the gas-phase sulfur chemistry in diffuse clouds is developed to interpret the observations.

Affiliated with

Also associated with

No associations

Rating

The CS molecule in diffuse interstellar 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 The CS molecule in diffuse interstellar clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The CS molecule in diffuse interstellar clouds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1528231