Chemical evolution in collapsing cores

Details Chemical evolution in collapsing cores Chemical evolution in collapsing cores

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.292..481e&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 292, p. 481

Astronomy and Astrophysics

Astronomy

11

Interstellar Chemistry, Chemical Evolution, Molecular Clouds, Hydrodynamic Equations, Ion Production Rates, Reaction Kinetics, Cosmic Rays, Astronomical Models

Scientific paper

We study the chemical evolution in the central core of contracting interstellar clouds. The chemical rate equations and the hydrodynamic equations are integrated simultaneously. The contraction is followed from very low density (n = 10/cu cm) to a high-density core with n above 10 exp 7/cu cm. The chemical evolution is studied for various physical and chemical conditions, including the effects of varying the cosmic ray ionization rate, in order to understand the observed structures in TMC-1 and the extended ridge cloud in Orion. Our results give good agreement with the observations for models with fast ion-dipole reaction rates, low cosmic ray ionization rates and low depletion of N and S. It is also found that there should be different stages of evolution with different densities in these sources.

Affiliated with

Also associated with

No associations

Rating

Chemical evolution in collapsing cores 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 Chemical evolution in collapsing cores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical evolution in collapsing cores will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1662396