L183 (=L134N) revisited : the physical conditions in the main prestellar core

Details L183 (=L134N) revisited : the physical conditions in the main prestellar core L183 (=L134N) revisited : the physical conditions in the main prestellar core

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007msl..confe..32p&link_type=abstract

"Molecules in Space and Laboratory, meeting held in Paris, France, May 14-18, 2007. Editors: J.L. Lemaire, F. Combes. ISBN: 9782

Astronomy and Astrophysics

Astrophysics

Observations

Scientific paper

We continue the detailed study of L183 with the observations of N-bearing species (N2H+, N2D+, NH3) which allow to trace the physical conditions in the most inner parts of prestellar cores where standard tracers are completely depleted. With the help of our new 1D Monte-Carlo code which treats the hyperfine structure of N2H+ in detail, we are able to trace the density, temperature and N2H+/N2D+ abundance profiles of the core and also its kinematical properties. Depletion of N2H+, very cold gas and a peculiar rotational pattern are revealed.

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