PAGANI, L.; BACMANN, A.; CABRIT, S.; VASTEL, C.

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PAGANI, L.
Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]

BACMANN, A.
European Southern Observatory [ESO]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]

CABRIT, S.
Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]

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Communication dans un congrès

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Molecules in Space and Laboratory, meeting held in Paris, France, May 14-18, 2007, 2007, Paris.

Resumen en inglés

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.< Leer menos

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Observations

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Laboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804