SIMBAD references

2009ApJ...705.1160C - Astrophys. J., 705, 1160-1172 (2009/November-2)

The Spitzer c2d survey of nearby dense cores. VII. Chemistry and dynamics in L43.

CHEN J.-H., EVANS N.J., LEE J.-E. and BOURKE T.L.

Abstract (from CDS):

We present results from the Spitzer Space Telescope and molecular line observations of nine species toward the dark cloud L43. The Spitzer images and molecular line maps suggest that it has a starless core and a Class I protostar evolving in the same environment. CO depletion is seen in both sources, and DCO+ lines are stronger toward the starless core. With a goal of testing the chemical characteristics from pre- to protostellar stages, we adopt an evolutionary chemical model to calculate the molecular abundances and compare with our observations. Among the different model parameters we tested, the best-fit model suggests a longer total timescale at the pre-protostellar stage, but with faster evolution at the later steps with higher densities.

Abstract Copyright:

Journal keyword(s): ISM: individual (L43, RNO91) - stars: formation

Simbad objects: 5

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