Deuterated Molecules as Evolutionary Indicators of Class 0 Protostars

Details Deuterated Molecules as Evolutionary Indicators of Class 0 Protostars Deuterated Molecules as Evolutionary Indicators of Class 0 Protostars

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007msl..confe..21e&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 investigated the deuterium fractionation of N2H+ in a sample of 20 Class 0 protostars. Since most deuterated molecules are only abundant in a cold and dense environment, we expected the N2D+/N2H+ ratio to be a good tracer of the evolutionary stage of a young protostar. We found indeed a good correlation of this ratio and the dust temperature, determined by continuum data at wavelength from 1 mm to 60 μm, and the CO depletion factor.

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