SIMBAD references

2016ApJS..225...25G - Astrophys. J., Suppl. Ser., 225, 25-25 (2016/August-0)

A new reference chemical composition for TMC-1.

GRATIER P., MAJUMDAR L., OHISHI M., ROUEFF E., LOISON J.C., HICKSON K.M. and WAKELAM V.

Abstract (from CDS):

Recent detections of complex organic molecules in dark clouds have rekindled interest in the astrochemical modeling of these environments. Because of its relative closeness and rich molecular complexity, TMC-1 has been extensively observed to study the chemical processes taking place in dark clouds. We use local thermodynamical equilibrium radiative transfer modeling coupled with a Bayesian statistical method which takes into account outliers to analyze the data from the Nobeyama spectral survey of TMC-1 between 8 and 50 GHz. We compute the abundance relative to molecular hydrogen of 57 molecules, including 19 isotopologues in TMC-1 along with their associated uncertainty. The new results are in general agreement with previous abundance determination from Ohishi & Kaifu and the values reported in the review from Agundez & Wakelam. However, in some cases, large opacity and low signal to noise effects allow only upper or lower limits to be derived, respectively.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrochemistry - ISM: abundances - methods: statistical - methods: statistical

Simbad objects: 8

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2019.12.14-19:19:45

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