ScholarWorks@UMass Amherst

Title

MOLECULAR ABUNDANCES IN THE SAGITTARIUS-A MOLECULAR CLOUD

Authors

YC MINH
William M. Irvine, University of Massachusetts - AmherstFollow
P FRIBERG

Publication Date

1992

Journal or Book Title

ASTRONOMY AND ASTROPHYSICS

Abstract

We have obtained column densities for HCO(+), HCO, HCS(+), C3H2, HC5N, SiO, OCS, HCOOH, CH3CH2OH, and CH3CCH toward Sgr A. The fractional abundance of SiO relative to molecular hydrogen in Sgr A is comparable to that for the Orion plateau, about 10 exp-7 to 10 exp -8, which may be a typical value for hot clouds. The abundances of HCO, CH3CH2OH, and CH3CCH all appear to be enhanced relative to other molecular clouds such as Sgr B2.

Comments

The published version is located at http://adsabs.harvard.edu/full/1992A%26A...258..489M

Pages

489-494

Volume

258

Issue

2

Recommended Citation

MINH, YC; Irvine, William M.; and FRIBERG, P, "MOLECULAR ABUNDANCES IN THE SAGITTARIUS-A MOLECULAR CLOUD" (1992). ASTRONOMY AND ASTROPHYSICS. 235.
Retrieved from https://scholarworks.umass.edu/astro_faculty_pubs/235