Journal article
FIRST EXTRAGALACTIC DETECTION OF SUBMILLIMETER CH ROTATIONAL LINES FROM THE HERSCHEL SPACE OBSERVATORY
Abstract
We present the first extragalactic detections of several CH rotational transitions in the far-infrared in four nearby galaxies, NGC 1068, Arp 220, M82, and NGC 253, using the Herschel Space Observatory. The CH lines in all four galaxies are a factor of 2–4 brighter than the adjacent HCN and HCO+ J = 6–5 lines (also detected in the same spectra). In the star-formation-dominated galaxies, M82, NGC 253, and Arp 220, the CH/CO abundance ratio is …
Authors
Rangwala N; Maloney PR; Glenn J; Wilson CD; Kamenetzky J; Schirm MRP; Spinoglio L; Santaella MP
Journal
The Astrophysical Journal, Vol. 788, No. 2,
Publisher
American Astronomical Society
Publication Date
June 20, 2014
DOI
10.1088/0004-637x/788/2/147
ISSN
0004-637X