Journal article
THE CO-TO-H2 CONVERSION FACTOR AND DUST-TO-GAS RATIO ON KILOPARSEC SCALES IN NEARBY GALAXIES
Abstract
We present ∼kiloparsec spatial resolution maps of the CO-to-H2 conversion factor (αCO) and dust-to-gas ratio (DGR) in 26 nearby, star-forming galaxies. We have simultaneously solved for αCO and the DGR by assuming that the DGR is approximately constant on kiloparsec scales. With this assumption, we can combine maps of dust mass surface density, CO-integrated intensity, and H i column density to solve for both αCO and the DGR with no assumptions …
Authors
Sandstrom KM; Leroy AK; Walter F; Bolatto AD; Croxall KV; Draine BT; Wilson CD; Wolfire M; Calzetti D; Kennicutt RC
Journal
The Astrophysical Journal, Vol. 777, No. 1,
Publisher
American Astronomical Society
Publication Date
November 1, 2013
DOI
10.1088/0004-637x/777/1/5
ISSN
0004-637X