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The CO-to-H2 Conversion Factor and Dust-to-Gas Ratio on Kiloparsec Scales in Nearby Galaxies
K. M. Sandstrom, A. K. Leroy, F. Walter +42
We present kiloparsec (kpc) spatial resolution maps of the CO-to-H2 conversion factor (alpha_co) and dust-to-gas ratio (DGR) in 26 nearby, star-forming galaxies. We have simultaneo…
Quantifying non-star formation associated 8um dust emission in NGC 628
Alison F. Crocker, Daniela Calzetti, David A. Thilker +6
Combining Ha and IRAC images of the nearby spiral galaxy NGC 628, we find that between 30-43% of its 8um dust emission is not related to recent star formation. Contributions from d…
The Herschel Fornax Cluster Survey I: The Bright Galaxy Sample
J. I. Davies, S. Bianchi, M. Baes +18
We present Herschel observations of the Fornax cluster at 100, 160, 250, 350 and 500u with a spatial resolution of 7 - 36 arc sec (10" = 1 kpc at d_Fornax=17.9 Mpc). We define a sa…
The Herschel Virgo Cluster Survey XII: FIR properties of optically-selected Virgo Cluster galaxies
R. Auld, S. Bianchi, M. W. L. Smith +24
The Herschel Virgo Cluster Survey (HeViCS) is the deepest, confusion-limited survey of the Virgo Cluster at far-infrared (FIR) wavelengths. The entire survey at full depth covers $…
Scaling relations of metallicity, stellar mass, and star formation rate in metal-poor starbursts: II. Theoretical models
Laura Magrini, Leslie Hunt, Daniele Galli +6
Scaling relations of metallicity (O/H), star formation rate (SFR), and stellar mass give important insight on galaxy evolution. They are obeyed by most galaxies in the Local Univer…
Scaling relations of metallicity, stellar mass, and star formation rate in metal-poor starbursts: I. A fundamental plane
Leslie Hunt, Laura Magrini, Daniele Galli +6
Most galaxies follow well-defined scaling relations of metallicity (O/H), star formation rate (SFR), and stellar mass. However, low-metallicity starbursts, rare in the Local Univer…