期刊
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
卷 244, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.3847/1538-4365/ab3925
关键词
galaxies: general; galaxies: ISM; galaxies: spiral; galaxies: star formation; infrared: galaxies; ultraviolet: galaxies
资金
- OSU Center for Cosmology and Astroparticle Astrophysics
- NASA ADAP grants [NNX16AF48G, NNX17AF39G]
- National Science Foundation [1615728, 1615105, 1615109, 1653300]
- NASA
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1615728] Funding Source: National Science Foundation
- NASA [905462, NNX17AF39G, 1001327, NNX16AF48G] Funding Source: Federal RePORTER
We present an atlas of ultraviolet and infrared images of similar to 15,750 local (d less than or similar to 50 Mpc) galaxies, as observed by NASA's Wide-field Infrared Survey Explorer (WISE) and Galaxy Evolution Explorer (GALEX) missions. These maps have matched resolution (FWHM 7 ''.5 and 15 ''), matched astrometry, and a common procedure for background removal. We demonstrate that they agree well with resolved intensity measurements and integrated photometry from previous surveys. This atlas represents the first part of a program (the z = 0 Multiwavelength Galaxy Synthesis) to create a large, uniform database of resolved measurements of gas and dust in nearby galaxies. The images and associated catalogs will be publicly available at the NASA/IPAC Infrared Science Archive. This atlas allows us estimate local and integrated star formation rates (SFRs) and stellar masses (M-*) across the local galaxy population in a uniform way. In the appendix, we use the population synthesis fits of Salim et al. to calibrate integrated M-* and SFR estimators based on GALEX and WISE. Because they leverage a Sloan Digital Sky Survey (SDSS)-based training set of >100,000 galaxies, these calibrations have high precision and allow us to rigorously compare local galaxies to SDSS results. We provide these SFR and M-* estimates for all galaxies in our sample and show that our results yield a main sequence of star-forming galaxies comparable to previous work. We also show the distribution of intensities from resolved galaxies in NUV-to-WISE1 versus WISE1-to-WISE3 space, which captures much of the key physics accessed by these bands.
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