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- W274427043 abstract "Goals • We present results of a pilot study that uses WISE, archival UV data, and a new resolution enhancement technique to explore two long-standing hypotheses of the global star formation (SF) in spiral galaxies: (i) spiral density waves directly trigger SF through large-scale shocks along arms, or (ii) density waves simply reorganize and concentrate the ISM, stars and HII regions, and SF is induced by local (possibly self-propagating) stochastic processes, e.g., supernova shocks. • Scenario (i) predicts an enhancement in the specific star formation rate (SSFR = SFR normalized to unit mass of disk material) along arms, mostly at their leading edge. (ii) predicts a spatially uniform SSFR across the disk. (i) was supported by Seigar & James (2002) using Hα and K-band data, while (ii) was recently supported by Foyle et al. (2010) using Spitzer, GALEX and CO data. • In general, does the global SF mechanism vary with Hubble type, early vs late type, barred/nonbarred morphology, spiral-arm pitch-angle, arm strength, total galaxy mass, and environment? • Exploit and validate the use of WISE for nearby galaxy research, in particular the 12μm band. • Advertise the benefits of resolution enhancement (HiRes) for WISE using a custom-built tool. This allows matching of spatial resolutions across wavelengths, in particular with archival data." @default.
- W274427043 created "2016-06-24" @default.
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- W274427043 date "2011-01-01" @default.
- W274427043 modified "2023-09-27" @default.
- W274427043 title "A WISE View of Nearby Spiral Galaxies: mapping the spatial distribution of star formation and stellar mass along the Hubble sequence" @default.
- W274427043 hasPublicationYear "2011" @default.
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