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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 661002.0, MPI für Astronomie / Publikationen_mpia
Herschel far-infrared and submillimeter photometry for the KINGFISH sample of nearby galaxies
Authors:Dale, D. A.; Aniano, G.; Engelbracht, C. W.; Hinz, J. L.; Krause, O.; Montiel, E. J.; Roussel, H.; Appleton, P. N.; Armus, L.; Beirão, P.; Bolatto, A. D.; Brandl, B. R.; Calzetti, D.; Crocker, A. F.; Croxall, K. V.; Draine, B. T.; Galametz, M.; Gordon, K. D.; Groves, B. A.; Hao, C. -. N.; Helou, G.; Hunt, L. K.; Johnson, B. D.; Kennicutt, R. C.; Koda, J.; Leroy, A. K.; Li, Y.; Meidt, S. E.; Miller, A. E.; Murphy, E. J.; Rahman, N.; Rix, H. -. W.; Sandstrom, K. M.; Sauvage, M.; Schinnerer, E.; Skibba, R. A.; Smith, J.-D.; Tabatabaei, F. S.; Walter, F.; Wilson, C. D.; Wolfire, M. G.; Zibetti, S.
Date of Publication (YYYY-MM-DD):2012
Journal Abbrev.:The Astrophysical Journal
Issue / Number:1
Start Page:id. 95
Audience:Not Specified
Abstract / Description:New far-infrared and submillimeter photometry from the Herschel Space Observatory is presented for 61 nearby galaxies from the Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel (KINGFISH) sample. The spatially integrated fluxes are largely consistent with expectations based on Spitzer far-infrared photometry and extrapolations to longer wavelengths using popular dust emission models. Dwarf irregular galaxies are notable exceptions, as already noted by other authors, as their 500 μm emission shows evidence for a submillimeter excess. In addition, the fraction of dust heating attributed to intense radiation fields associated with photodissociation regions is found to be (21 ± 4)% larger when Herschel data are included in the analysis. Dust masses obtained from the dust emission models of Draine & Li are found to be on average nearly a factor of two higher than those based on single-temperature modified blackbodies, as single blackbody curves do not capture the full range of dust temperatures inherent to any galaxy. The discrepancy is largest for galaxies exhibiting the coolest far-infrared colors.
Free Keywords:galaxies: ISM; infrared: ISM; ISM: general
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
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