Herschel far-infrared and submillimeter photometry for the KINGFISH sample of Nearby Galaxies

D. A. Dale, G. Aniano, C. W. Engelbracht, J. L. Hinz, O. Krause, E. J. Montiel, H. Roussel, P. N. Appleton, L. Armus, P. Beiräo, A. D. Bolatto, B. R. Brandl, D. Calzetti, A. F. Crocker, K. V. Croxall, B. T. Draine, M. Galametz, K. D. Gordon, B. A. Groves, C. N. HaoG. Helou, L. K. Hunt, B. D. Johnson, R. C. Kennicutt, J. Koda, A. K. Leroy, Y. Li, S. E. Meidt, A. E. Miller, E. J. Murphy, N. Rahman, H. W. Rix, K. M. Sandstrom, M. Sauvage, E. Schinnerer, R. A. Skibba, J. D.T. Smith, F. S. Tabatabaei, F. Walter, C. D. Wilson, M. G. Wolfire, S. Zibetti

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Abstract

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.

Original languageEnglish (US)
Article number95
JournalAstrophysical Journal
Volume745
Issue number1
DOIs
StatePublished - Jan 20 2012

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • ISM: general
  • galaxies: ISM
  • infrared: ISM

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    Dale, D. A., Aniano, G., Engelbracht, C. W., Hinz, J. L., Krause, O., Montiel, E. J., Roussel, H., Appleton, P. N., Armus, L., Beiräo, 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., ... Zibetti, S. (2012). Herschel far-infrared and submillimeter photometry for the KINGFISH sample of Nearby Galaxies. Astrophysical Journal, 745(1), [95]. https://doi.org/10.1088/0004-637X/745/1/95