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Herschel Far-Infrared and Submillimeter Photometry for the Kingfish Sample of Nearby Galaxies

Dale, D. A. and Appleton, P. N. and Armus, L. and Beirão, P. and Helou, G. and Murphy, E. J. (2012) Herschel Far-Infrared and Submillimeter Photometry for the Kingfish Sample of Nearby Galaxies. Astrophysical Journal, 745 (1). Art. No. 95. ISSN 0004-637X. doi:10.1088/0004-637X/745/1/95. https://resolver.caltech.edu/CaltechAUTHORS:20120402-101320344

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0004-637X/745/1/95DOIArticle
http://iopscience.iop.org/0004-637X/745/1/95/PublisherArticle
ORCID:
AuthorORCID
Dale, D. A.0000-0002-5782-9093
Appleton, P. N.0000-0002-7607-8766
Armus, L.0000-0003-3498-2973
Helou, G.0000-0003-3367-3415
Murphy, E. J.0000-0001-7089-7325
Additional Information:© 2012 American Astronomical Society. Received 2011 October 25; accepted 2011 December 4; published 2012 January 4. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. IRAF, the Image Reduction and Analysis Facility, has been developed by the National Optical Astronomy Observatories and the Space Telescope Science Institute.
Group:Infrared Processing and Analysis Center (IPAC)
Subject Keywords:galaxies: ISM; infrared: ISM; ISM: general
Issue or Number:1
DOI:10.1088/0004-637X/745/1/95
Record Number:CaltechAUTHORS:20120402-101320344
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20120402-101320344
Official Citation:Herschel Far-infrared and Submillimeter Photometry for the KINGFISH Sample of nearby Galaxies D. A. Dale et al. 2012 ApJ 745 95
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29933
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:02 Apr 2012 17:44
Last Modified:09 Nov 2021 19:32

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