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The Herschel Virgo Cluster Survey. IV. Resolved dust analysis of spiral galaxies

Smith, M. W. L. and Fadda, D. (2010) The Herschel Virgo Cluster Survey. IV. Resolved dust analysis of spiral galaxies. Astronomy and Astrophysics, 518 . Art. No. L51. ISSN 0004-6361.

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We present a resolved dust analysis of three of the largest angular size spiral galaxies, NGC 4501 and NGC 4567/8, in the Herschel Virgo Cluster Survey (HeViCS) science demonstration field. Herschel has unprecedented spatial resolution at far-infrared wavelengths and with the PACS and SPIRE instruments samples both sides of the peak in the far infrared spectral energy distribution (SED).We present maps of dust temperature, dust mass, and gas-to-dust ratio, produced by fitting modified black bodies to the SED for each pixel. We find that the distribution of dust temperature in both systems is in the range ~19–22 K and peaks away from the centres of the galaxies. The distribution of dust mass in both systems is symmetrical and exhibits a single peak coincident with the galaxy centres. This Letter provides a first insight into the future analysis possible with a large sample of resolved galaxies to be observed by Herschel.

Item Type:Article
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URLURL TypeDescription
Smith, M. W. L.0000-0002-3532-6970
Fadda, D.0000-0002-3698-7076
Additional Information:© 2010 ESO. Received 30 March 2010, Accepted 13 May 2010, Published online 16 July 2010. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. Thanks to Edward Gomez for assistance with APLpy image script. This research has made use of the GOLDMine Database.
Subject Keywords:galaxies: evolution, galaxies: spiral, galaxies: ISM
Record Number:CaltechAUTHORS:20101203-083301700
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Official Citation:The Herschel Virgo Cluster Survey - IV. Resolved dust analysis of spiral galaxies M. W. L. Smith, C. Vlahakis, M. Baes, G. J. Bendo, S. Bianchi, D. J. Bomans, A. Boselli, M. Clemens, E. Corbelli, L. Cortese, A. Dariush, J. I. Davies, I. De Looze, S. di Serego Alighieri, D. Fadda, J. Fritz, D. A. Garcia-Appadoo, G. Gavazzi, C. Giovanardi, M. Grossi, T. M. Hughes, L. K. Hunt, A. P. Jones, S. Madden, D. Pierini, M. Pohlen, S. Sabatini, J. Verstappen, E. M. Xilouris and S. Zibetti A&A 518 L51 (2010) DOI: 10.1051/0004-6361/201014584
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21142
Deposited By: Benjamin Perez
Deposited On:03 Dec 2010 16:54
Last Modified:09 Mar 2020 13:19

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