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The Herschel Virgo Cluster Survey* IV. Resolved dust analysis of spiral galaxies [Letter]

Smith, Matthew W, Vlahakis, C., Baes, Maarten, Bendo, G. J., Bianchi, S., Bomans, D. J., Boselli, A., Clemens, M., Corbelli, E., Cortese, Luca, Dariush, Aliakbar, Davies, Jonathan Ivor, De Looze, I., di Serego Alighieri, S., Fadda, D., Fritz, J., Garcia-Appadoo, D. A., Gavazzi, G., Giovanardi, C., Grossi, M., Hughes, Thomas Marcus, Hunt, L. K., Jones, A. P., Madden, S., Pierini, D., Pohlen, Michael, Sabatini, Sabina, Verstappen, J., Xilouris, E. M. and Zibetti, S. 2010. The Herschel Virgo Cluster Survey* IV. Resolved dust analysis of spiral galaxies [Letter]. Astronomy & Astrophysics 518 , L51. 10.1051/0004-6361/201014584

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Abstract

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
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: galaxies: evolution ; galaxies: spiral ; galaxies: ISM
Additional Information: Letter to the Editor. Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/0004-6361/ (accessed 16/04/2014)
Publisher: EDP Sciences
ISSN: 0004-6361
Date of First Compliant Deposit: 30 March 2016
Last Modified: 09 Apr 2019 20:47
URI: http://orca.cf.ac.uk/id/eprint/32722

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