The Herschel Virgo Cluster Survey IV. Resolved dust analysis of spiral galaxies
- Smith, M. W. L.
- Vlahakis, C.
- Baes, M.
- Bendo, G. J.
- Bianchi, S.
- Bomans, D. J.
- Boselli, A.
- Clemens, M.
- Corbelli, E.
- Cortese, L.
- Dariush, A.
- Davies, J. I.
- de Looze, I.
- Alighieri, S. Di Serego
- Fadda, D.
- Fritz, J.
- Garcia-Appadoo, D. A.
- Gavazzi, G.
- Giovanardi, C.
- Grossi, M.
- Hughes, T. M.
- Hunt, L. K.
- Jones, A. P.
- Madden, S.
- Pierini, D.
- Pohlen, M.
- Sabatini, S.
- Verstappen, J.
- Xilouris, E. M.
- Zibetti, S.
DOIAbstract
International audienceWe 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 similar to 19-22 K and peaks away from the centres of the galaxies. The distribution of dust mass in both systems i...
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