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The Herschel Virgo Cluster Survey* V. Star-forming dwarf galaxies – dust in metal-poor environments [Letter]

Grossi, M., Hunt, L. K., Madden, S., Vlahakis, C., Bomans, D. J., Baes, M., Bendo, G. J., Bianchi, S., 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., Hughes, Thomas Marcus, Jones, A. P., Pierini, D., Pohlen, Michael, Sabatini, S., Smith, Matthew William L., Verstappen, J., Xilouris, E. M. and Zibetti, S. 2010. The Herschel Virgo Cluster Survey* V. Star-forming dwarf galaxies – dust in metal-poor environments [Letter]. Astronomy & Astrophysics 518 , L52. 10.1051/0004-6361/201014653

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Abstract

We present the dust properties of a small sample of Virgo cluster dwarf galaxies drawn from the science demonstration phase data set of the Herschel Virgo Cluster Survey. These galaxies have low metallicities (7.8 < 12 + log(O/H) < 8.3) and star-formation rates ≲10-1 yr-1. We measure the spectral energy distribution (SED) from 100 to 500 μm and derive dust temperatures and dust masses. The SEDs are fitted by a cool component of temperature T ≲ 20 K, implying dust masses around 105 and dust-to-gas ratios within the range 10-3–10-2. The completion of the full survey will yield a larger set of galaxies, which will provide more stringent constraints on the dust content of star-forming dwarf galaxies.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: galaxies: dwarf / galaxies: ISM / dust, extinction / infrared: 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/32724

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