The Herschel Virgo Cluster Survey V. Star-forming dwarf galaxies - dust in metal-poor environments
| Titre | The Herschel Virgo Cluster Survey V. Star-forming dwarf galaxies - dust in metal-poor environments |
| Type de publication | Journal Article |
| Year of Publication | 2010 |
| Auteurs | Grossi, M, Hunt, LK, Madden, S, Vlahakis, C, Bomans, DJ, Baes, M, Bendo, GJ, Bianchi, S, Boselli, A, Clemens, M, Corbelli, E, Cortese, L, Dariush, A, Davies, JI, De Looze, I, Alighieri, SD, Fadda, D, Fritz, J, Garcia-Appadoo, DA, Gavazzi, G, Giovanardi, C, Hughes, TM, Jones, AP, Pierini, D, Pohlen, M, Sabatini, S, Smith, MWL, Verstappen, J, Xilouris, EM, Zibetti, S |
| Journal | Astronomy & Astrophysics |
| Volume | 518 |
| Date Published | Jul-Aug |
| ISBN Number | 0004-6361 |
| Numéro d'accès | WOS:000281527200053 |
| Résumé | 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) M(circle dot) yr(-1). We measure the spectral energy distribution (SED) from 100 to 500 mu m and derive dust temperatures and dust masses. The SEDs are fitted by a cool component of temperature T <= 20 K, implying dust masses around 10(5) M(circle dot) and dust-to-gas ratios D 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. |
