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The Herschel Virgo Cluster survey, VII : dust in cluster dwarf elliptical galaxies

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Abstract
We use the science demonstration phase data of the Herschel Virgo Cluster Survey to search for dust emission of early-type dwarf galaxies in the central regions of the Virgo cluster as an alternative way of identifying the interstellar medium. We present the first possible far-infrared detection of cluster early-type dwarf galaxies: VCC781 and VCC951 are detected at the 10(sigma) level in the SPIRE 250 mu m image. Both detected galaxies have dust masses of the order of 10(5) M-circle dot and average dust temperatures approximate to 20 K. The detection rate (less than 1%) is quite high compared to the 1.7% detection rate for Hi emission, considering that dwarfs in the central regions are more Hi deficient. We conclude that the removal of interstellar dust from dwarf galaxies resulting from ram pressure stripping, harassment, or tidal effects must be as efficient as the removal of interstellar gas.
Keywords
COLD DUST, NGC 205, RADIATIVE-TRANSFER, DIGITAL SKY SURVEY, extinction, dust, galaxies: dwarf, galaxies: individual: VCC781, galaxies: ISM, galaxies: individual: VCC951, EVOLUTION, CATALOG, SIMULATIONS, SPITZER, ORIGIN, MODEL

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Chicago
De Looze, Ilse, Maarten Baes, S Zibetti, Jacopo Fritz, L Cortese, JI Davies, Joris Verstappen, et al. 2010. “The Herschel Virgo Cluster Survey, VII : Dust in Cluster Dwarf Elliptical Galaxies.” Astronomy & Astrophysics 518.
APA
De Looze, Ilse, Baes, M., Zibetti, S., Fritz, J., Cortese, L., Davies, J., Verstappen, J., et al. (2010). The Herschel Virgo Cluster survey, VII : dust in cluster dwarf elliptical galaxies. ASTRONOMY & ASTROPHYSICS, 518.
Vancouver
1.
De Looze I, Baes M, Zibetti S, Fritz J, Cortese L, Davies J, et al. The Herschel Virgo Cluster survey, VII : dust in cluster dwarf elliptical galaxies. ASTRONOMY & ASTROPHYSICS. 2010;518.
MLA
De Looze, Ilse, Maarten Baes, S Zibetti, et al. “The Herschel Virgo Cluster Survey, VII : Dust in Cluster Dwarf Elliptical Galaxies.” ASTRONOMY & ASTROPHYSICS 518 (2010): n. pag. Print.
@article{1236778,
  abstract     = {We use the science demonstration phase data of the Herschel Virgo Cluster Survey to search for dust emission of early-type dwarf galaxies in the central regions of the Virgo cluster as an alternative way of identifying the interstellar medium. We present the first possible far-infrared detection of cluster early-type dwarf galaxies: VCC781 and VCC951 are detected at the 10(sigma) level in the SPIRE 250 mu m image. Both detected galaxies have dust masses of the order of 10(5) M-circle dot and average dust temperatures approximate to 20 K. The detection rate (less than 1\%) is quite high compared to the 1.7\% detection rate for Hi emission, considering that dwarfs in the central regions are more Hi deficient. We conclude that the removal of interstellar dust from dwarf galaxies resulting from ram pressure stripping, harassment, or tidal effects must be as efficient as the removal of interstellar gas.},
  articleno    = {L54},
  author       = {De Looze, Ilse and Baes, Maarten and Zibetti, S and Fritz, Jacopo and Cortese, L and Davies, JI and Verstappen, Joris and Bendo, GJ and Bianchi, S and Clemens, M and Bomans, DJ and Boselli, A and Corbelli, E and Dariush, A and Alighieri, SD and Fadda, D and Garcia-Appadoo, DA and Gavazzi, G and Giovanardi, C and Grossi, M and Hughes, TM and Hunt, LK and Jones, AP and Madden, S and Pierini, D and Pohlen, M and Sabatini, S and Smith, MWL and Vlahakis, C and Xilouris, EM},
  issn         = {0004-6361},
  journal      = {ASTRONOMY \& ASTROPHYSICS},
  keyword      = {COLD DUST,NGC 205,RADIATIVE-TRANSFER,DIGITAL SKY SURVEY,extinction,dust,galaxies: dwarf,galaxies: individual: VCC781,galaxies: ISM,galaxies: individual: VCC951,EVOLUTION,CATALOG,SIMULATIONS,SPITZER,ORIGIN,MODEL},
  language     = {eng},
  pages        = {5},
  title        = {The Herschel Virgo Cluster survey, VII : dust in cluster dwarf elliptical galaxies},
  url          = {http://dx.doi.org/10.1051/0004-6361/201014647},
  volume       = {518},
  year         = {2010},
}

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