SIMBAD references

2010A&A...518L..54D - Astronomy and Astrophysics, volume 518, L54-54 (2010/7-2)

The Herschel Virgo Cluster Survey. VII. Dust in cluster dwarf elliptical galaxies.

DE LOOZE I., BAES M., ZIBETTI S., FRITZ J., CORTESE L., DAVIES J.I., VERSTAPPEN J., BENDO G.J., BIANCHI S., CLEMENS M., BOMANS D.J., BOSELLI A., CORBELLI E., DARIUSH A., DI SEREGO ALIGHIERI S., FADDA D., 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., SMITH M.W.L., VLAHAKIS C. and XILOURIS E.M.

Abstract (from CDS):

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 10σ level in the SPIRE 250µm image. Both detected galaxies have dust masses of the order of 10⁵M_☉ and average dust temperatures ≃20K. 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.

Abstract Copyright: ∼

Journal keyword(s): galaxies: dwarf - galaxies: individual: VCC781 - galaxies: individual: VCC951 - galaxies: ISM - dust, extinction

Simbad objects: 19

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