Dust in Cluster Dwarf Elliptical Galaxies
- Creators
- De Looze, I.
- Baes, M.
- Fritz, J.
- Verstappen, J.
- Bendo, G. J.
- Bianchi, S.
- Bomans, D. J.
- Boselli, A.
- Clemens, M.
- Corbelli, E.
- Cortese, L.
- Dariush, A.
- Davies, J. I.
- 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.
- Magrini, L.
- Pierini, D.
- Pohlen, M.
- Sabatini, S.
- Smith, M. W. L.
- Vlahakis, C.
- Xilouris, E. M.
- Zibetti, S.
Abstract
Based on single cross-scan data of the Herschel Virgo Cluster Survey, we report the first detections of dust in cluster early-type dwarf galaxies: VCC 209, VCC 781 and VCC 951. All three galaxies have dust masses M_d ≈ 10⁵ − 10⁶ M⊙ and average dust temperatures ≈ 16–20 K. Since these three early-type dwarfs reside in densely crowded regions close to the center of the Virgo cluster, and several HI-detected dwarfs in the outskirts of Virgo were not detected by Herschel(implying a dust content < 10⁴ M⊙), this might imply that dust in dwarfs is more closely related to the molecular gas, which is more centrally peaked in a galaxy's potential well and therefore, not easily removed by any stripping mechanism. We conclude that the removal of interstellar dust from these early-type dwarfs appears to be less efficient than the removal of the HI gas.
Additional Information
© 2012 Springer-Verlag Berlin Heidelberg. First Online: 25 October 2011.Additional details
- Eprint ID
- 103361
- Resolver ID
- CaltechAUTHORS:20200520-133234809
- Created
-
2020-05-20Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
- Series Name
- Astrophysics and Space Science Proceedings