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, Matthew ORCID: https://orcid.org/0000-0002-3532-6970, Vlahakis, C., Xilouris, E. M. and Zibetti, S. 2012. Dust in Cluster Dwarf Elliptical Galaxies. Presented at: Joint European and National Astronomy Meeting 2010, Lisbon, Portugal, 6-10 September 2010. Published in: Papaderos, P, Recchi, S and Hensler, G eds. Dwarf Galaxies: Keys to Galaxy Formation and Evolution. Dwarf Galaxies: Keys to Galaxy Formation and Evolution. Astrophysics and Space Science Proceedings Berlin: Springer, pp. 163-167. 10.1007/978-3-642-22018-0_18 |
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 Md ≈ 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.
Item Type: | Conference or Workshop Item (Paper) |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QB Astronomy |
Publisher: | Springer |
ISBN: | 9783642220173 |
ISSN: | 1570-6591 |
Last Modified: | 03 Nov 2022 10:14 |
URI: | https://orca.cardiff.ac.uk/id/eprint/107383 |
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