Dust in Cluster Dwarf Elliptical Galaxies
Creators
- De Looze, I.1
- Baes, M.1
- Fritz, J.1
- Verstappen, J.1
- Bendo, G. J.2
- Bianchi, S.3
- Bomans, D. J.4
- Boselli, A.5
- Clemens, M.6
- Corbelli, E.3
- Cortese, L.7
- Dariush, A.8
- Davies, J. I.8
- di Serego Alighieri, S.3
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Fadda, D.9
- Garcia-Appadoo, D. A.7
- Gavazzi, G.10
- Giovanardi, C.3
- Grossi, M.11
- Hughes, T. M.8
- Hunt, L. K.3
- Jones, A. P.12
- Madden, S.13
- Magrini, L.3
- Pierini, D.14
- Pohlen, M.8
- Sabatini, S.15
- Smith, M. W. L.8
- Vlahakis, C.16
- Xilouris, E. M.17
- Zibetti, S.14
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1.
Ghent University
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2.
Imperial College London
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3.
Arcetri Astrophysical Observatory
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4.
Ruhr University Bochum
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5.
Laboratoire d'Astrophysique de Marseille
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6.
Osservatorio Astronomico di Padova
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7.
European Southern Observatory
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8.
Cardiff University
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9.
Infrared Processing and Analysis Center
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10.
University of Milano-Bicocca
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11.
University of Lisbon
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12.
Institut d'Astrophysique Spatiale
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13.
University of Paris
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14.
Max Planck Society
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15.
National Institute for Astrophysics
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16.
University of Chile
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17.
National Observatory of Athens
Contributors
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
Identifiers
- Eprint ID
- 103361
- Resolver ID
- CaltechAUTHORS:20200520-133234809
Dates
- Created
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2020-05-20Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
Caltech Custom Metadata
- Series Name
- Astrophysics and Space Science Proceedings