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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 559061.0, MPI für Astronomie / Publikationen_mpia
The Herschel Virgo Cluster Survey . VI. The far-infrared view of M 87
Authors:Baes, M.; Clemens, M.; Xilouris, E. M.; Fritz, J.; Cotton, W. D.; Davies, J. I.; Bendo, G. J.; Bianchi, S.; Cortese, L.; de Looze, I.; Pohlen, M.; Verstappen, J.; Böhringer, H.; 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.; Sabatini, S.; Smith, M. W. L.; Vlahakis, C.; Zibetti, S.
Language:English
Date of Publication (YYYY-MM-DD):2010
Title of Journal:Astronomy and Astrophysics
Journal Abbrev.:A&A
Volume:518
Start Page:id.L53
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The origin of the far-infrared emission from the nearby radio galaxy M 87 remains a matter of debate. Some studies find evidence of a far-infrared excess due to thermal dust emission, whereas others propose that the far-infrared emission can be explained by synchrotron emission without the need for an additional dust emission component. We present Herschel PACS and SPIRE observations of M 87, taken as part of the science demonstration phase observations of the Herschel Virgo Cluster Survey. We compare these data with a synchrotron model based on mid-infrared, far-infrared, submm and radio data from the literature to investigate the origin of the far-infrared emission. Both the integrated SED and the Herschel surface brightness maps are adequately explained by synchrotron emission. At odds with previous claims, we find no evidence of a diffuse dust component in M 87, which is not unexpected in the harsh X-ray environment of this radio galaxy sitting at the core of the Virgo cluster. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.
Free Keywords:galaxies: individual: M 87; radiation mechanisms: thermal; radiation mechanisms: non-thermal; infrared: galaxies
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/abs/2010A%26A...518L..53... [ID No:1]
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