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The Herschel Virgo Cluster survey, VI : the far-infrared view of M87

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Abstract
The origin of the far-infrared emission from the nearby radio galaxy M87 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 M87, 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 M87, which is not unexpected in the harsh X-ray environment of this radio galaxy sitting at the core of the Virgo cluster.
Keywords
RADIO-SOURCES, BLACK-HOLE, RADIATIVE-TRANSFER, X-RAY, EARLY-TYPE GALAXIES, galaxies: individual: M87, radiation mechanisms: thermal, infrared: galaxies, radiation mechanisms: non-thermal, XMM-NEWTON, 1ST SURVEY, EMISSION, JET, SPECTRUM

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Chicago
Baes, Maarten, M Clemens, EM Xilouris, Jacopo Fritz, WD Cotton, JI Davies, GJ Bendo, et al. 2010. “The Herschel Virgo Cluster Survey, VI : the Far-infrared View of M87.” Astronomy & Astrophysics 518.
APA
Baes, M., Clemens, M., Xilouris, E., Fritz, J., Cotton, W., Davies, J., Bendo, G., et al. (2010). The Herschel Virgo Cluster survey, VI : the far-infrared view of M87. ASTRONOMY & ASTROPHYSICS, 518.
Vancouver
1.
Baes M, Clemens M, Xilouris E, Fritz J, Cotton W, Davies J, et al. The Herschel Virgo Cluster survey, VI : the far-infrared view of M87. ASTRONOMY & ASTROPHYSICS. 2010;518.
MLA
Baes, Maarten, M Clemens, EM Xilouris, et al. “The Herschel Virgo Cluster Survey, VI : the Far-infrared View of M87.” ASTRONOMY & ASTROPHYSICS 518 (2010): n. pag. Print.
@article{1236744,
  abstract     = {The origin of the far-infrared emission from the nearby radio galaxy M87 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 M87, 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 M87, which is not unexpected in the harsh X-ray environment of this radio galaxy sitting at the core of the Virgo cluster.},
  articleno    = {L53},
  author       = {Baes, Maarten and Clemens, M and Xilouris, EM and Fritz, Jacopo and Cotton, WD and Davies, JI and Bendo, GJ and Bianchi, S and Cortese, L and De Looze, Ilse and Pohlen, M and Verstappen, Joris and Bohringer, H and Bomans, DJ and Boselli, A and Corbelli, E and Dariush, A and Alighieri, SD and Fadda, D and Garcia-Appadoo, DA and Gavazzi, G and Giovanardi, C and Grossi, M and Hughes, TM and Hunt, LK and Jones, AP and Madden, S and Pierini, D and Sabatini, S and Smith, MWL and Vlahakis, C and Zibetti, S},
  issn         = {0004-6361},
  journal      = {ASTRONOMY \& ASTROPHYSICS},
  language     = {eng},
  pages        = {5},
  title        = {The Herschel Virgo Cluster survey, VI : the far-infrared view of M87},
  url          = {http://dx.doi.org/10.1051/0004-6361/201014555},
  volume       = {518},
  year         = {2010},
}

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