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The dust morphology of the elliptical Galaxy M 86 with SPIRE

  • H.L. Gomez
  • , M. Baes
  • , L. Cortese
  • , M. W. L. Smith
  • , A. Boselli
  • , L. Ciesla
  • , G. J. Bendo
  • , M. Pohlen
  • , S. di Serego Alighieri
  • , R. Auld
  • , M.J. Barlow
  • , J. J. Bock
  • , M. Bradford
  • , V. Buat
  • , N. Castro-Rodriguez
  • , P. Chanial
  • , S. Charlot
  • , D. L. Clements
  • , A. Cooray
  • , D. Cormier
  • J. I. Davies, E. Dwek, S. Eales, D. Elbaz, M. Galametz, F. Galliano, W.K. Gear, J. Glenn, M. Griffin, S. Hony, K.G. Isaak, L. R. Levenson, N. Lu, S. Madden, B. O'Halloran, K. Okumura, S. Oliver, M.J. Page, P. Panuzzo, A. Papageorgiou, T.J. Parkin, I. Perez-Fournon, N. Rangwala, E. E. Rigby, H. Roussel, A. Rykala, N. Sacchi, M. Sauvage, M. R. P. Schirm, B. Schulz, L. Spinoglio, S. Srinivasan, Jason Stevens, M. Symeonidis, M. Trichas, M. Vaccari, L. Vigroux, C.D. Wilson, H. Wozniak, G.S. Wright, W.W. Zeilinger

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)
64 Downloads (Pure)

Abstract

We present Herschel-SPIRE observations at 250–500 μm of the giant elliptical galaxy M 86 and examine the distribution of the resolved cold dust emission and its relation with other galactic tracers. The SPIRE images reveal three dust components: emission from the central region; a dust lane extending north-south; and a bright emission feature 10 kpc to the south-east. We estimate that ~106  M ? of dust is spatially coincident with atomic and ionized hydrogen, originating from stripped material from the nearby spiral NGC 4438 due to recent tidal interactions with M 86. The gas-to-dust ratio of the cold gas component ranges from ~20–80. We discuss the different heating mechanisms for the dust features.

Original languageEnglish
Article numberL45
JournalAstronomy & Astrophysics
Volume518
DOIs
Publication statusPublished - 1 Jul 2010

Keywords

  • galaxies: ellipticals and lenticular, cD, galaxies: individual: M 86, submillimeter: ISM, dust, extinction

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