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Herschel -SPIRE observations of the disturbed galaxy NGC 4438

  • L. Cortese
  • , G. J. Bendo
  • , A. Boselli
  • , J. I. Davies
  • , H. L. Gomez
  • , M. Pohlen
  • , R. Auld
  • , M. Baes
  • , J. J. Bock
  • , M. Bradford
  • , V. Buat
  • , N. Castro-Rodriguez
  • , P. Chanial
  • , S. Charlot
  • , L. Ciesla
  • , D. L. Clements
  • , A. Cooray
  • , D. Cormier
  • , E. Dwek
  • , S. A. 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, B. Schulz, M. R.P. Schirm, M. W.L. Smith, L. Spinoglio, J. A. Stevens, S. Srinivasan, M. Symeonidis, M. Trichas, M. Vaccari, L. Vigroux, C. D. Wilson, H. Wozniak, G. S. Wright, W. W. Zeilinger
  • Cardiff University
  • Imperial College London
  • Laboratoire d'Astrophysique de Marseille
  • Ghent University
  • Jet Propulsion Laboratory
  • GTC Project
  • CEA Saclay
  • UPMC Univ. Paris 06
  • University of California, Irvine
  • NASA Goddard Space Flight Center
  • University of Colorado Boulder
  • European Space Research and Technology Centre (ESTEC)
  • University of Sussex
  • McMaster University
  • University of Nottingham
  • INAF - Istituto Fisica Spazio Interplanetario
  • California Institute of Technology
  • University of Hertfordshire
  • University College London
  • University of Padova
  • Université de Strasbourg
  • Royal Observatory
  • University of Vienna

Research output: Contribution to a Journal (Peer & Non Peer)Articlepeer-review

29 Citations (Scopus)

Abstract

We present Herschel-SPIRE observations of the perturbed galaxy NGC 4438 in the Virgo cluster. These images reveal the presence of extra-planar dust up to ∼4-5 kpc away from the galaxy's disk. The dust closely follows the distribution of the stripped atomic and molecular hydrogen, supporting the idea that gas and dust are perturbed in a similar fashion by the cluster environment. Interestingly, the extra-planar dust lacks a warm temperature component when compared to the material still present in the disk, explaining why it was missed by previous far-infrared investigations. Our study provides evidence for dust stripping in clusters of galaxies and illustrates the potential of Herschel data for our understanding of environmental effects on galaxy evolution.

Original languageEnglish
Article numberL63
JournalAstronomy and Astrophysics
Volume518
Issue number4
DOIs
Publication statusPublished - 2010
Externally publishedYes

Keywords

  • dust, extinction
  • galaxies: evolution
  • galaxies: individual: NGC4438
  • infrared: galaxies

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