Herschel-SPIRE observations of the disturbed galaxy NGC 4438 Academic Article uri icon

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abstract

  • We present Herschel-SPIRE observations of the perturbed galaxy NGC4438 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.

authors

  • Cortese, L
  • Bendo, GJ
  • Boselli, A
  • Davies, JI
  • Gomez, HL
  • Pohlen, M
  • Auld, R
  • Baes, M
  • Bock, JJ
  • Bradford, M
  • Buat, V
  • Castro-Rodriguez, N
  • Chanial, P
  • Charlot, S
  • Ciesla, L
  • Clements, DL
  • Cooray, A
  • Cormier, D
  • Dwek, E
  • Eales, SA
  • Elbaz, D
  • Galametz, M
  • Galliano, F
  • Gear, WK
  • Glenn, J
  • Griffin, M
  • Hony, S
  • Isaak, KG
  • Levenson, LR
  • Lu, N
  • Madden, S
  • O'Halloran, B
  • Okumura, K
  • Oliver, S
  • Page, MJ
  • Panuzzo, P
  • Papageorgiou, A
  • Parkin, TJ
  • Perez-Fournon, I
  • Rangwala, N
  • Rigby, EE
  • Roussel, H
  • Rykala, A
  • Sacchi, N
  • Sauvage, M
  • Schulz, B
  • Schirm, MRP
  • Smith, MWL
  • Spinoglio, L
  • Stevens, JA
  • Srinivasan, S
  • Symeonidis, M
  • Trichas, M
  • Vaccari, M
  • Vigroux, L
  • Wilson, Christine D
  • Wozniak, H
  • Wright, GS
  • Zeilinger, WW

publication date

  • July 2010