Herschel-SPIRE observations of the disturbed galaxy NGC 4438
- Cortese, L.
- Bendo, G. J.
- Boselli, A.
- Davies, J. I.
- Gomez, H. L.
- Pohlen, M.
- Auld, R.
- Baes, M.
- Bock, J. J.
- Bradford, M.
- Buat, V.
- Castro-Rodriguez, N.
- Chanial, P.
- Charlot, S.
- Ciesla, L.
- Clements, D. L.
- Cooray, A.
- Cormier, D.
- Dwek, E.
- Eales, S. A.
- Elbaz, D.
- Galametz, M.
- Galliano, F.
- Gear, W. K.
- Glenn, J.
- Griffin, M.
- Hony, S.
- Isaak, K. G.
- Levenson, L. R.
- Lu, N.
- Madden, S.
- O'Halloran, B.
- Okumura, K.
- Oliver, S.
- Page, M. J.
- Panuzzo, P.
- Papageorgiou, A.
- Parkin, T. J.
- Perez-Fournon, I.
- Rangwala, N.
- Rigby, E. E.
- Roussel, H.
- Rykala, A.
- Sacchi, N.
- Sauvage, M.
- Schulz, B.
- Schirm, M. R. P.
- Smith, M. W. L.
- Spinoglio, L.
- Stevens, Jason
- Srinivasan, S.
- Symeonidis, M.
- Trichas, M.
- Vaccari, M.
- Vigroux, L.
- Wilson, C. D.
- Wozniak, H.
- Wright, G. S.
- Zeilinger, W. W.
DOIAbstract
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 g...
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