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arXiv · 1005.2331

Herschel-SPIRE observations of the disturbed galaxy NGC4438

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
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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.

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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. 2010-05-13. Herschel-SPIRE observations of the disturbed galaxy NGC4438. https://doi.org/10.1051/0004-6361/201014547

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