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
- J. A. Stevens
- M. Symeonidis
- M. Trichas
- M. Vaccari
- L. Vigroux
- C. D. Wilson
- H. Wozniak
- G. S. Wright
- W. W. Zeilinger
DOIAbstract
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 $M_\odot$ 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
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