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The dust morphology of the elliptical Galaxy M 86 with SPIRE

journal contribution
posted on 2023-06-07, 23:00 authored by H L Gomez, M Baes, L Cortese, M W L Smith, A Boselli, L Ciesla, G J Bendo, M Pohlen, S di Serego Alighieri, Seb OliverSeb Oliver, et al
We present Herschel-SPIRE observations at 250-500 mu m 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 similar to 10(6) M-circle dot 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 similar to 20-80. We discuss the different heating mechanisms for the dust features.


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Astronomy and Astrophysics





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  • Physics and Astronomy Publications


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