期刊
ASTRONOMY & ASTROPHYSICS
卷 518, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201014530
关键词
galaxies: ellipticals and lenticular, cD; galaxies: individual: M 86; submillimeter: ISM; dust, extinction
资金
- CSA (Canada)
- NAOC (China)
- CEA, CNES, CNRS (France)
- ASI (Italy)
- MCINN (Spain)
- Stockholm Observatory (Sweden)
- STFC (UK)
- NASA (USA)
- Science and Technology Facilities Council [PP/E001173/1, PP/E001181/1, ST/F002858/1, ST/G002827/1, ST/G002630/1] Funding Source: researchfish
- UK Space Agency [ST/G003874/1] Funding Source: researchfish
- STFC [ST/G002827/1, PP/E001173/1, ST/G002630/1, ST/F002858/1, ST/H001530/1] Funding Source: UKRI
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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