NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-07-21 T16:13:15 PDT
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For refcode 2010A&A...518L..66R:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2010A&A...518L..66R SPIRE imaging of M 82: Cool dust in the wind and tidal streams Roussel, H.; Wilson, C. D.; Vigroux, L.; Isaak, K. G.; Sauvage, M.; Madden, S. C.; Auld, R.; Baes, M.; Barlow, M. J.; Bendo, G. J.; Bock, J. J.; Boselli, A.; Bradford, M.; Buat, V.; Castro-Rodriguez, N.; Chanial, P.; Charlot, S.; Ciesla, L.; Clements, D. L.; Cooray, A.; Cormier, D.; Cortese, L.; Davies, J. I.; Dwek, E.; Eales, S. A.; Elbaz, D.; Galametz, M.; Galliano, F.; Gear, W. K.; Glenn, J.; Gomez, H. L.; Griffin, M.; Hony, S.; Levenson, L. R.; Lu, N.; O'Halloran, B.; Okumura, K.; Oliver, S.; Page, M. J.; Panuzzo, P.; Papageorgiou, A.; Parkin, T. J.; Perez-Fournon, I.; Pohlen, M.; Rangwala, N.; Rigby, E. E.; Rykala, A.; Sacchi, N.; Schulz, B.; Schirm, M. R. P.; Smith, M. W. L.; Spinoglio, L.; Stevens, J. A.; Srinivasan, S.; Symeonidis, M.; Trichas, M.; Vaccari, M.; Wozniak, H.; Wright, G. S.; Zeilinger, W. W. Abstract. M 82 is a unique representative of a whole class of galaxies, starbursts with superwinds, in the Very Nearby Galaxy Survey with Herschel. In addition, its interaction with the M 81 group has stripped a significant portion of its interstellar medium from its disk. SPIRE maps now afford better characterization of the far-infrared emission from cool dust outside the disk, and sketch a far more complete picture of its mass distribution and energetics than previously possible. They show emission coincident in projection with the starburst wind and in a large halo, much more extended than the PAH band emission seen with Spitzer. Some complex substructures coincide with the brightest PAH filaments, and others with tidal streams seen in atomic hydrogen. We subtract the far-infrared emission of the starburst and underlying disk from the maps, and derive spatially-resolved far-infrared colors for the wind and halo. We interpret the results in terms of dust mass, dust temperature, and global physical conditions. In particular, we examine variations in the dust physical properties as a function of distance from the center and the wind polar axis, and conclude that more than two thirds of the extraplanar dust has been removed by tidal interaction, and not entrained by the starburst wind. Key words: dust, extinction, evolution, galaxies: interactions, galaxies: starburst, infrared: ISM
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