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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 660915.0, MPI für Astronomie / Publikationen_mpia
Cool dust in the outer ring of NGC 1291
Authors:Hinz, J. L.; Engelbracht, C. W.; Skibba, R.; Crocker, A.; Donovan Meyer, J.; Sandstrom, K.; Walter, F.; Montiel, E.; Johnson, B. D.; Hunt, L.; Aniano, G.; Armus, L.; Calzetti, D.; Dale, D. A.; Draine, B.; Galametz, M.; Groves, B.; Kennicutt, R. C.; Meidt, S. E.; Murphy, E. J.; Tabatabaei, F. S.
Date of Publication (YYYY-MM-DD):2012
Journal Abbrev.:The Astrophysical Journal
Volume:756
Issue / Number:1
Start Page:id. 75
Audience:Not Specified
Abstract / Description:We examine Herschel Space Observatory images of one nearby prototypical outer ring galaxy, NGC 1291, and show that the ring becomes more prominent at wavelengths longer than 160 μm. The mass of cool dust in the ring dominates the total dust mass of the galaxy, accounting for at least 70% of it. The temperature of the emitting dust in the ring (T = 19.5 ± 0.3 K) is cooler than that of the inner galaxy (T = 25.7 ± 0.7 K). We discuss several explanations for the difference in dust temperature, including age and density differences in the stellar populations of the ring versus the bulge.
Free Keywords:galaxies: individual: NGC 1291; galaxies: photometry; galaxies: spiral
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2012ApJ...756...75H
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