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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 607162.0, MPI für Astronomie / Publikationen_mpia
A deep view of the Monoceros ring in the anticenter direction: clues of its extra-galactic origin
Authors:Sollima, A.; Valls-Gabaud, D.; Martinez-Delgado, D.; Fliri, J.; Penarrubia, J.; Hoekstra, H.
Date of Publication (YYYY-MM-DD):2011
Journal Abbrev.:The Astrophysical Journal Letters
Volume:730
Issue / Number:1
Audience:Not Specified
Abstract / Description:We present the results of deep imaging obtained at the Canada-France-Hawaii Telescope with MegaCam in the anticenter direction at two different heights above the Galactic disk. We detect the presence of the Monoceros ring in both fields as a conspicuous and narrow main-sequence feature which dominates star counts over a large portion of the color-magnitude diagram down to g' ~ 24. The comparison of the morphology and density of this feature with a large variety of Galactic models excludes the possibility that it can be due to a flare of the Galactic disk, supporting an extra-Galactic origin for this ring-like structure.
Free Keywords:galaxies: interactions; Galaxy: disk; Galaxy: structure; methods: data analysis; techniques: photometric
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2011ApJ...730L...6S
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