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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 710134.0, MPI für Astronomie / Publikationen_mpia
The PAndAS field of streams: Stellar structures in the Milky Way halo toward Andromeda and Triangulum
Authors:Martin, N. F.; Ibata, R. A.; Rich, R. M.; Collins, M. L. M.; Fardal, M. A.; Irwin, M. J.; Lewis, G. F.; McConnachie, A. W.; Babul, A.; Bate, N. F.; Chapman, S. C.; Conn, A. R.; Crnojevic, D.; Ferguson, A. M. N.; Dougal Mackey, A.; Navarro, J. F.; Peñarrubia, J.; Tanvir, N. T.; Valls-Gabaud, D.
Date of Publication (YYYY-MM-DD):2014
Title of Journal:The Astrophysical Journal
Issue / Number:1
Start Page:id. 19 (10 pp)
Audience:Not Specified
Abstract / Description:We reveal the highly structured nature of the Milky Way (MW) stellar halo within the footprint of the Pan-Andromeda Archaeological Survey (PAndAS) photometric survey from blue main sequence (MS) and MS turn-off stars. We map no fewer than five stellar structures within a heliocentric range of ~5-30 kpc. Some of these are known (the Monoceros Ring, the Pisces/Triangulum globular cluster stream), but we also uncover three well-defined stellar structures that could be, at least partly, responsible for the so-called Triangulum/Andromeda and Triangulum/Andromeda 2 features. In particular, we trace a new faint stellar stream located at a heliocentric distance of ~17 kpc. With a surface brightness of Sigma V ~ 32-32.5 mag arcsec-2, it follows an orbit that is almost parallel to the Galactic plane north of M31 and has so far eluded surveys of the
Free Keywords:Galaxy: halo; Galaxy: structure; Local Group
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0004-637X %R 10.1088/0004-637X/787/1/19
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