Please note that eDoc will be permanently shut down in the first quarter of 2021!      Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Quick Search
My eDoc
Session History
Support Wiki
Direct access to
document ID:

          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 693580.0, MPI für Astronomie / Publikationen_mpia
Perseus I: A distant satellite dwarf galaxy of Andromeda
Authors:Martin, Nicolas F.; Schlafly, Edward F.; Slater, Colin T.; Bernard, Edouard J.; Rix, Hans-Walter; Bell, Eric F.; Ferguson, Annette M. N.; Finkbeiner, Douglas P.; Laevens, Benjamin P. M.; Burgett, William S.; Chambers, Kenneth C.; Draper, Peter W.; Hodapp, Klaus W.; Kaiser, Nicholas; Kudritzki, Rolf-Peter; Magnier, Eugene A.; Metcalfe, Nigel; Morgan, Jeffrey S.; Price, Paul A.; Tonry, John L.; Wainscoat, Richard J.; Waters, Christopher
Date of Publication (YYYY-MM-DD):2013
Title of Journal:The Astrophysical Journal Letters
Issue / Number:1
Start Page:id. L10 (5 pp)
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:We present the discovery of a new dwarf galaxy, Perseus I/Andromeda XXXIII, found in the vicinity of Andromeda (M31) in stacked imaging data from the Pan-STARRS1 3π survey. Located 27.°9 away from M31, Perseus I has a heliocentric distance of 785 ± 65 kpc, compatible with it being a satellite of M31 at 374^{+14}_{-10}\\\\,kpc from its host. The properties of Perseus I are typical for a reasonably bright dwarf galaxy (MV = –10.3 ± 0.7), with an exponential half-light radius of rh = 1.7 ± 0.4 arcmin or r_h = 400^{+105}_{-85}\\\\,pc at this distance, and a moderate ellipticity (\\\\epsilon = 0.43^{+0.15}_{-0.17}). The late discovery of Perseus I is due to its fairly low surface brightness (\\\\mu _0=25.7^{+1.0}_{-0.9} mag arcsec–2), and to the previous lack of deep, high quality photometric data in this region. If confirmed to be a companion of M31, the location of Perseus I, far east from its host, could place interesting constraints on the bulk motion of the satellite system of M31.
Free Keywords:galaxies: individual: Perseus I Andromeda XXXIII; Local Group
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0004-637X [ID No:1]
URL: [ID No:2]
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.