2008A&A...477..139L


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.27CET11:11:46

2008A&A...477..139L - Astronomy and Astrophysics, volume 477, 139-145 (2008/1-1)

Candidate Milky Way satellites in the Galactic halo.

LIU C., HU J., NEWBERG H. and ZHAO Y.

Abstract (from CDS):

Sloan Digital Sky Survey (SDSS) DR5 photometric data with 120°<α<270°, 25°<δ<70° were searched for new Milky Way companions or substructures in the Galactic halo. Five candidates are identified as overdense faint stellar sources that have color-magnitude diagrams similar to those of known globular clusters, or dwarf spheroidal galaxies. The distance to each candidate is estimated by fitting suitable stellar isochrones to the color-magnitude diagrams. Geometric properties and absolute magnitudes are roughly measured and used to determine whether the candidates are likely dwarf spheroidal galaxies, stellar clusters, or tidal debris. SDSSJ1000+5730 and SDSSJ1329+2841 are probably faint dwarf galaxy candidates while SDSSJ0814+5105, SDSSJ0821+5608, and SDSSJ1058+2843 are very likely extremely faint globular clusters. Follow-up study is needed to confirm these candidates.

Abstract Copyright:

Journal keyword(s): Galaxy: structure - Galaxy: halo - galaxies: dwarf - Local Group

Nomenclature: Table 2: [LHN2008] SDSSJHHMM+DDMM N=5.

CDS comments: The five overdensity studied are not SDSS sources in the SDSS DR5.

Simbad objects: 23

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Number of rows : 23

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME SDSS J0814+5105 Gl? 08 14.0 +51 05           ~ 2 0
2 NAME SDSS J0821+5608 Gl? 08 21.0 +56 08           ~ 2 0
3 NAME UMa II Galaxy G 08 51 30.0 +63 07 48     13.3     ~ 320 0
4 NAME Leo Dwarf Irregular Galaxy G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 553 0
5 NAME SDSS J1000+5730 Dwarf G G 10 00.0 +57 30           ~ 4 0
6 NAME Segue 1 G 10 07 03.2 +16 04 25     15.3     ~ 370 1
7 NAME UMa I Galaxy G 10 34 52.80 +51 55 12.0     14.4     ~ 274 1
8 NAME SDSS J1058+2843 Gl? 10 58.0 +28 43           ~ 6 0
9 GCl 17 GlC 11 29 16.80 +28 58 25.0   14.4       ~ 321 1
10 NAME Leo IV Dwarf Galaxy G 11 32 57.0 -00 32 00     15.1     ~ 328 1
11 NAME CVn II dSph G 12 57 09.6 +34 19 12     16.1     ~ 219 2
12 NAME CVn I dSph G 13 28 03.5 +33 33 21     13.1     ~ 267 1
13 NAME SDSS J1329+2841 Dwarf G G 13 29 13.0 +28 41 27           ~ 4 0
14 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2290 0
15 C 1353-269 GlC 13 56 21.702 -27 10 03.00           ~ 105 0
16 NGC 5466 GlC 14 05 27.29 +28 32 04.0   10.5 9.70     ~ 736 0
17 NAME Serpens Dwarf GlC 15 16 05.30 -00 06 41.0   15.1       ~ 638 1
18 NAME Hercules Dwarf Galaxy G 16 31 02.0 +12 47 30     14.0     ~ 284 1
19 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2027 0
20 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 1925 0
21 NAME Local Group GrG ~ ~           ~ 7145 0
22 NAME Orphan Stream St* ~ ~           ~ 201 0
23 NAME Monoceros Stream St* ~ ~           ~ 323 0

    Equat.    Gal    SGal    Ecl

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2021.01.27-11:11:46

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