2021MNRAS.503..176H

Query : 2021MNRAS.503..176H

2021MNRAS.503..176H - Mon. Not. R. Astron. Soc., 503, 176-199 (2021/May-1)

Solo dwarfs II: the stellar structure of isolated Local Group dwarf galaxies.

HIGGS C.R., McCONNACHIE A.W., ANNAU N., IRWIN M., BATTAGLIA G., COTE P., LEWIS G.F. and VENN K.

Abstract (from CDS):

The Solo (Solitary Local) Dwarf Galaxy survey is a volume-limited, wide-field g- and i-band survey of all known nearby (<3 Mpc) and isolated (>300 kpc from the Milky Way or M31) dwarf galaxies. This set of 44 dwarfs is homogeneously analysed for quantitative comparisons to the satellite dwarf populations of the Milky Way and M31. In this paper, an analysis of the 12 closest Solo dwarf galaxies accessible from the Northern hemisphere is presented, including derivation of their distances, spatial distributions, morphology, and extended structures, including their inner integrated light properties and their outer resolved star distributions. All 12 galaxies are found to be reasonably well described by two-dimensional Sersic functions, although UGC 4879 in particular shows tentative evidence of two distinct components. No prominent extended stellar substructures, which could be signs of either faint satellites or recent mergers, are identified in the outer regions of any of the systems examined.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): galaxies: dwarf - galaxies: general - Local Group - galaxies: photometry - galaxies: stellar content - galaxies: structure

CDS comments: In introduction, Crater III is a misprint for Cetus III.

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 NAME Andromeda XVIII G 00 02 14.5 +45 05 20     16.0     ~ 129 0
3 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
4 NAME Cetus Dwarf Galaxy G 00 26 10.8 -11 03 14     13.2     ~ 257 0
5 NAME Andromeda XVII G 00 37 07.0 +44 19 20     15.8     ~ 101 0
6 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
7 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
8 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
9 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 575 2
10 NAME Cetus III Dwarf Galaxy LSB 02 05 19.40 -04 16 12.0           ~ 32 0
11 NAME Sagittarius Stream St* 02 22 +00.0           ~ 1001 0
12 NAME Andromeda XXXIII G 03 01 23.6 +40 59 18           ~ 43 0
13 NGC 1269 EmG 03 17 18.5785534752 -41 06 28.628735184 9.85 9.83 8.81 8.72   ~ 445 1
14 NAME Eridanus II G 03 44 21.1 -43 32 00           ~ 216 0
15 Z 264-88 AG? 09 16 02.0195908968 +52 50 42.051257412   14.0 13.2     ~ 141 0
16 NAME Leo T G 09 34 53.4 +17 03 05     15.1     ~ 434 0
17 NAME Antlia II Dwarf Galaxy G 09 35 32.8 -36 46 02           ~ 109 0
18 Z 153-10 G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 652 0
19 Z 36-12 H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 569 0
20 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
21 NAME Crater II Dwarf Galaxy G 11 49 14 -18 24.8           ~ 176 0
22 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
23 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
24 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
25 NAME Bootes IV LSB 15 34 45 +43 43.6           ~ 24 0
26 NAME Draco II Gl? 15 52 47.6 +64 33 55           ~ 138 0
27 NAME Sgr dIG G 19 29 59.0 -17 40 41   15.5 13.6     ~ 323 1
28 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
29 NAME Sagittarius II Gl? 19 52 40.5 -22 04 05           ~ 97 0
30 MCG-02-53-003 G 20 46 51.7 -12 50 54 15.75 15.18 14.83 14.46   ~ 470 1
31 NAME Laevens 3 GlC 21 06 54.3 +14 58 48           ~ 43 0
32 NAME Andromeda XXVIII G 22 32 41.20 +31 12 58.2     15.6     ~ 88 0
33 NAME Tuc Galaxy G 22 41 49.6 -64 25 10   15.7 15.2     ~ 324 0
34 Z 431-72 G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 499 1
35 NAME Local Group GrG ~ ~           ~ 9325 0

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