2006AJ....132.1571V

Query : 2006AJ....132.1571V

2006AJ....132.1571V - Astron. J., 132, 1571-1574 (2006/October-0)

The dwarf satellites of M31 and the Galaxy.

VAN DEN BERGH S.

Abstract (from CDS):

The satellite systems of M31 and the Galaxy are compared. It is noted that all five of the suspected stripped dwarf spheroidal (dSph) cores of M31's companions are located within a projected distance of 40 kpc from the nucleus of this galaxy, whereas the normal dSph companions to this object have distances >40 kpc from the center of M31. All companions within 200 kpc<DM31<600 kpc are late-type objects. In one respect the companions to the Galaxy appear to exhibit different systematics, with the irregular LMC and SMC being located at small galactocentric distance Rgc. It is speculated that this difference might be accounted for by assuming that the Magellanic Clouds are interlopers that were originally formed in the outer reaches of the Local Group. The radial distribution of the total sample of 40 companions of M31 and the Galaxy, which we show in a figure, hints at the possibility that these objects contain distinct populations of core (R<25 kpc) and halo (R>25 kpc) satellites.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Dwarf - Galaxies: Individual: Messier Number: M31 - galaxies: individual (objnS{Galaxy})

Simbad objects: 45

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Number of rows : 45
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 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
2 NAME Mayall II GlC 00 32 46.5323801712 +39 34 40.504803060   14.564 13.807 13.208 12.684 ~ 400 1
3 NGC 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 720 1
4 NAME Andromeda III G 00 35 33.8 +36 29 52     14.4     ~ 309 0
5 NAME M31-EC3 GlC 00 38 04.61 +40 44 39.4     17.60   16.58 ~ 16 0
6 NAME M31-EC1 GlC 00 38 19.49 +41 47 14.9     17.60   16.72 ~ 16 0
7 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
8 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
9 Bol 37 GlC 00 41 34.9868411928 +41 14 55.086295416 19.891 18.749 16.849 15.428 14.190 ~ 65 0
10 NAME Andromeda VIII blu 00 42 06.0 +40 37 00           ~ 27 0
11 NAME Andromeda IV G 00 42 32.3 +40 34 19           ~ 80 0
12 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
13 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
14 NAME Andromeda I G 00 45 39.8 +38 02 28   13.9 12.7     ~ 355 0
15 NAME And NE reg 00 52.0 +44 06           ~ 19 1
16 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
17 NAME Andromeda IX G 00 52 53.0 +43 11 45     16.3     ~ 176 1
18 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
19 NAME Pisces I G 01 03 55.0 +21 53 06   16.18 14.3     ~ 404 0
20 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
21 NAME Andromeda X G 01 06 33.70 +44 48 15.8     16.6     ~ 125 1
22 NAME Andromeda V G 01 10 17.1 +47 37 41     15.3     ~ 215 0
23 NAME Andromeda II G 01 16 29.8 +33 25 09     11.7     ~ 402 0
24 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
25 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 575 2
26 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
27 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
28 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
29 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
30 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
31 NAME Sextans dSph LSB 10 13 02.9 -01 36 53   12 10.4     ~ 921 0
32 NAME UMa I Galaxy G 10 34 52.80 +51 55 12.0     14.4     ~ 355 1
33 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 899 0
34 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
35 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
36 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
37 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
38 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
39 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0
40 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
41 NAME Pisces II G 22 58 31.0 +05 57 09     16.3     ~ 283 0
42 NAME Andromeda VII GiG 23 26 31.0 +50 40 33   13.6 11.8     ~ 222 1
43 Z 431-72 G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 499 1
44 NAME Peg dSph GiG 23 51 46.3 +24 34 57   14.5 13.2     ~ 250 2
45 NAME Local Group GrG ~ ~           ~ 9325 0

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