2017MNRAS.472.1060D


Query : 2017MNRAS.472.1060D

2017MNRAS.472.1060D - Mon. Not. R. Astron. Soc., 472, 1060-1073 (2017/November-3)

The predicted luminous satellite populations around SMC- and LMC-mass galaxies - a missing satellite problem around the LMC?

DOOLEY G.A., PETER A.H.G., CARLIN J.L., FREBEL A., BECHTOL K. and WILLMAN B.

Abstract (from CDS):

Recent discovery of many dwarf satellite galaxies in the direction of the Small and Large Magellanic Clouds (SMC and LMC) provokes questions of their origins, and what they can reveal about galaxy evolution theory. Here, we predict the satellite stellar mass function of Magellanic Cloud-mass host galaxies using abundance matching and reionization models applied to the Caterpillar simulations. Specifically focusing on the volume within 50 kpc of the LMC, we predict a mean of four to eight satellites with stellar mass M* > 104 M, and three to four satellites with 80 < M* <= 3000 M. Surprisingly, all 12 currently known satellite candidates have stellar masses of 80 < M* <= 3000 M. Reconciling the dearth of large satellites and profusion of small satellites is challenging and may require a combination of a major modification of the M*-Mhalo relationship (steep, but with an abrupt flattening at 103 M), late reionization for the Local Group (zreion <= 9 preferred) and/or strong tidal stripping. We can more robustly predict that ∼53 per cent of satellites within this volume were accreted together with the LMC and SMC and ∼47 per cent were only ever Milky Way satellites. Observing satellites of isolated LMC-sized field galaxies is essential to place the LMC in context, and to better constrain the M*-Mhalo relationship. Modelling known LMC-sized galaxies within 8 Mpc, we predict 1-6 (2-12) satellites with M* > 105 M (M* > 104 M) within the virial volume of each, and 1-3 (1-7) within a single 1.5 diameter field of view, making their discovery likely.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: numerical - galaxies: dwarf - galaxies: haloes - Magellanic Clouds

Simbad objects: 64

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Number of rows : 64
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME Tuc IV G 00 02.9 -60 51           ~ 48 0
2 NGC 24 GiG 00 09 56.542 -24 57 47.27 12.12 12.20 11.58 11.46 11.5 ~ 225 1
3 NGC 45 LSB 00 14 04.0072128696 -23 10 55.132646808 11.92 11.21 10.73 10.58 10.4 ~ 243 1
4 NGC 55 GiG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 741 2
5 NAME Magellanic Stream HVC 00 32 -30.0           ~ 894 1
6 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11890 1
7 NGC 247 LSB 00 47 08.554 -20 45 37.44 10.11 9.61 9.10 8.87   ~ 407 2
8 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3151 2
9 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10317 1
10 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1412 2
11 NGC 404 LIN 01 09 27.1 +35 43 05   12.56 11.73     ~ 440 0
12 NAME Cetus II G 01 17.9 -17 25           ~ 33 0
13 NAME Segue 2 G 02 19 16.0 +20 10 31     15.2     ~ 220 0
14 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1595 2
15 NAME Eri III G 02 22 45.480 -52 17 04.92           ~ 51 0
16 DES J0225+0304 G? 02 25 42.40 +03 04 10.1           ~ 14 0
17 NAME Hor I G 02 55 31.7 -54 07 08           ~ 108 0
18 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6373 1
19 NAME Horologium II G 03 16 32.1 -50 01 05           ~ 45 0
20 NGC 1313 G 03 18 16.046 -66 29 53.74   10.06 10.0 9.40 10.4 ~ 652 2
21 NAME Reticulum II G 03 35 42.1 -54 02 57           ~ 244 0
22 NAME Reticulum III G 03 45.4 -60 27           ~ 39 0
23 NGC 1800 G 05 06 25.737 -31 57 15.21 13.51 13.19 12.70 12.48 12.9 ~ 169 1
24 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16158 1
25 NAME Pic II G 06 44 43 -59 53.8           ~ 19 0
26 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1701 1
27 [CSP2016] MADCASH J074238+652501-dw G 07 42 38.887 +65 25 01.89           ~ 10 0
28 UGC 4305 IG 08 19 04.9864630512 +70 43 13.086910452 12.06 11.72 11.39 11.11   ~ 729 2
29 NAME Antlia B G 09 48 56.08 -25 59 24.0           ~ 20 0
30 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4201 3
31 NGC 3109 G 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 732 2
32 NGC 3239 IG 10 25 04.867 +17 09 49.21   13.5       ~ 169 0
33 NAME Leo V G 11 31 09.60 +02 13 12.0     16.0     ~ 180 0
34 NGC 4136 GiG 12 09 17.7035859024 +29 55 39.419783832   11.69       ~ 217 1
35 NGC 4144 GiG 12 09 58.601 +46 27 25.85   12.17   11.50   ~ 220 0
36 NGC 4204 GiC 12 15 14.359 +20 39 32.68   14.3       ~ 134 0
37 NGC 4236 GiG 12 16 42.118 +69 27 45.25 10.97 10.58 10.08 9.90   ~ 379 1
38 NGC 4244 GiG 12 17 29.659 +37 48 25.60   10.71   9.99   ~ 534 1
39 NGC 4242 GiG 12 17 30.1835103480 +45 37 09.508940220   11.37 10.83     ~ 247 1
40 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1079 1
41 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6289 0
42 NGC 4449 EmG 12 28 11.118 +44 05 36.81 10.11 9.98 9.64 9.45   ~ 1076 1
43 NAME NGC 4449 J1228.8+4357.8 G 12 28 45.0 +43 57 44     14.88   14.40 ~ 10 1
44 NGC 4605 GiG 12 39 59.2837284936 +61 36 32.822365392   10.94   10.35   ~ 306 2
45 NGC 4656 GiP 12 43 57.6889089768 +32 10 13.345914504   10.96 10.52     ~ 342 3
46 NGC 5023 EmG 13 12 11.8036148808 +44 02 17.328663600   13.2       ~ 236 0
47 NGC 5068 G 13 18 54.807 -21 02 20.76 11.24 10.53 10.01 9.78 10.1 ~ 250 0
48 NGC 5102 EmG 13 21 57.6100832352 -36 37 48.395156160   9.74 9.65 8.47 10.2 ~ 348 1
49 NAME Centaurus A Sy2 13 25 27.6039817176 -43 01 09.493008456   8.18 6.84 6.66   ~ 4264 3
50 NGC 5253 AGN 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33   ~ 1316 4
51 NAME TR 1346-35 GiG 13 49 17.5109711256 -36 03 48.860478360   11.00   10.11   ~ 102 1
52 NGC 5585 GiG 14 19 48.204 +56 43 44.58   11.73 11.216 11.12 10.123 ~ 402 0
53 NAME Hercules Dwarf Galaxy G 16 31 02.0 +12 47 30     14.0     ~ 304 1
54 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13094 0
55 IC 5052 G 20 52 01.633 -69 11 35.93 12.83 12.20 11.66 11.40   ~ 145 0
56 NAME Gru II G 22 04.1 -46 26           ~ 58 0
57 NAME Tuc II G 22 51 55.1 -58 34 08           ~ 107 0
58 IC 5332 GiG 23 34 27.488 -36 06 03.89 11.59 11.27 10.72 10.50 11.2 ~ 140 0
59 NGC 7713 EmG 23 36 15.154 -37 56 22.18   11.63   11.09 11.6 ~ 128 0
60 NAME Tuc V G 23 37.4 -63 16           ~ 43 0
61 NAME Tuc III G 23 56.6 -59 36           ~ 137 0
62 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1028 2
63 NAME Local Group GrG ~ ~           ~ 7723 0
64 NAME Aquarius Region reg ~ ~           ~ 36 0

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2022.08.13-08:00:56

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