2021ApJ...907...85M

Query : 2021ApJ...907...85M

2021ApJ...907...85M - Astrophys. J., 907, 85-85 (2021/February-1)

The SAGA Survey. II. Building a statistical sample of satellite systems around Milky Way-like galaxies.

MAO Y.-Y., GEHA M., WECHSLER R.H., WEINER B., TOLLERUD E.J., NADLER E.O. and KALLIVAYALIL N.

Abstract (from CDS):

We present the Stage II results from the ongoing Satellites Around Galactic Analogs (SAGA) Survey. Upon completion, the SAGA Survey will spectroscopically identify satellite galaxies brighter than Mr,o = -12.3 around 100 Milky Way (MW) analogs at z ∼ 0.01. In Stage II, we have more than quadrupled the sample size of Stage I, delivering results from 127 satellites around 36 MW analogs with an improved target selection strategy and deep photometric imaging catalogs from the Dark Energy Survey and the Legacy Surveys. We have obtained 25,372 galaxy redshifts, peaking around z = 0.2. These data significantly increase spectroscopic coverage for very low redshift objects in 17 < ro < 20.75 around SAGA hosts, creating a unique data set that places the Local Group in a wider context. The number of confirmed satellites per system ranges from zero to nine and correlates with host galaxy and brightest satellite luminosities. We find that the number and luminosities of MW satellites are consistent with being drawn from the same underlying distribution as SAGA systems. The majority of confirmed SAGA satellites are star-forming, and the quenched fraction increases as satellite stellar mass and projected radius from the host galaxy decrease. Overall, the satellite quenched fraction among SAGA systems is lower than that in the Local Group. We compare the luminosity functions and radial distributions of SAGA satellites with theoretical predictions based on cold dark matter simulations and an empirical galaxy-halo connection model and find that the results are broadly in agreement.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Redshift surveys - Dwarf galaxies - Luminosity function - Galaxy physics - Galaxy dark matter halos

VizieR on-line data: <Available at CDS (J/ApJ/907/85): table2.dat table3.dat>

Simbad objects: 180

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Number of rows : 180
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 SDSS J012108.46+173608.0 G 01 21 08.4664306752 +17 36 07.886072268           ~ 3 0
4 SDSS J012118.83+174514.1 G 01 21 18.832 +17 45 14.18           ~ 3 0
5 Z 459-41 AG? 01 21 47.793 +17 35 32.58   14.7       ~ 105 1
6 SDSS J012208.72+173141.3 G 01 22 08.722 +17 31 41.31           ~ 3 0
7 SDSS J012306.45+175329.2 G 01 23 06.454 +17 53 29.22           ~ 5 0
8 SDSS J023808.67-012348.1 G 02 38 08.679 -01 23 48.11           ~ 2 0
9 NGC 1015 Sy2 02 38 11.5517163624 -01 19 07.598590248   12.8   12.4 12.5 ~ 125 0
10 SDSS J023942.11-012507.4 G 02 39 42.111 -01 25 07.47           ~ 2 0
11 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
12 LEDA 909350 G 03 20 45.9 -15 34 31           ~ 3 0
13 MCG-03-09-027 AG? 03 21 51.72 -15 42 37.2   15.57   14.9 15.2 ~ 41 0
14 NGC 1309 GiG 03 22 06.5548977432 -15 23 59.791692912   12.08   12.5 11.7 ~ 246 1
15 DES 353742769 G 03 23 47.1 -15 24 01           ~ 2 0
16 LEDA 942204 G 03 41 21.52 -13 08 40.8           ~ 3 0
17 LEDA 941100 G 03 42 16.3 -13 13 01           ~ 4 0
18 APMUKS (BJ) B033959.58-133449.0 G 03 42 20.1 -13 25 18           ~ 5 0
19 MCG-02-10-009 Sy2 03 42 56.065 -12 54 59.10   14.10   13.6 13.0 ~ 80 0
20 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
21 ESO 121-26 AG? 06 21 38.7213440688 -59 44 23.748469764   12.58   11.54 12.2 ~ 82 0
22 DES 467510764 G 06 22 55.8 -59 40 03           ~ 1 0
23 LEDA 370409 AG? 06 23 06.23 -59 34 08.4   16.43   15.70   ~ 6 0
24 NGC 2543 GiP 08 12 57.955 +36 15 16.23   12.70       ~ 182 1
25 FIRST J081258.7+361146 rG 08 12 58.477 +36 11 53.90   16.5       ~ 18 0
26 LEDA 3996295 AG? 08 14 35.972 +36 26 03.59           ~ 8 0
27 Z 264-90 Sy1 09 16 45.5160392472 +53 26 34.300942764   14.7       ~ 50 0
28 DELS 8001595052001770 G 09 16 57.3 +53 00 36           ~ 2 0
29 DELS 8001595921001454 G 09 17 14.4 +53 13 47           ~ 2 0
30 Z 264-91 Sy2 09 17 39.9272205288 +52 59 34.398825756   16.68 15.97     ~ 70 0
31 DELS 8001595052002084 G 09 17 42.1 +53 01 38           ~ 2 0
32 MCG+09-15-115 G 09 17 46.325 +53 17 33.09   16       ~ 11 0
33 Z 264-92 GiG 09 17 59.055 +52 44 28.96   15.3       ~ 15 0
34 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
35 LEDA 1275824 AG? 09 39 22.317 +04 57 09.13           ~ 14 0
36 LEDA 3998262 AG? 09 40 21.134 +04 44 06.33           ~ 10 0
37 LEDA 27603 LSB 09 40 27.0 +00 02 33           ~ 25 0
38 DELS 8000361164001713 G 09 40 29.4 +05 13 53           ~ 4 0
39 NGC 2962 GiP 09 40 53.9321546928 +05 09 57.032828496   13.1       ~ 210 0
40 LEDA 1277283 AG? 09 40 56.429 +05 02 43.23           ~ 15 0
41 LEDA 1175027 AG? 09 41 17.024 +00 46 15.99           ~ 6 0
42 NGC 2967 EmG 09 42 03.2933676504 +00 20 11.109810012   12.1   12.2 11.9 ~ 171 0
43 NGC 2950 AG? 09 42 35.1484995048 +58 51 04.584956904   11.8       ~ 223 0
44 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
45 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
46 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
47 NGC 3175 EmG 10 14 42.1304335632 -28 52 19.628995332   12.14   11.7 11.2 ~ 110 0
48 NGC 3245 LIN 10 27 18.3864983136 +28 30 26.621599932   11.6       ~ 372 0
49 DELS 8000473304003738 G 11 28 04.4 +25 33 14           ~ 1 0
50 NGC 3689 GiC 11 28 11.0180259864 +25 39 40.104503496   12.9       ~ 89 1
51 DELS 8000474605000773 G 11 28 17.9 +25 40 11           ~ 2 0
52 NGC 3976 Sy2 11 55 57.2734729464 +06 44 57.420193308   12.8       ~ 146 0
53 NGC 3976A AG? 11 56 02.466 +06 40 40.61   15.5       ~ 16 0
54 SDSS J115707.20+064031.4 AG? 11 57 07.208 +06 40 31.46           ~ 11 0
55 LEDA 86636 LSB 12 09 42.731 +20 02 48.91   15.05       ~ 17 0
56 SDSS J121045.55+203534.5 G 12 10 45.556 +20 35 34.54           ~ 4 0
57 NGC 4158 SyG 12 11 10.1637235728 +20 10 32.267644824   13.1       ~ 96 0
58 SDSS J121123.56+200347.6 G 12 11 23.570 +20 03 47.60           ~ 4 0
59 Z 98-93 GiC 12 11 57.7593256344 +20 01 40.276606296   15.3       ~ 22 0
60 DELS 8000444093004677 G 12 12 28.2 +20 06 29           ~ 2 0
61 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
62 DELS 8000310953004705 G 12 22 19.9 -03 24 34           ~ 1 0
63 NGC 4348 GiG 12 23 53.9227819416 -03 26 34.033275096   13.60   13.0 12.4 ~ 110 0
64 NGC 4454 GiP 12 28 50.7436825224 -01 56 21.072272316 12.95 12.72 11.87     ~ 89 1
65 Z 14-47 EmG 12 28 50.746 -02 03 38.90   15.1       ~ 22 0
66 2dFGRS TGN250Z166 LSB 12 28 57.895 -01 36 09.40   18.931   18.198   ~ 7 0
67 DELS 8000321038002417 G 12 30 14.2 -01 43 45           ~ 2 0
68 LEDA 3294304 LSB 12 30 21.273 -01 38 09.90   17.642   17.559   ~ 8 0
69 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
70 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
71 DELS 8001561826000228 G 13 44 51.1 +44 08 21           ~ 1 0
72 DELS 8001561826001527 G 13 44 56.1 +44 14 19           ~ 1 0
73 DELS 8001561826000984 G 13 45 02.9 +44 11 55           ~ 1 0
74 NGC 5296 GiP 13 46 18.6480301296 +43 51 04.765848516   15.0       ~ 62 0
75 NGC 5297 GiP 13 46 23.694 +43 52 19.34   12.3       ~ 181 0
76 SDSS J134626.09+432708.9 G 13 46 26.09751 +43 27 08.9115           ~ 1 0
77 SDSS J134757.60+433513.9 G 13 47 57.60945 +43 35 13.4621           ~ 2 0
78 Z 218-49 EmG 13 48 23.356 +43 42 30.53   15.7       ~ 12 0
79 DELS 8001513578003296 G 13 53 03.8 +33 35 28           ~ 1 0
80 NGC 5347 Sy2 13 53 17.7984934128 +33 29 27.011618196   13.46 12.70     ~ 373 1
81 DELS 8001513579000155 G 13 53 55.4 +33 23 06           ~ 1 0
82 LEDA 2343136 AG? 14 00 24.043 +49 26 39.44           ~ 7 0
83 SDSS J140049.96+493059.8 AG? 14 00 49.967 +49 30 59.82           ~ 5 0
84 UGC 8936 LSB 14 00 52.869 +49 22 31.56   17       ~ 13 0
85 NGC 5448 LIN 14 02 50.072 +49 10 21.53   12.7       ~ 177 0
86 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
87 DELS 8001582565000477 LSB 14 03 19.14 +49 24 55.3           ~ 3 0
88 SDSS J140328.78+485753.0 AG? 14 03 28.789 +48 57 53.08           ~ 3 0
89 LEDA 4004557 AG? 14 19 12.735 +50 26 26.51           ~ 5 0
90 Z 273-3 AG? 14 21 37.1587109544 +50 23 25.213692840   15.3       ~ 21 0
91 SDSS J142145.79+503022.1 G 14 21 45.79667 +50 30 22.1979           ~ 2 0
92 LEDA 2371585 AG? 14 21 50.235 +50 23 18.16           ~ 8 0
93 DELS 8001587209000607 G 14 22 08.2 +50 40 03           ~ 1 0
94 NGC 5602 GiG 14 22 18.8342662128 +50 30 04.871729088   13.5       ~ 63 0
95 DELS 8000312512003375 G 14 23 20.6 -03 11 54           ~ 1 0
96 DELS 8000311074003425 G 14 23 37.6 -03 27 05           ~ 1 0
97 NGC 5604 AG? 14 24 42.806 -03 12 43.71   13.7   12.836 13.1 ~ 79 0
98 DELS 8000312514000643 G 14 25 35.1 -03 20 05           ~ 1 0
99 NGC 5633 EmG 14 27 28.3616823288 +46 08 47.521403916   13.176 12.932 12.449 11.575 ~ 195 1
100 LEDA 135851 LSB 14 35 50.110 +02 36 22.55   16.8       ~ 19 0
101 NGC 5690 GiG 14 37 41.0621949635 +02 17 27.095213875   13.10       ~ 182 1
102 SDSS J143826.51+015601.4 AG? 14 38 26.519 +01 56 01.40           ~ 6 0
103 LEDA 1231422 AG? 14 39 39.305 +02 34 54.51           ~ 13 0
104 2MASXI J1445157-000935 LSB 14 45 15.810 -00 09 34.31   15.78       ~ 23 0
105 NGC 5750 Sy2 14 46 11.1282138720 -00 13 22.522793124   16.23 15.58     ~ 131 0
106 LEDA 184842 AG? 14 58 07.829 -01 18 45.25   16.32   15.38   ~ 11 0
107 NGC 5792 Sy2 14 58 22.709 -01 05 27.89   11.8   11.8 11.1 ~ 194 1
108 DELS 8000328387000094 G 14 59 53.1 -00 37 01           ~ 1 0
109 Z 20-40 GiG 15 00 01.310 -01 05 27.86   15.5       ~ 19 0
110 NGC 5865 GiP 15 09 49.4195561280 +00 28 12.385857792   13.5       ~ 99 0
111 NGC 5896 GiP 15 13 50.6720317776 +42 01 27.249660516   16       ~ 11 0
112 MCG+03-40-008 AG? 15 35 08.812 +16 52 15.76           ~ 14 0
113 NGC 5962 GiP 15 36 31.6809457296 +16 36 27.933030504 12.04 11.98 11.34     ~ 258 1
114 Z 107-11 GiP 15 36 31.895 +16 26 25.38   14.70       ~ 36 1
115 LEDA 214509 G 16 31 18.201 +20 12 38.97           ~ 5 0
116 NGC 6168 GiP 16 31 21.477 +20 11 01.38   15.22       ~ 99 0
117 LEDA 2807207 GiP 16 31 30.573 +20 05 37.05           ~ 11 0
118 SDSS J163212.32+194144.6 G 16 32 12.3314139504 +19 41 44.676106044           ~ 2 0
119 NGC 6181 H2G 16 32 20.96927 +19 49 35.7710   12.7       ~ 258 1
120 SDSS J163236.49+194836.9 G 16 32 36.499 +19 48 36.93           ~ 3 0
121 SDSS J163239.22+194731.9 G 16 32 39.222 +19 47 31.95           ~ 3 0
122 SDSS J163246.88+195201.2 G 16 32 46.889 +19 52 01.25           ~ 3 0
123 DELS 8000444338000453 G 16 32 50.9 +19 54 00           ~ 1 0
124 LEDA 1611051 AG? 16 33 34.3670711064 +19 56 45.950063280           ~ 10 0
125 SDSS J163419.35+194314.8 G 16 34 19.353 +19 43 14.88           ~ 3 0
126 DELS 8000459129001203 G 16 59 45.4 +22 40 02           ~ 2 0
127 DELS 8000461785003465 G 16 59 52.3 +23 16 49           ~ 2 0
128 Z 139-27 GiG 17 00 14.581 +23 06 22.83   15.3       ~ 64 2
129 SDSS J170033.18+225157.4 AG? 17 00 33.186 +22 51 57.50           ~ 7 0
130 NGC 6276 GiP 17 00 44.982 +23 02 38.43   15.2       ~ 25 1
131 NGC 6278 GiP 17 00 50.3235598776 +23 00 39.735179064   13.8       ~ 173 0
132 DELS 8000459131005849 G 17 01 25.8 +22 52 23           ~ 3 0
133 SDSS J170129.64+224352.0 AG? 17 01 29.63384 +22 43 51.9783           ~ 7 0
134 SDSS J170201.24+230948.7 AG? 17 02 01.24492 +23 09 48.7223           ~ 5 0
135 LEDA 1681024 AG? 17 02 19.014 +23 04 34.92           ~ 8 0
136 DES 168455364 G 20 25 04.0 -46 56 13           ~ 1 0
137 DES 168615265 G 20 26 30.6 -47 24 39           ~ 1 0
138 LEDA 508095 G 20 27 38.5 -46 59 16           ~ 3 0
139 NGC 6909 AG? 20 27 38.9325072768 -47 01 37.164117144   12.76 11.88 11.52   ~ 112 0
140 LEDA 505481 G 20 30 05.4 -47 10 29           ~ 3 0
141 DES 188058282 G 21 11 04.3 -49 14 18           ~ 1 0
142 LEDA 476677 AG? 21 11 40.55 -49 27 25.5   18.611   17.737   ~ 5 0
143 LEDA 479552 G 21 11 42.4 -49 11 15           ~ 4 0
144 NGC 7029 Sy2 21 11 52.0283149344 -49 17 01.291280136   12.54 11.81 11.02   ~ 109 0
145 DES 188072275 G 21 12 04.1 -49 27 48           ~ 1 0
146 LEDA 474875 G 21 12 40.5 -49 37 30           ~ 2 0
147 LEDA 542451 G 21 31 28.2 -43 57 36           ~ 3 0
148 LEDA 546248 G 21 31 53.0 -43 39 14           ~ 4 0
149 LEDA 544671 G 21 31 58.9 -43 47 05           ~ 3 0
150 NGC 7079 GiG 21 32 35.2418074440 -44 04 03.412507188   12.63 11.61 11.08   ~ 128 0
151 MCG-07-44-024 AG? 21 34 32.022 -44 18 53.20   13.72   12.77 13.3 ~ 47 0
152 DES 247126789 G 21 59 01.9 -43 45 11           ~ 1 0
153 MCG-07-45-002 Sy2 21 59 17.8140093336 -43 52 01.109469720   13.97   12.67   ~ 59 0
154 NGC 7166 EmG 22 00 32.9063111088 -43 23 22.828215012   12.64 11.84 11.20   ~ 73 0
155 NGC 7162A GiP 22 00 35.8267 -43 08 23.395   13.54   12.64 13.3 ~ 57 0
156 LEDA 544434 G 22 00 56.3 -43 48 11           ~ 3 0
157 DES 219810437 G 22 01 19.0 -43 08 07           ~ 1 0
158 DES 247096912 LSB 22 01 41.33 -43 18 40.8           ~ 3 0
159 ESO 288-33 AG? 22 02 06.64 -43 16 07.0   16.48   16.16   ~ 10 0
160 DES 247092888 G 22 02 17.2 -43 13 56           ~ 1 0
161 AM 2159-434 G 22 02 49.8 -43 26 41           ~ 3 0
162 LEDA 1068443 EmG 22 23 20.727 -03 39 35.30   16.22   14.70   ~ 12 0
163 MCG-01-57-004 Sy2 22 23 39.1559745984 -03 25 54.005069604   13.2   12.9 12.6 ~ 45 0
164 SDSS J222348.92-034204.3 G 22 23 48.924 -03 42 04.30           ~ 3 0
165 DELS 8000311554004511 G 22 23 53.5 -03 25 47           ~ 2 0
166 LEDA 192092 G 22 23 55.194 -03 16 13.98           ~ 5 0
167 MCG-01-57-007 EmG 22 24 11.551 -03 28 58.41   14.5       ~ 42 0
168 NGC 7328 AG? 22 37 29.2909038096 +10 31 53.624742996   13.99 13.10 12.55 11.46 ~ 95 0
169 DELS 8000390486003212 G 22 37 32.0 +10 18 48           ~ 1 0
170 SDSS J231413.10+045454.0 G 23 14 13.102 +04 54 54.01           ~ 3 0
171 SDSS J231429.15+043025.8 G 23 14 29.157 +04 30 25.82           ~ 4 0
172 NGC 7537 GiP 23 14 34.5173585112 +04 29 54.054910824   13.8       ~ 220 0
173 NGC 7541 GiG 23 14 43.857 +04 32 02.04   12.7       ~ 333 1
174 SDSS J231447.19+043823.8 G 23 14 47.196 +04 38 23.84           ~ 3 0
175 LEDA 1267347 G 23 15 06.458 +04 22 23.51           ~ 5 0
176 LEDA 5808692 G 23 15 29.808 +04 36 47.74           ~ 7 0
177 NGC 7716 AG? 23 36 31.4564531712 +00 17 50.183061252   12.9   13.0 12.6 ~ 180 0
178 LEDA 135900 LSB 23 36 46.865 +00 37 24.28   16.6       ~ 16 0
179 Z 381-16 AG? 23 37 24.151 +00 23 26.76   15.7       ~ 76 0
180 NAME Local Group GrG ~ ~           ~ 9325 0

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