2002MNRAS.330..792K

Query : 2002MNRAS.330..792K

2002MNRAS.330..792K - Mon. Not. R. Astron. Soc., 330, 792-806 (2002/March-2)

Dark matter in dwarf spheroidals - II. Observations and modelling of Draco.

KLEYNA J., WILKINSON M.I., EVANS N.W., GILMORE G. and FRAYN C.

Abstract (from CDS):

We present stellar radial velocity data for the Draco dwarf spheroidal (dSph) galaxy obtained using the AF2/WYFFOS instrument combination on the William Herschel Telescope. Our data set consists of 186 member stars, 159 of which have good quality velocities, extending to a magnitude V ~19.5 with a mean velocity precision of ~2km.s–1. As this survey is based on a high-precision photometric target list, it contains many more Draco members at large radii. For the first time, this allows a robust determination of the radial behaviour of the velocity dispersion in a dSph.

We find statistically strong evidence of a rising velocity dispersion consistent with a dark matter halo that has a gently rising rotation curve. There is a <2σ signature of rotation about the long axis, inconsistent with tidal disruption as the source of the rising dispersion. By comparing our data set with earlier velocities, we find that Draco probably has a binary distribution and fraction comparable to those in the solar neighbourhood.

We apply a novel maximum likelihood algorithm and fit the velocity data to a two parameter spherical model with an adjustable dark matter content and velocity anisotropy. Draco is best fit by a weakly tangentially anisotropic distribution of stellar orbits in a dark matter halo with a very slowly rising rotation law (vcirc∝r0.17). We are able to rule out both a mass-follows-light distribution and an extended halo with a harmonic core at the 2.5 to 3σ significance level, depending on the details of our assumptions about Draco's stellar binary population. Our modelling lends support to the idea that the dark matter in dwarf spheroidals is distributed in the form of massive, nearly isothermal haloes.


Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): stellar dynamics - galaxies: individual: Draco - galaxies: kinematics and dynamics - Local Group - dark matter

VizieR on-line data: <Available at CDS (J/MNRAS/330/792): table1.dat table2.dat>

Nomenclature: Tables 1, 2: [KWE2002] NNN N=186 among (Nos 13-401).

CDS comments: AOP obects: see ref. 1995AJ....110.2131A.

Simbad objects: 189

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Number of rows : 189
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 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
2 SDSS J171733.65+574101.9 * 17 17 33.6480184680 +57 41 01.939685856     19.50     ~ 3 0
3 2MASS J17173857+5804389 Pe* 17 17 38.5744659480 +58 04 39.039509100     17.32     ~ 6 0
4 SDSS J171738.59+575854.5 * 17 17 38.5983991296 +57 58 54.575775300     18.40     ~ 3 0
5 2MASS J17174617+5742219 * 17 17 46.1676683208 +57 42 21.845757312     18.03     ~ 7 0
6 SDSS J171755.37+575559.1 * 17 17 55.3737845088 +57 55 59.119356684     18.18     ~ 3 0
7 SDSS J171756.48+575400.6 * 17 17 56.4843302520 +57 54 00.693432864     19.21     ~ 3 0
8 2MASS J17175835+5805592 * 17 17 58.3808865168 +58 05 59.197828920     18.24     ~ 5 0
9 SDSS J171805.75+581122.5 * 17 18 05.7444475872 +58 11 22.445355120     18.49     ~ 3 0
10 [KWE2002] 13 * 17 18 06.88 +58 15 55.5     18.85     ~ 1 0
11 2MASS J17180807+5801468 Pe* 17 18 08.0639490264 +58 01 46.855335792     17.26     ~ 11 0
12 Irwin Dra 21456 Pe* 17 18 10.3883104824 +57 52 09.013807560     17.15     ~ 13 0
13 SDSS J171813.00+574246.5 * 17 18 13.0065454488 +57 42 46.504319220     18.41     ~ 3 0
14 [KWE2002] 199 * 17 18 24.05 +57 55 08.1     19.84     ~ 1 0
15 [KWE2002] 136 * 17 18 25.19 +57 57 45.6     19.29     ~ 1 0
16 SDSS J171830.54+575146.7 * 17 18 30.5435601672 +57 51 46.663959456     18.50     ~ 3 0
17 [KWE2002] 276 * 17 18 31.14 +57 52 28.1     19.10     ~ 1 0
18 2MASS J17183283+5750561 * 17 18 32.8390997640 +57 50 56.305846644     18.04     ~ 8 0
19 SDSS J171835.68+580050.4 * 17 18 35.6214641928 +58 00 50.199752196     18.79     ~ 3 0
20 [KWE2002] 99 * 17 18 41.3627653224 +57 59 52.036577376     18.37     ~ 2 0
21 2MASS J17184224+5759099 Pe* 17 18 42.2368654488 +57 59 09.923912916     17.20     ~ 11 0
22 2MASS J17184293+5738497 * 17 18 42.9563504496 +57 38 49.654140180     17.93     ~ 7 0
23 SDSS J171844.50+575438.1 * 17 18 44.5033980168 +57 54 38.155105152     18.31     ~ 3 0
24 [KWE2002] 164 * 17 18 45.70 +57 56 29.3     19.27     ~ 1 0
25 SDSS J171845.84+580732.8 * 17 18 45.8362426872 +58 07 32.861561736     19.35     ~ 3 0
26 SDSS J171850.85+574137.4 * 17 18 50.8602287208 +57 41 37.381233192     19.45     ~ 3 0
27 2MASS J17185211+5804130 Pe* 17 18 52.1019858337 +58 04 12.923459948     17.246   15.734 ~ 12 0
28 SDSS J171856.07+574345.2 * 17 18 56.0769241032 +57 43 45.284258892     19.15     ~ 3 0
29 2MASS J17185759+5754142 Pe* 17 18 57.5871217968 +57 54 14.159855484     17.757   16.451 ~ 9 0
30 2MASS J17185773+5755463 Pe* 17 18 57.7400500704 +57 55 46.199690688     17.810   16.533 ~ 8 0
31 2MASS J17185826+5748577 Pe* 17 18 58.2661350685 +57 48 57.592606580     17.535   16.194 ~ 10 0
32 2MASS J17190356+5746425 * 17 19 03.5717449584 +57 46 42.396386988     17.906   16.599 ~ 10 0
33 SDSS J171904.30+574708.6 * 17 19 04.2991925256 +57 47 08.657513124     19.098   18.026 ~ 3 0
34 SDSS J171907.73+580019.6 * 17 19 07.7269898712 +58 00 19.654251372   19.545 18.850 18.417 17.883 ~ 6 0
35 SDSS J171910.26+575437.5 * 17 19 10.2610337208 +57 54 37.499749164     18.982   17.858 ~ 4 0
36 2MASS J17191081+5759173 Pe* 17 19 10.8124366776 +57 59 17.294525664   18.072 17.227 16.357 15.653 ~ 16 0
37 2MASS J17191225+5802577 Pe* 17 19 12.2560519752 +58 02 57.722966160     17.426   16.002 ~ 11 0
38 2MASS J17191342+5752334 Pe* 17 19 13.4494384584 +57 52 33.322726776   18.300 17.514 16.685 16.108 ~ 14 0
39 SDSS J171913.88+575155.0 * 17 19 13.8733329384 +57 51 55.030389696     19.096   18.001 ~ 4 0
40 2MASS J17191694+5815508 Pe* 17 19 16.9238566656 +58 15 50.910887736     18.26     ~ 8 0
41 SDSS J171917.59+575432.1 * 17 19 17.5954960056 +57 54 32.127400620   18.767 18.118 17.384 16.781 ~ 8 0
42 SDSS J171918.63+575103.4 * 17 19 18.6283666056 +57 51 03.445593624   19.425 18.922 18.290 17.761 ~ 6 0
43 SDSS J171920.00+574904.8 * 17 19 19.9938811368 +57 49 04.872342396     18.661   17.477 ~ 4 0
44 2MASS J17191999+5759430 * 17 19 19.9943172120 +57 59 43.111532364   19.042 18.412 17.731 17.148 ~ 10 0
45 SDSS J171921.70+580040.4 * 17 19 21.7049197512 +58 00 40.457004768     18.383   17.169 ~ 4 0
46 SDSS J171921.81+580152.1 * 17 19 21.8120639112 +58 01 52.159932372     18.309   17.063 ~ 4 0
47 SDSS J171922.52+575013.0 * 17 19 22.5179608920 +57 50 13.004594016     18.970   17.811 ~ 4 0
48 SDSS J171922.91+575530.6 * 17 19 22.9179820488 +57 55 30.614534292     18.459   17.391 ~ 5 0
49 [BFO2002] Dra 60181 * 17 19 23.2489406880 +57 51 01.236966768     19.377   18.343 ~ 2 0
50 [BFO2002] Dra 60278 * 17 19 26.7877909080 +57 55 51.688668540     19.025   17.883 ~ 2 0
51 2MASS J17193185+5733347 * 17 19 31.8735830424 +57 33 34.716112452     17.99     ~ 7 0
52 SDSS J171932.80+574948.8 * 17 19 32.7983603568 +57 49 48.804871152     18.895   17.745 ~ 4 0
53 SDSS J171934.36+574611.5 * 17 19 34.3623032256 +57 46 11.561624724     18.431   17.305 ~ 4 0
54 SDSS J171934.68+574805.0 * 17 19 34.6742749080 +57 48 04.967665416   19.132 18.449 18.026 17.505 ~ 7 0
55 2MASS J17193545+5758465 RG* 17 19 35.4526699200 +57 58 46.544742804   18.286 17.488 16.681 15.978 ~ 18 0
56 2MASS J17193600+5756289 Pe* 17 19 36.0078870960 +57 56 28.901490648   18.80 17.611   16.208 ~ 22 0
57 Irwin Dra 21604 * 17 19 36.3076502448 +57 51 24.823104336   18.225 17.424 16.580 15.912 ~ 10 0
58 [BFO2002] Dra 50116 * 17 19 36.6310320984 +58 02 50.302811292     18.874   17.717 G2 3 0
59 SDSS J171937.09+580520.0 * 17 19 37.0852549800 +58 05 20.060354580     19.093   17.939 ~ 4 0
60 SDSS J171937.70+574918.5 * 17 19 37.6987177992 +57 49 18.492290220     19.333   18.244 ~ 4 0
61 [BS61] 490 RG* 17 19 39.9656177760 +57 54 24.794161056   18.8 17.673   16.314 ~ 13 0
62 [BS61] 297 RG* 17 19 41.1456830616 +57 54 56.651267808   19 17.937   16.639 ~ 7 0
63 2MASS J17194237+5758376 C* 17 19 42.3804331752 +57 58 37.682045652     17.25   15.99 C 20 0
64 [BS61] 286 RG* 17 19 45.1302240888 +57 55 14.219842476   18.95 17.827   16.469 ~ 8 0
65 2MASS J17194767+5748365 Pe* 17 19 47.6847395712 +57 48 36.554656752   18.124 17.280 16.423 15.706 ~ 16 0
66 [BFO2002] Dra 60056 * 17 19 49.3171180656 +57 51 00.575060220     18.286   17.134 ~ 2 0
67 [BS61] 273 RG* 17 19 50.0387716800 +57 56 40.621067556   19.33 18.186 17.667 17.065 ~ 10 0
68 [BS61] 449 RG* 17 19 51.8103472800 +57 59 17.751266700   18.77 17.593   16.190 ~ 12 0
69 [BS61] 506 RG* 17 19 53.0469384360 +57 51 37.824248052   19.07 18.020   16.785 ~ 11 0
70 [BFO2002] Dra 10201 RG* 17 19 53.4470926296 +57 56 16.377877392   19.39 18.395   17.185 ~ 7 0
71 SDSS J171953.83+580644.1 * 17 19 53.8325304168 +58 06 44.100913068     18.416   17.198 ~ 4 0
72 SDSS J171955.06+573300.1 * 17 19 55.0604993760 +57 33 00.195073380     19.66     ~ 2 0
73 [BS61] K RG* 17 19 55.7765467368 +57 53 48.637017816   19.27 18.251   17.019 ~ 5 0
74 [KWE2002] 254 * 17 19 56.2301603712 +57 53 29.366440044     19.588   18.607 ~ 2 0
75 SDSS J171956.38+575916.0 * 17 19 56.3884518936 +57 59 15.993989556   19.152 18.546 17.870 17.307 ~ 7 0
76 [BFO2002] Dra 10157 RG* 17 19 56.5877103672 +57 52 42.827166768   19.36 18.505   17.334 ~ 5 0
77 [BFO2002] Dra 10150 RG* 17 19 56.9078371776 +57 52 22.886363424   19.35 18.494   17.381 ~ 4 0
78 [BFO2002] Dra 10312 RG* 17 19 57.0227772048 +57 52 57.803136636   19.52 18.500 18.056 17.613 ~ 6 0
79 BASV 68 C* 17 19 57.2986612680 +57 55 04.529209404   19.107 18.429 17.679 17.086 C 8 0
80 [BFO2002] Dra 10184 RG* 17 19 57.6524628936 +57 54 35.120386044   19.46 18.451   17.255 ~ 4 0
81 SDSS J171957.90+580120.0 * 17 19 57.9021892392 +58 01 20.031348612   19.391 18.674 18.218 17.644 ~ 6 0
82 [BS61] 45 RG* 17 19 57.9132880008 +57 56 58.340036040   18.79 17.748 16.978 16.439 ~ 13 0
83 SDSS J172001.52+580133.3 * 17 20 01.5210622200 +58 01 33.358880496     19.046   17.899 ~ 4 0
84 [BS61] 22 RG* 17 20 01.5947518752 +57 57 04.554010872   19.21 18.246   16.992 ~ 9 0
85 SDSS J172001.94+575130.3 RG* 17 20 01.9496500344 +57 51 30.325507308   19.7 18.688 18.225 17.771 ~ 8 0
86 SDSS J172002.76+574857.1 RG* 17 20 02.7594298176 +57 48 57.133267020   20.02 19.419   18.368 ~ 5 0
87 Irwin Dra 21934 RG* 17 20 05.3256366720 +57 50 18.128548212   19.12 18.232   17.039 ~ 6 0
88 [BS61] 11 RG* 17 20 05.6705078064 +57 57 52.723124172   18.82 17.679 16.877 16.318 ~ 17 0
89 SDSS J172006.06+580250.0 * 17 20 06.0682878096 +58 02 50.045693064     19.314   18.206 ~ 4 0
90 [BS61] 335 RG* 17 20 06.9056125080 +57 52 37.077861288   19.23 18.209 17.468 16.886 ~ 10 0
91 SDSS J172007.45+575432.6 * 17 20 07.4522244216 +57 54 32.639340204   19.384 18.621 18.149 17.692 ~ 8 0
92 2MASS J17200969+5746292 * 17 20 09.7152679680 +57 46 29.327781864     17.856   16.545 ~ 8 0
93 SDSS J172010.47+575820.8 * 17 20 10.4821329168 +57 58 20.786601684     18.572   17.380 ~ 4 0
94 SDSS J172011.02+575645.6 * 17 20 11.0247575232 +57 56 45.628034784     19.220   18.096 ~ 4 0
95 Irwin Dra 22175 RG* 17 20 11.6351030904 +57 49 36.381168048   19.12 18.195   16.957 ~ 10 0
96 [BFO2002] Dra 10303 * 17 20 13.1842337136 +57 52 19.531391232   20.042 19.338 18.905 18.392 ~ 4 0
97 [BS61] 522 RG* 17 20 13.3866478248 +57 50 51.678992976   19.13 18.182   16.939 ~ 9 0
98 2MASS J17201351+5751591 * 17 20 13.5263169960 +57 51 59.175138240   18.432 17.714 16.919 16.389 ~ 18 0
99 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
100 SDSS J172014.52+581251.4 * 17 20 14.5191644760 +58 12 51.394537332     18.43     ~ 3 0
101 SDSS J172014.80+575625.4 * 17 20 14.8073656224 +57 56 25.451562732     19.062   17.942 ~ 4 0
102 SDSS J172015.20+580034.9 * 17 20 15.2228692824 +58 00 34.951924008     18.896   17.740 ~ 4 0
103 [BS61] H RG* 17 20 15.7131795240 +57 53 43.265851152   19.12 18.274   17.124 ~ 6 0
104 SDSS J172015.85+575502.7 * 17 20 15.8578961496 +57 55 02.787677472     19.881   18.874 ~ 3 0
105 SDSS J172016.49+574840.3 * 17 20 16.4948045784 +57 48 40.297198032   19.961 19.276 18.852 18.335 ~ 5 0
106 [BFO2002] Dra 10167 RG* 17 20 16.9841240832 +57 53 12.227149572   19.2 18.160   16.875 ~ 5 0
107 2MASS J17201703+5756123 Pe* 17 20 17.0140564104 +57 56 12.282749556   19.23 18.318   17.100 ~ 12 0
108 2MASS J17201700+5759019 Pe* 17 20 17.0180955768 +57 59 01.971825936     17.795   16.453 ~ 12 0
109 SDSS J172017.98+580111.8 * 17 20 17.9852828520 +58 01 11.798766012   19.316 18.586 18.122 17.536 ~ 6 0
110 SDSS J172018.59+574601.1 * 17 20 18.6000672816 +57 46 01.111711188     19.023   17.945 ~ 4 0
111 [BS61] 350 RG* 17 20 20.3796592464 +57 51 58.206483360   19.18 18.341   17.161 ~ 6 0
112 Irwin Dra 22209 RG* 17 20 21.1218936000 +57 49 27.148942848   18.78 17.715   16.391 ~ 11 0
113 SDSS J172023.71+580524.1 * 17 20 23.7176592480 +58 05 24.173156832   19.339 18.615 18.166 17.630 ~ 6 0
114 SDSS J172024.10+575515.4 RG* 17 20 24.1082553912 +57 55 15.397606200   19.9 19.098   17.984 ~ 5 0
115 SDSS J172024.20+581120.4 * 17 20 24.2011983960 +58 11 20.371051572     19.39     ~ 3 0
116 [BFO2002] Dra 10212 * 17 20 24.5251697568 +57 57 08.115373332   19.188 18.379 17.880 17.410 ~ 6 0
117 [BFO2002] Dra 10356 RG* 17 20 24.9736472136 +57 54 50.629117716   19.61 18.743   17.588 ~ 3 0
118 2MASS J17202734+5756523 Pe* 17 20 27.3761155128 +57 56 52.339976520   18.60 17.733   16.407 ~ 11 0
119 2MASS J17203116+5758060 Pe* 17 20 31.1783459016 +57 58 05.444815944     18.245   16.985 ~ 9 0
120 SDSS J172031.66+575055.0 * 17 20 31.6650395568 +57 50 55.024753164   18.935 18.337 17.602 17.020 ~ 7 0
121 SDSS J172032.13+580539.8 * 17 20 32.1328149000 +58 05 39.900005124   19.862 19.222 18.820 18.301 ~ 6 0
122 [BFO2002] Dra 10558 * 17 20 33.4871053872 +57 58 06.140634960     19.364   18.314 ~ 2 0
123 [ALS82] C3 C* 17 20 33.5335083840 +57 50 19.552559244   18.5 17.633   16.257 C 19 0
124 SDSS J172034.10+575822.4 * 17 20 34.1094023112 +57 58 22.450932840     18.609   17.405 ~ 3 0
125 2MASS J17203417+5753319 RG* 17 20 34.1892381840 +57 53 31.886976552   18.380 17.592 16.741 16.081 ~ 23 0
126 2MASS J17203441+5747167 * 17 20 34.41 +57 47 16.7     18.828   17.617 ~ 2 0
127 SDSS J172034.76+575956.7 * 17 20 34.7678767200 +57 59 56.775065568   18.88 17.783   16.398 ~ 9 0
128 SDSS J172036.05+582340.9 * 17 20 36.0472341480 +58 23 40.997116716     18.78     ~ 2 0
129 SDSS J172039.70+575050.0 * 17 20 39.7055971488 +57 50 49.996018068     18.735   17.629 ~ 4 0
130 SDSS J172039.84+575115.2 * 17 20 39.8429655312 +57 51 15.222798288   18.900 18.272 17.539 16.951 ~ 8 0
131 2MASS J17204018+5747067 Pe* 17 20 40.1884393440 +57 47 06.931552272     17.949   16.639 ~ 9 0
132 SDSS J172040.31+575618.1 * 17 20 40.3123415664 +57 56 18.099632940   19.52 18.702   17.523 ~ 6 0
133 SDSS J172041.06+575825.6 * 17 20 41.0627454048 +57 58 25.588110324   19.362 18.620 18.162 17.625 ~ 7 0
134 [BFO2002] Dra 10327 * 17 20 41.5782016176 +57 53 16.544681916   19.556 18.859 18.430 17.917 ~ 5 0
135 SDSS J172044.54+575139.5 * 17 20 44.5429408200 +57 51 39.501758232     18.932   17.805 ~ 4 0
136 SDSS J172044.73+575459.3 * 17 20 44.7286624584 +57 54 59.343683616   19.798 19.057 18.617 18.147 ~ 8 0
137 SDSS J172045.43+574900.0 * 17 20 45.4277612112 +57 49 00.007424364     18.593   17.392 ~ 4 0
138 [BFO2002] Dra 10307 * 17 20 45.5703859752 +57 52 24.601233036     19.646   18.558 ~ 2 0
139 SDSS J172047.77+575955.5 * 17 20 47.7761860488 +57 59 55.470019344     17.470   16.020 ~ 6 0
140 2MASS J17205095+5751092 * 17 20 50.9363220816 +57 51 09.646222572     17.949   16.713 ~ 8 0
141 SDSS J172051.15+573814.1 * 17 20 51.1557173352 +57 38 14.125425108     18.71     ~ 3 0
142 2MASS J17205204+5759477 Pe* 17 20 52.0616339640 +57 59 47.738175324   18.365 17.590 16.756 16.093 ~ 12 0
143 SDSS J172053.72+575812.5 * 17 20 53.7216016176 +57 58 12.498793104   18.807 18.153 17.396 16.773 ~ 6 0
144 2MASS J17205373+5754404 * 17 20 53.7355321848 +57 54 40.390335972     17.937   16.632 ~ 9 0
145 [BFO2002] Dra 10433 * 17 20 55.5101009088 +57 57 20.383410312     19.670   18.599 ~ 2 0
146 SDSS J172055.52+574434.3 * 17 20 55.5228136152 +57 44 34.314867816     18.846   17.701 ~ 4 0
147 SDSS J172056.57+580235.0 * 17 20 56.5723118784 +58 02 35.048312232   19.730 19.010 18.561 18.017 ~ 6 0
148 [BFO2002] Dra 20117 * 17 20 56.6632684848 +57 51 57.274317324   19.212 18.683 18.000 17.458 ~ 6 0
149 SDSS J172059.02+574816.0 * 17 20 59.0177120016 +57 48 15.982617204     19.671   18.622 ~ 3 0
150 [BFO2002] Dra 90069 * 17 20 59.2890096072 +57 47 21.835266000     18.834   17.771 ~ 2 0
151 SDSS J172100.16+574637.6 * 17 21 00.1700092056 +57 46 37.672513428     18.922   17.783 ~ 4 0
152 2MASS J17210223+5815384 Pe* 17 21 02.2276319688 +58 15 38.244802536     17.15   15.75 ~ 11 0
153 SDSS J172103.21+575559.3 * 17 21 03.2075926992 +57 55 59.310983208     18.401   17.151 ~ 5 0
154 2MASS J17210352+5757082 Pe* 17 21 03.5474358144 +57 57 08.179182972     17.449   16.035 ~ 13 0
155 SDSS J172103.69+573954.2 * 17 21 03.6912467040 +57 39 54.251265060     19.88     ~ 3 0
156 2MASS J17210484+5802011 Pe* 17 21 04.8305502360 +58 02 00.997632240     18.271   17.004 ~ 9 0
157 SDSS J172105.80+580454.9 * 17 21 05.8002156048 +58 04 54.865113312     19.147   18.082 ~ 4 0
158 [BFO2002] Dra 30592 * 17 21 07.7466929304 +58 01 09.223262076     19.760   18.696 ~ 2 0
159 [KWE2002] 386 * 17 21 10.1473045896 +57 38 02.178340152     18.26     ~ 1 0
160 SDSS J172110.39+574753.2 * 17 21 10.3951683456 +57 47 53.257363944     18.439   17.244 ~ 5 0
161 SDSS J172113.83+575245.7 * 17 21 13.8304214064 +57 52 45.725134116   19.598 18.848 18.385 17.842 ~ 6 0
162 [BFO2002] Dra 20033 * 17 21 14.2189088712 +57 52 22.286223588     18.355   17.168 ~ 3 0
163 SDSS J172117.89+575621.2 * 17 21 17.8841374320 +57 56 21.244036416     18.638   17.446 ~ 4 0
164 SDSS J172122.28+580215.4 * 17 21 22.2774497184 +58 02 15.454406760   19.675 18.943 18.486 17.934 ~ 6 0
165 [BFO2002] Dra 20510 * 17 21 22.4360 +57 51 04.090     19.777   18.708 ~ 2 0
166 2MASS J17213025+5750163 * 17 21 30.2752383360 +57 50 16.284676236     17.636   16.280 ~ 9 0
167 SDSS J172135.38+575459.2 * 17 21 35.3811024624 +57 54 59.206895676     19.343   18.274 ~ 4 0
168 SDSS J172136.80+575836.9 * 17 21 36.8001988992 +57 58 36.981162480   19.566 18.874 18.443 17.913 ~ 6 0
169 SDSS J172137.77+580052.2 * 17 21 37.7707407408 +58 00 52.213262940   19.562 18.843 18.392 17.835 ~ 6 0
170 [BFO2002] Dra 20690 * 17 21 39.2270 +57 56 58.095     19.698   18.573 ~ 2 0
171 SDSS J172139.36+574640.0 * 17 21 39.3658459656 +57 46 40.060217460     18.02     ~ 4 0
172 2MASS J17214034+5747320 * 17 21 40.3543929792 +57 47 31.982099748     17.41     ~ 11 0
173 SDSS J172141.79+575550.7 * 17 21 41.7935589600 +57 55 50.717654184   19.691 18.977 18.534 17.998 ~ 6 0
174 SDSS J172142.55+581433.0 * 17 21 42.5511550296 +58 14 33.012036744     18.69     ~ 3 0
175 SDSS J172149.18+575337.0 * 17 21 49.1776464024 +57 53 37.039604280   19.278 18.461 17.957 17.390 ~ 5 0
176 2MASS J17215694+5759339 Pe* 17 21 56.9486618256 +57 59 33.802027188   18.781 17.900 17.351 16.731 ~ 11 0
177 SDSS J172202.28+580117.2 * 17 22 02.2870367928 +58 01 17.284879956     19.77     ~ 3 0
178 SDSS J172203.60+574507.2 * 17 22 03.6017621904 +57 45 07.181225352     18.90     ~ 3 0
179 2MASS J17220376+5741287 * 17 22 03.7619182536 +57 41 28.614940404     17.68     ~ 6 0
180 SDSS J172206.07+580011.7 * 17 22 06.0695246136 +58 00 11.787872832     19.13     ~ 3 0
181 SDSS J172206.54+575610.2 * 17 22 06.5400068784 +57 56 10.229028432     19.52     ~ 3 0
182 SDSS J172210.68+575357.7 * 17 22 10.7023070808 +57 53 57.358959540     17.47     ~ 4 0
183 SDSS J172211.20+575633.1 * 17 22 11.2043143344 +57 56 33.161688600     18.43     ~ 3 0
184 2MASS J17221363+5753065 Pe* 17 22 13.6400313888 +57 53 06.361992528   18.198 17.185 16.554 15.874 ~ 14 0
185 [KWE2002] 141 * 17 22 18.65 +57 57 19.4     19.06     ~ 2 0
186 SDSS J172227.13+574554.3 * 17 22 27.1198245480 +57 45 54.337482144     19.01     ~ 3 0
187 SDSS J172233.51+574803.7 * 17 22 33.5129397144 +57 48 03.729216888     19.14     ~ 3 0
188 SDSS J172243.68+575730.7 * 17 22 43.6815007896 +57 57 30.712483224   19.423 18.691 18.239 17.705 ~ 5 0
189 NAME Local Group GrG ~ ~           ~ 9325 0

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