2021A&A...647A.167Y


Query : 2021A&A...647A.167Y

2021A&A...647A.167Y - Astronomy and Astrophysics, volume 647A, 167-167 (2021/3-1)

Evolved massive stars at low-metallicity. IV. Using the 1.6 µm H-bump to identify red supergiant stars: Case study of NGC 6822.

YANG M., BONANOS A.Z., JIANG B., LAM M.I., GAO J., GAVRAS P., MARAVELIAS G., WANG S., CHEN X.-D., TRAMPER F., REN Y. and SPETSIERI Z.T.

Abstract (from CDS):

We present a case study in which we used a novel method to identify red supergiant (RSG) candidates in NGC 6822 based on their 1.6 µm H-bump. We collected 32 bands of photometric data for NGC 6822 ranging from the optical to the mid-infrared, derived from Gaia, PS1, LGGS, VHS, UKIRT, IRSF, HAWK-I, Spitzer, and WISE. Using the theoretical spectra from MARCS, we demonstrate that there is a prominent difference around 1.6µm (H-bump) between targets with high and low surface gravity (HSG and LSG). Taking advantage of this feature, we identify efficient color-color diagrams of rzH (r-z vs. z-H) and rzK (r-z vs. z-K) to separate HSG (mostly foreground dwarfs) and LSG targets (mainly background red giant stars, asymptotic giant branch stars, and RSGs) from crossmatching of optical and near-infrared (NIR) data. Moreover, synthetic photometry from ATLAS9 gives similar results. We further separated RSG candidates from the remaining LSG candidates as determined by the H-bump method by using semi-empirical criteria on NIR color-magnitude diagrams, where both the theoretic cuts and morphology of the RSG population are considered. This separation produced 323 RSG candidates. The simulation of foreground stars with Besancon models also indicates that our selection criteria are largely free from the contamination of Galactic giants. In addition to the H-bump method, we used the traditional BVR method (B-V vs. V-R) as a comparison and/or supplement by applying a slightly aggressive cut to select as many RSG candidates as possible (358 targets). Furthermore, the Gaia astrometric solution was used to constrain the sample, where 181 and 193 targets were selected with the H-bump and BVR method, respectively. The percentages of selected targets in the two methods are similar at ∼60%, indicating a comparable accuracy of the two methods. In total, there are 234 RSG candidates after combining targets from the two methods, and 140 (∼60%) of them are in common. The final RSG candidates are in the expected locations on the mid-infrared color-magnitude diagram with [3.6]-[4.5]≤0 and J-[8.0]≃1.0. The spatial distribution is also coincident with the far-ultraviolet-selected star formation regions, suggesting that the selection is reasonable and reliable. We indicate that our method can also be used to identify other LSG targets, such as red giants and asymptotic giant branch stars, and it can also be applied to most of the nearby galaxies by using recent large-scale ground-based surveys. Future ground- and space-based facilities may promote its application beyond the Local Group.

Abstract Copyright: © ESO 2021

Journal keyword(s): infrared: stars - galaxies: dwarf - stars: late-type - stars: massive - stars: mass-loss - stars: variables: general

VizieR on-line data: <Available at CDS (J/A+A/647/A167): rsg.dat gaia.dat ps1.dat lggs.dat ukirt.dat vhs.dat irsf.dat hawki.dat spitzer.dat wise.dat>

Simbad objects: 240

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Number of rows : 240
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12634 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11135 1
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7056 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17416 0
5 Gaia DR3 4182468019321663104 s?r 19 43 51.3430070062 -14 39 45.696862168           ~ 1 0
6 [SRC2012] 295.996674-14.726894 s?r 19 43 59.2028565315 -14 43 36.842185356           ~ 2 0
7 Gaia DR3 4182451453631986304 s?r 19 44 12.2760001634 -14 46 23.330438948           ~ 1 0
8 [SRC2012] 296.072174-14.811717 s?r 19 44 17.3336322000 -14 48 42.186002652           ~ 2 0
9 Gaia DR3 4182449941803256576 s?r 19 44 21.7579043097 -14 50 41.080933564           ~ 1 0
10 Gaia DR3 4182449976170541568 s?r 19 44 24.4971628734 -14 49 34.681816944           ~ 1 0
11 [M98a] NGC 6822a-141 s?r 19 44 25.7609444400 -14 41 51.029366892   21.96 20.26     ~ 3 0
12 [M98a] NGC 6822a-178 s?r 19 44 28.3309746697 -14 41 17.755791896   21.30 19.69     ~ 2 0
13 [M98a] NGC 6822a-179 s?r 19 44 28.3362517058 -14 45 38.736264076   21.50 19.89     ~ 2 0
14 2MASS J19442973-1452369 s?r 19 44 29.7439501968 -14 52 36.975334476           ~ 3 0
15 2MASS J19443034-1448360 s?r 19 44 30.3550329285 -14 48 36.017883236           ~ 3 0
16 2MASS J19443069-1439174 s?r 19 44 30.7126105176 -14 39 17.660571588           ~ 2 0
17 2MASS J19443208-1449267 s?r 19 44 32.0861667975 -14 49 26.811215065           ~ 2 0
18 2MASS J19443243-1438049 s?r 19 44 32.4618352080 -14 38 05.086044312           ~ 2 0
19 Gaia DR3 4182439530802291200 s?r 19 44 33.4825095770 -14 56 56.684328508           ~ 1 0
20 [M98a] NGC 6822a-255 s?r 19 44 33.5451632880 -14 40 46.303893732   21.56 19.90     ~ 3 0
21 Gaia DR3 4182450525918979072 s?r 19 44 34.7987316432 -14 47 35.644340300           ~ 1 0
22 [M98a] NGC 6822a-298 s?r 19 44 36.6639389227 -14 40 54.951576192   21.96 20.46     ~ 2 0
23 Gaia DR3 4182447025520604032 s?r 19 44 37.9580572907 -14 50 58.766075348           ~ 1 0
24 Gaia DR3 4182445749914993920 s?r 19 44 39.0501455835 -14 54 35.849508756           ~ 1 0
25 Gaia DR3 4182450560278705920 s?r 19 44 39.5088077967 -14 47 43.754634080           ~ 1 0
26 Gaia DR3 4182450564580008576 s?r 19 44 39.8534732277 -14 47 25.612797144           ~ 1 0
27 Gaia DR3 4182445857295763840 s?r 19 44 40.5853959080 -14 53 32.028951188           ~ 1 0
28 Gaia DR3 4182446819368473216 s?r 19 44 40.8067696575 -14 51 22.149776184           ~ 1 0
29 [M98a] NGC 6822b-235 s?r 19 44 41.1900798728 -14 42 57.829907544   20.86 19.40     ~ 3 0
30 Gaia DR3 4182447193024200064 s?r 19 44 41.9377410598 -14 50 28.066175900           ~ 1 0
31 Gaia DR3 4182450564573827584 s?r 19 44 42.2761909505 -14 47 52.120633652           ~ 1 0
32 Gaia DR3 4182447609636253952 s?r 19 44 42.4941023574 -14 48 42.717111740           ~ 1 0
33 2MASS J19444325-1451516 s?r 19 44 43.2597081023 -14 51 51.653076878           ~ 2 0
34 [M98a] NGC 6822b-15 s*r 19 44 43.8020307360 -14 46 11.100391248   20.83 18.59 17.23   M/KI 5 0
35 2MASS J19444382-1451313 s?r 19 44 43.8328669200 -14 51 31.383433980           ~ 3 0
36 Gaia DR3 4182446746347541888 s?r 19 44 44.2926796507 -14 51 36.179112932           ~ 1 0
37 2MASS J19444502-1451187 s?r 19 44 45.0388965432 -14 51 18.713716668           ~ 3 0
38 DENIS J194445.3-145124 s?r 19 44 45.3079984907 -14 51 25.230249564         17.50 ~ 2 0
39 LGGS J194445.76-145221.2 s*r 19 44 45.7487554800 -14 52 21.777160296   19.93 17.71 16.5   M1I 6 0
40 2MASS J19444581-1450509 s?r 19 44 45.8158530078 -14 50 51.096404028           ~ 2 0
41 2MASS J19444596-1451029 s*r 19 44 45.9748062120 -14 51 02.883440880   20.91 18.96 17.89   M/KI 6 0
42 Gaia DR3 4182251617396115456 s?r 19 44 46.4005820755 -14 58 49.343868968           ~ 1 0
43 Gaia DR3 4182452076408487424 s?r 19 44 46.6354189354 -14 46 39.473383860           ~ 1 0
44 CW Red 41 s*r 19 44 47.1167149728 -14 46 27.477331176   21.30 19.41 18.41   M/KI 4 0
45 2MASS J19444712-1435069 s?r 19 44 47.1299076552 -14 35 06.944995572           ~ 3 0
46 [M98a] NGC 6822b-337 s?r 19 44 47.4357181362 -14 42 56.355424708   21.92 19.97     ~ 2 0
47 CW Blue 97 s?r 19 44 47.4423810004 -14 44 08.240595804   20.06 19.83     ~ 4 0
48 LGGS J194447.56-145215.4 s*r 19 44 47.5549456272 -14 52 15.955698648   21.18 19.13 18.01   K5I 3 0
49 Gaia DR3 4182449117173009280 s?r 19 44 47.7472550217 -14 47 32.945317892           ~ 1 0
50 [K67] V32 s*r 19 44 47.7985307784 -14 50 53.058219072   20.74 19.80 17.22   M1I 10 0
51 Gaia DR3 4182446372685291136 s?r 19 44 48.0433130275 -14 52 09.953492228           ~ 1 0
52 CW Red 25 s?r 19 44 48.0942140664 -14 45 18.468320616 22.59 20.51 18.48 17.41 16.44 ~ 5 0
53 Gaia DR3 4182447162965834752 s?r 19 44 48.3133736959 -14 51 02.897162836           ~ 1 0
54 Gaia DR3 4182446372685332352 s?r 19 44 48.9290688523 -14 51 28.642305648           ~ 1 0
55 [BD2011] 3 Mi* 19 44 48.9760084919 -14 38 05.431767964           ~ 6 0
56 LGGS J194449.62-145327.3 s?r 19 44 49.6089960360 -14 53 27.837876876   21.23 19.47 18.52   ~ 2 0
57 CW Red 7 s*r 19 44 49.9463219064 -14 43 33.874256100 22.37 20.28 18.07 16.78   K5I 7 0
58 Gaia DR3 4182447162959351296 s?r 19 44 50.0349967836 -14 50 45.544214016           ~ 1 0
59 [SRC2012] 296.208588-14.739369 s?r 19 44 50.0722058136 -14 44 21.840652248           ~ 2 0
60 [M98a] NGC 6822b-918 s?r 19 44 50.1151807228 -14 44 31.614151784   21.89 20.35     ~ 2 0
61 [M98a] NGC 6822b-401 s?r 19 44 50.1228675084 -14 45 01.255642436   21.61 20.11     ~ 2 0
62 [M98a] NGC 6822b-405 s?r 19 44 50.2053140712 -14 45 20.993641120   21.77 20.13     ~ 2 0
63 CW Red 16 s*r 19 44 50.4254397456 -14 44 10.421310516   20.46 18.46 17.41   M2I 6 0
64 CW Red 47 s*r 19 44 50.5359059544 -14 48 01.915821108   20.83 18.95 17.97 17.05 M/KI 3 0
65 CW Red 36 s?r 19 44 50.6156936043 -14 46 14.598435412   20.94 19.13     ~ 3 0
66 Gaia DR3 4182452278268959360 s?r 19 44 50.8095872809 -14 44 53.164795472           ~ 1 0
67 [H25] V12 Mi* 19 44 51.0896621160 -14 43 55.792857576 22.28 19.55 17.57 17.41 15.77 ~ 17 0
68 Gaia DR3 4182257733429587456 s?r 19 44 51.1259679238 -14 57 10.101975772           ~ 1 0
69 2MASS J19445123-1450366 s?r 19 44 51.2425489752 -14 50 36.738599208           ~ 2 0
70 Gaia DR3 4182257836508839936 s?r 19 44 51.2437955084 -14 55 33.964675284           ~ 1 0
71 2MASS J19445127-1452271 s?r 19 44 51.2681886339 -14 52 27.278459332           ~ 2 0
72 Gaia DR3 4182453004115452672 s?r 19 44 51.4427982534 -14 42 19.585998884           ~ 1 0
73 [SRC2012] 296.214722-14.741614 s?r 19 44 51.5175445200 -14 44 29.876128872           ~ 2 0
74 Gaia DR3 4182447300404803712 s?r 19 44 51.6039850993 -14 49 29.871166428           ~ 1 0
75 CW Red 55 s*r 19 44 51.6358235256 -14 48 58.221582912   21.33 19.45 18.32   M/KI 5 0
76 LGGS J194451.78-144616.7 s?r 19 44 51.7766686728 -14 46 17.043175380   21.56 19.84 18.95   ~ 2 0
77 Gaia DR3 4182257840802747264 s?r 19 44 51.8257560127 -14 55 51.895907812           ~ 1 0
78 [M98a] NGC 6822b-938 s?r 19 44 51.9120527454 -14 43 29.138872152   21.65 20.20     ~ 2 0
79 Gaia DR3 4182452209549477888 s?r 19 44 52.0713426080 -14 45 24.508520384           ~ 1 0
80 Gaia DR3 4182445719850121088 s?r 19 44 52.2537460018 -14 53 19.531352364           ~ 1 0
81 [M98a] NGC 6822b-468 s?r 19 44 52.3681326854 -14 45 55.282235360   21.95 20.33     ~ 2 0
82 [M98a] NGC 6822b-482 s?r 19 44 52.8620353861 -14 42 57.198166692   21.44 19.88     ~ 3 0
83 Gaia DR3 4182446093512447872 s?r 19 44 52.9299471282 -14 53 06.938456568           ~ 1 0
84 [M98a] NGC 6822b-1189 s?r 19 44 52.9927436465 -14 47 04.072363896   22.10 20.16     ~ 2 0
85 Gaia DR3 4182449087107781760 s?r 19 44 53.0110874080 -14 47 28.980788196           ~ 1 0
86 LGGS J194453.18-145406.5 s?r 19 44 53.1787467456 -14 54 07.100826444   21.43 19.60 18.62   ~ 3 0
87 Gaia DR3 4182446338325485696 s?r 19 44 53.2627337708 -14 52 00.110522588           ~ 1 0
88 CW Blue 245 s?r 19 44 53.3650504455 -14 50 54.900961320   19.95 19.88     ~ 2 0
89 2MASS J19445336-1445246 s?r 19 44 53.3666478672 -14 45 24.739138152           ~ 3 0
90 CW Red 32 s*r 19 44 53.4546171264 -14 45 52.919048700   20.36 18.43 17.38   M4.5I 5 0
91 CW Red 30 s*r 19 44 53.4582328440 -14 45 40.484634624   20.88 19.14 18.17   K5I 7 0
92 LGGS J194453.66-144617.9 s?r 19 44 53.6564690328 -14 46 18.293520612   21.08 19.05 17.89   ~ 3 0
93 LGGS J194453.68-145245.8 s?r 19 44 53.6799967872 -14 52 46.452162180   21.06 19.25 18.28   ~ 2 0
94 Gaia DR3 4182452690581943680 s?r 19 44 53.6905270454 -14 44 11.509215156           ~ 1 0
95 Gaia DR3 4182446093512432768 s?r 19 44 53.8502384874 -14 53 29.076969724           ~ 1 0
96 CW Red 17 s*r 19 44 53.9514545352 -14 44 24.743092308 22.14 20.20 18.19 17.15   K5I 6 0
97 Gaia DR3 4182446093515784960 s?r 19 44 54.1132603218 -14 52 48.511306644           ~ 1 0
98 2MASS J19445415-1453040 s?r 19 44 54.1594033008 -14 53 04.167946536           ~ 3 0
99 Gaia DR3 4182452694883795328 s?r 19 44 54.2569307224 -14 43 42.153059744           ~ 1 0
100 [K67] V23 s*r 19 44 54.4600983048 -14 48 06.584537880   20.56 19.30 17.35   M1I 11 0
101 [K67] C79 s*r 19 44 54.5381084952 -14 51 27.682568316 21.45 19.30 16.70 15.86   M0I 12 0
102 2MASS J19445470-1452468 s?r 19 44 54.7015739801 -14 52 46.966477244           ~ 2 0
103 [H25] V14 s?r 19 44 54.8076352464 -14 43 48.151173072 19.99 20.29 19.20 16.77 15.47 ~ 12 0
104 LGGS J194454.86-145216.3 s?r 19 44 54.8568843331 -14 52 16.786065960   20.61 18.76 17.7   ~ 3 0
105 [SRC2012] 296.228485-14.848758 s?r 19 44 54.8571044640 -14 50 55.583028528           ~ 2 0
106 LGGS J194455.02-144607.1 s?r 19 44 55.0164939216 -14 46 07.488409440   21.36 19.46 18.47   ~ 2 0
107 [H25] V2 Ce* 19 44 55.1304577246 -14 47 12.054332104   20.09 18.90     ~ 14 0
108 [BSM2001] LB-f1-240 s?r 19 44 55.1925359636 -14 43 45.168350104   21.46 19.81 18.88   ~ 3 0
109 LGGS J194455.37-145229.2 s?r 19 44 55.3771064712 -14 52 29.698945140   21.06 19.27 18.3   ~ 2 0
110 Gaia DR3 4182446510124246016 s?r 19 44 55.4711507377 -14 50 32.412669832           ~ 1 0
111 [K67] V18 s*r 19 44 55.7030105832 -14 51 55.982495700 21.10 19.11 16.91 15.74   M0I 10 0
112 [M98a] NGC 6822b-991 s?r 19 44 55.7719337785 -14 45 30.242111716   21.31 19.52     ~ 5 0
113 LGGS J194455.97-145109.4 s?r 19 44 55.9722803544 -14 51 09.922768092   21.24 19.40 18.39   ~ 2 0
114 2MASS J19445601-1441170 s?r 19 44 56.0091571608 -14 41 17.208769740           ~ 2 0
115 2MASS J19445613-1443208 s?r 19 44 56.1333794520 -14 43 20.991453024           ~ 3 0
116 Gaia DR3 4182257978241708288 s?r 19 44 56.1647479180 -14 54 46.288771884           ~ 1 0
117 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1562 0
118 [M98a] NGC 6822b-1169 s?r 19 44 56.3433520402 -14 43 43.015697728   21.95 20.05     ~ 2 0
119 Gaia DR3 4182446441404686336 s?r 19 44 56.4999992032 -14 51 28.375486836           ~ 1 0
120 Gaia DR3 4182448880952772480 s?r 19 44 56.6572607527 -14 48 03.964593748           ~ 1 0
121 Gaia DR3 4182446132166964480 s?r 19 44 56.6698635757 -14 52 42.515284760           ~ 1 0
122 [M98a] NGC 6822b-628 s?r 19 44 56.7237773181 -14 44 25.523231348   20.06 18.60     ~ 4 0
123 CW Red 54 s*r 19 44 56.8592892958 -14 48 58.891380112   21.05 19.06 18.04 17.03 M/KI 3 0
124 Gaia DR3 4182446127875522944 s?r 19 44 56.9342366462 -14 52 32.176080808           ~ 1 0
125 [K67] V19 s*r 19 44 57.3122956968 -14 49 20.594970300   19.69 17.41 16.20   M1I 14 0
126 LGGS J194457.38-145408.0 s?r 19 44 57.3772176912 -14 54 08.475324372   20.59 18.50 17.39   ~ 4 0
127 2MASS J19445779-1449175 s?r 19 44 57.6944995671 -14 49 17.432397292           ~ 2 0
128 Gaia DR3 4182448021952781184 s?r 19 44 57.7502675032 -14 49 29.014125952           ~ 1 0
129 [M98a] NGC 6822b-670 s?r 19 44 58.0250122912 -14 43 37.282901488   21.85 20.30     ~ 2 0
130 [K67] V31 LP* 19 44 58.1567644896 -14 44 56.426574300   20.38 20.00 17.2   ~ 7 0
131 LGGS J194458.17-144527.8 s?r 19 44 58.1625113808 -14 45 28.126539540   20.06 18.14 17.17   ~ 2 0
132 [M98a] NGC 6822b-682 LP* 19 44 58.2550624376 -14 45 51.099879636   20.51 19.01     ~ 4 0
133 [H25] V15 LP* 19 44 58.3108149840 -14 44 47.302169856 21.34 20.00 19.14 16.71 15.56 ~ 13 0
134 LGGS J194458.45-145458.8 s?r 19 44 58.4475751392 -14 54 59.311164924   21.13 19.55 18.72   ~ 2 0
135 Gaia DR3 4182448880952771584 s?r 19 44 58.4608468195 -14 47 46.766680288           ~ 1 0
136 2MASS J19445850-1451008 s?r 19 44 58.5037443240 -14 51 01.029144240           ~ 2 0
137 Gaia DR3 4182448021959282816 s?r 19 44 58.5456231880 -14 49 33.013999120           ~ 1 0
138 Gaia DR3 4182446475764454016 s?r 19 44 58.5901756022 -14 50 37.216224828           ~ 1 0
139 2MASS J19445860-1501202 s?r 19 44 58.5920386224 -15 01 20.358676452           ~ 2 0
140 Gaia DR3 4182446475764458624 s?r 19 44 58.9827531436 -14 50 29.279160216           ~ 1 0
141 2MASS J19445914-1447241 s*r 19 44 59.1348163272 -14 47 24.243164916   21.30 19.17 18.05   M/KI 3 0
142 Gaia DR3 4182258351904953344 s?r 19 44 59.1963456083 -14 54 04.624028508           ~ 1 0
143 LGGS J194459.22-144955.0 s?r 19 44 59.2157245776 -14 49 55.548654600   21.49 19.76 18.82   ~ 2 0
144 [M98a] NGC 6822b-206 s?r 19 44 59.4016228800 -14 42 17.994341340   20.45 18.53     ~ 4 0
145 LGGS J194459.41-145106.8 s?r 19 44 59.4071439048 -14 51 07.394412960   21.59 19.87 18.93   ~ 2 0
146 Gaia DR3 4182446471473930752 s?r 19 44 59.4269779618 -14 50 15.606584304           ~ 1 0
147 [M98a] NGC 6822b-882 s?r 19 44 59.4944967621 -14 46 09.012515028   21.82 20.26     ~ 2 0
148 [SRC2012] 296.247955-14.916673 s?r 19 44 59.5161445152 -14 55 00.101897976           ~ 2 0
149 [M98a] NGC 6822b-884 s?r 19 44 59.7116848944 -14 46 36.965219376   20.96 19.41     ~ 3 0
150 Gaia DR3 4182446059152713344 s?r 19 44 59.7138437021 -14 53 00.109775796           ~ 1 0
151 [K67] B110 s*r 19 44 59.8544243448 -14 45 15.766834788 20.74 18.93 16.93 15.93   M1I 8 0
152 CW Blue 228 s?r 19 44 59.8641504956 -14 49 15.401394760   20.07 19.87     ~ 2 0
153 Gaia DR3 4182448807936140544 s?r 19 45 00.0606875484 -14 48 13.096692056           ~ 1 0
154 LGGS J194500.10-144901.7 s?r 19 45 00.0969050544 -14 49 02.076189924   21.44 19.78 18.85   ~ 2 0
155 [SRC2012] 296.250610-14.794320 s?r 19 45 00.1552163304 -14 47 39.563223288           ~ 2 0
156 [SRC2012] 296.250885-14.799762 s*r 19 45 00.2373636764 -14 47 59.227322636   21.27 19.20 18.10   M/KI 3 0
157 LGGS J194500.32-144104.8 s?r 19 45 00.3137857440 -14 41 05.079523092   20.23 18.24 17.18   ~ 4 0
158 LGGS J194500.40-145333.3 s?r 19 45 00.3948281664 -14 53 33.864363888   21.56 19.67 18.68   ~ 2 0
159 [SRC2012] 296.251862-14.703141 s?r 19 45 00.4443313824 -14 42 11.378388024           ~ 2 0
160 CW Red 50 s*r 19 45 00.5247829944 -14 48 26.890146900   20.84 18.75 17.52   M/KI 6 0
161 Gaia DR3 4182446162231948032 s?r 19 45 00.8842884015 -14 52 27.945219212           ~ 1 0
162 LGGS J194500.91-145234.3 s?r 19 45 00.9016643040 -14 52 34.841740152   21.23 19.45 18.48   ~ 2 0
163 Gaia DR3 4182258390558595328 s?r 19 45 00.9684715908 -14 53 10.999239892           ~ 1 0
164 Gaia DR3 4182258283185458048 s?r 19 45 01.0895024515 -14 54 51.612610424           ~ 1 0
165 LGGS J194501.12-145437.7 s?r 19 45 01.1144622072 -14 54 38.202530976   20.78 18.97 18   ~ 3 0
166 Gaia DR3 4182258287479309056 s?r 19 45 01.4682715075 -14 54 27.917726460           ~ 1 0
167 2MASS J19450162-1455161 s?r 19 45 01.6241529888 -14 55 16.564574532           ~ 2 0
168 Gaia DR3 4182258390558582144 s?r 19 45 02.0741931933 -14 53 12.750229760           ~ 1 0
169 Gaia DR3 4182446162239619584 s?r 19 45 02.2101484243 -14 52 31.752044336           ~ 1 0
170 Gaia DR3 4182258386264707328 s?r 19 45 02.4650479794 -14 53 21.568211024           ~ 1 0
171 LGGS J194503.58-144337.6 s*r 19 45 03.5729195136 -14 43 37.906824756   21.14 19.23 18.22   M0I 4 0
172 Gaia DR3 4182257630350396800 s?r 19 45 03.7892858431 -14 56 07.140854444           ~ 1 0
173 Gaia DR3 4182258077029720448 s?r 19 45 03.8522506464 -14 55 12.563504604           ~ 1 0
174 Gaia DR3 4182258081324663296 s?r 19 45 04.0343609061 -14 55 02.412891028           ~ 1 0
175 Gaia DR3 4182258077027009152 s?r 19 45 04.2633122012 -14 55 33.975310596           ~ 1 0
176 LGGS J194504.29-145406.2 s?r 19 45 04.2844804224 -14 54 06.691488912   21.36 19.45 18.4   ~ 3 0
177 LGGS J194504.74-145422.8 s?r 19 45 04.7314906296 -14 54 23.291353260   21.56 19.86 18.94   ~ 3 0
178 Gaia DR3 4182449808659521408 s?r 19 45 04.7421380765 -14 43 43.590630468           ~ 1 0
179 Gaia DR3 4182258012605177600 s?r 19 45 05.3661527450 -14 55 37.624995568           ~ 1 0
180 [SRC2012] 296.273560-14.898389 s?r 19 45 05.6505982656 -14 53 54.254267232           ~ 2 0
181 LGGS J194505.74-145547.6 s?r 19 45 05.7362086846 -14 55 48.018573942   20.75 18.86 17.84   ~ 2 0
182 2MASS J19450574-1454580 s?r 19 45 05.7395173968 -14 54 58.122731088           ~ 3 0
183 LGGS J194505.84-145517.3 s?r 19 45 05.8306666080 -14 55 17.747358888   20.7 18.93 17.97   ~ 3 0
184 Gaia DR3 4182258528001286400 s?r 19 45 06.3190804971 -14 52 31.922908752           ~ 1 0
185 LGGS J194506.34-145537.0 s?r 19 45 06.3356757480 -14 55 37.455475908   21.33 19.38 18.34   ~ 3 0
186 LGGS J194506.35-145135.5 s?r 19 45 06.3459074520 -14 51 36.081695124   21.22 19.15 18.01   ~ 3 0
187 Gaia DR3 4182448090672138752 s?r 19 45 06.3596739269 -14 49 12.763048952           ~ 1 0
188 2MASS J19450697-1450315 s*r 19 45 06.9745904160 -14 50 31.673974488   21.06 19.12 18.06   M/KI 4 0
189 LGGS J194507.48-145107.1 s?r 19 45 07.4671295328 -14 51 07.648149276   21.55 19.67 18.67   ~ 3 0
190 LGGS J194507.87-145435.9 s?r 19 45 07.8679193400 -14 54 36.371156724   21.63 19.82 18.88   ~ 3 0
191 2MASS J19450820-1455170 s?r 19 45 08.2091731248 -14 55 17.020512156           ~ 3 0
192 Gaia DR3 4182258424918234112 s?r 19 45 08.2884514326 -14 53 37.541221364           ~ 1 0
193 Gaia DR3 4182258042667417088 s?r 19 45 08.3394392626 -14 55 21.129952028           ~ 1 0
194 Gaia DR3 4182258214466000896 s?r 19 45 08.7300397403 -14 54 00.879152852           ~ 1 0
195 [K67] V26 s?r 19 45 09.5448474840 -14 53 45.061709424   20.71 20.20 17.85   ~ 5 0
196 Gaia DR3 4182476295723168000 s?r 19 45 09.9532237051 -14 41 40.300087444           ~ 1 0
197 Gaia DR3 4182260035532185344 s?r 19 45 10.4358754155 -14 51 17.183161912           ~ 1 0
198 Gaia DR3 4182258214465988992 s?r 19 45 10.6675113550 -14 54 26.322520372           ~ 1 0
199 Gaia DR3 4182447811499506304 s?r 19 45 10.6827554280 -14 50 03.472400772           ~ 1 0
200 Gaia DR3 4182258214465998976 s?r 19 45 10.8647378961 -14 54 01.987539700           ~ 1 0
201 Gaia DR3 4182258214466007168 s?r 19 45 11.0402497956 -14 53 51.649663504           ~ 1 0
202 Gaia DR3 4182259932452952320 s?r 19 45 11.7343332029 -14 52 30.669129368           ~ 1 0
203 Gaia DR3 4182257291046720128 s?r 19 45 11.9303341540 -14 56 13.941405004           ~ 1 0
204 Gaia DR3 4182258248825756800 s?r 19 45 11.9672620430 -14 53 17.607581900           ~ 1 0
205 Gaia DR3 4182257286753014656 s?r 19 45 12.2208048514 -14 55 56.769417912           ~ 1 0
206 [M98a] NGC 6822c-237 s?r 19 45 12.3848202257 -14 47 37.691129836   21.81 20.14     ~ 2 0
207 Gaia DR3 4182259936746748032 s?r 19 45 13.0895987122 -14 52 00.525711656           ~ 1 0
208 [SRC2012] 296.304688-14.916121 s?r 19 45 13.1482602024 -14 54 58.116303180           ~ 2 0
209 2MASS J19451321-1458439 s?r 19 45 13.2109770170 -14 58 43.987367240           ~ 2 0
210 Gaia DR3 4182256599558188032 s?r 19 45 13.5866645273 -14 58 25.297861244           ~ 1 0
211 Gaia DR3 4182256603851858688 s?r 19 45 13.7526247826 -14 58 17.630220740           ~ 1 0
212 Gaia DR3 4182258180106258816 s?r 19 45 14.0873461601 -14 54 07.930177412           ~ 1 0
213 Gaia DR3 4182259971106504704 s?r 19 45 14.4252904567 -14 51 25.127926396           ~ 1 0
214 [BRC2005] V062 s?r 19 45 15.0888071256 -14 48 04.258217052   21.02 19.26 18.48   ~ 3 0
215 [SRC2012] 296.318024-14.877886 s?r 19 45 16.3255535136 -14 52 40.460986380           ~ 2 0
216 [BRC2005] V146 s?r 19 45 16.5493248639 -14 46 48.861918512   20.85 19.12     ~ 3 0
217 Gaia DR3 4182257389832247296 s?r 19 45 17.4388004896 -14 55 17.582576944           ~ 1 0
218 Gaia DR3 4182257011875084288 s?r 19 45 17.4707246891 -14 56 52.790970776           ~ 1 0
219 Gaia DR3 4182259764952709120 s?r 19 45 18.2806493696 -14 52 33.964224536           ~ 1 0
220 [M98a] NGC 6822c-337 s?r 19 45 20.0431610976 -14 45 45.273145752   21.40 19.89     ~ 3 0
221 2MASS J19452016-1455134 s?r 19 45 20.1699985128 -14 55 13.438504128           ~ 2 0
222 2MASS J19452123-1459050 s?r 19 45 21.2296280347 -14 59 05.085307224           ~ 2 0
223 Gaia DR3 4182257149317533568 s?r 19 45 21.6137544544 -14 55 42.684977132           ~ 1 0
224 [M98a] NGC 6822c-369 s?r 19 45 22.6320850089 -14 47 28.751998920   21.76 20.42     ~ 2 0
225 2MASS J19452371-1456102 s?r 19 45 23.7154243896 -14 56 10.259074428           ~ 2 0
226 Gaia DR3 4182259073459490176 s?r 19 45 27.1206681134 -14 52 35.693781552           ~ 1 0
227 Gaia DR3 4182254125657059200 s?r 19 45 27.7848190776 -14 56 59.718231252           ~ 1 0
228 Gaia DR3 4182471867610944512 s?r 19 45 27.8798627087 -14 47 04.386831244           ~ 1 0
229 Gaia DR3 4182254125659905920 s?r 19 45 28.6173778943 -14 57 07.750772620           ~ 1 0
230 Gaia DR3 4182260413489328512 s?r 19 45 30.4564969010 -14 49 00.752298640           ~ 1 0
231 Gaia DR3 4182472073769471232 s?r 19 45 30.5933699793 -14 44 39.355550708           ~ 1 0
232 [SRC2012] 296.379425-14.845737 s?r 19 45 31.0641004728 -14 50 44.737358172           ~ 2 0
233 Gaia DR3 4182260344769843328 s?r 19 45 31.2984588443 -14 50 05.240566192           ~ 1 0
234 2MASS J19453325-1446230 s?r 19 45 33.2446851312 -14 46 22.825781184           ~ 2 0
235 Gaia DR3 4182253747699887488 s?r 19 45 33.6400017111 -14 59 05.538697996           ~ 1 0
236 [SRC2012] 296.421875-14.923561 s?r 19 45 41.2799741064 -14 55 24.906482292           ~ 2 0
237 2MASS J19454354-1449344 s?r 19 45 43.5420888096 -14 49 34.500512424           ~ 2 0
238 Gaia DR3 4182255504345130880 s?r 19 45 44.2365069850 -14 55 53.413663516           ~ 1 0
239 2MASS J19454971-1431046 s?r 19 45 49.7018123928 -14 31 04.598953572           ~ 2 0
240 NAME Local Group GrG ~ ~           ~ 8378 0

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