2004MNRAS.351...31H

Query : 2004MNRAS.351...31H

2004MNRAS.351...31H - Mon. Not. R. Astron. Soc., 351, 31-56 (2004/June-2)

X-ray source populations in the Galactic plane.

HANDS A.D.P., WARWICK R.S., WATSON M.G. and HELFAND D.J.

Abstract (from CDS):

We present the first results from the XMM-Newton Galactic Plane Survey (XGPS). In the first phase of the programme, 22 pointings were used to cover a region of approximately 3 deg2 between 19° and 22° in Galactic longitude and ±0.6° in latitude. In total we have resolved over 400 point X-ray sources, at ≥ 5σ significance, down to a flux limit of ∼2 x10–14 erg/s/cm2 (2-10 keV). The sources exhibit a very wide range of spectral hardness, with interstellar absorption identified as a major influence. The source populations detected in the soft (0.4-2 keV) band and hard (2-6 keV) band show surprisingly little overlap. The majority of the soft sources appear to be associated with relatively nearby stars with active stellar coronae, judging from their high coincidence with bright stellar counterparts.

The combination of the XGPS measurements in the hard X-ray band with the results from earlier surveys carried out by ASCA and Chandra reveals the form of the low-latitude X-ray source counts over 4 decades of flux. It appears that extragalactic sources dominate below ∼10–13 erg/s/cm2 (2-10 keV), with a predominantly Galactic source population present above this flux threshold. The nature of the faint Galactic population observed by XMM-Newton remains uncertain, although cataclysmic variables and RS CVn systems may contribute substantially. XMM-Newton observes an enhanced surface brightness in the Galactic plane in the 2-6 keV band associated with Galactic ridge X-ray emission (GRXE). The integrated contribution of Galactic sources plus the breakthrough of extragalactic signal accounts for up to 20 per cent of the observed surface brightness. The XGPS results are consistent with the picture suggested from a deep Chandra observation in the Galactic plane, namely that the bulk of the GRXE is truly diffuse.


Abstract Copyright: 2004 RAS

Journal keyword(s): surveys - Galaxy: general - X-rays: general

VizieR on-line data: <Available at CDS (J/MNRAS/351/31): tablea1.dat>

Nomenclature: Table A1: XGPS-I JHHMMSS+DDMMSS N=424.

Simbad objects: 426

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Number of rows : 426
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 CORNISH G019.2356+00.4951 PN? 18 24 17.02896 -11 56 00.5352           ~ 4 0
2 USNO-A2.0 0750-13092026 * 18 24 26.6550607344 -11 59 16.886108652           ~ 1 0
3 XGPS-I J182436-115127 X 18 24 36.20 -11 51 27.5           ~ 1 0
4 XGPS-I J182441-115903 X 18 24 41.19 -11 59 03.5           ~ 1 0
5 BD-12 5039 * 18 24 46.4220691992 -12 04 25.984042716 12.08 11.8 10.6     O6 19 1
6 XGPS-I J182448-114454 X 18 24 48.58 -11 44 54.2           ~ 1 0
7 USNO-A2.0 0750-13113393 X 18 25 02.29 -11 43 20.8           ~ 1 0
8 XGPS-I J182506-114819 X 18 25 06.78 -11 48 19.1           ~ 1 0
9 UCAC2 27529216 * 18 25 06.9140456760 -12 04 30.468143928       13.43 12.71 K0 2 1
10 TYC 5698-4833-1 * 18 25 11.5876109832 -11 57 25.824654576   12.36 11.96   11.42 A9 3 1
11 XGPS-I J182514-121859 X 18 25 14.46 -12 18 59.4           ~ 1 0
12 XGPS-I J182517-114350 X 18 25 17.24 -11 43 50.1           ~ 1 0
13 XGPS-I J182521-113533 X 18 25 21.10 -11 35 33.9           ~ 1 0
14 XGPS-I J182524-114525 X 18 25 24.48 -11 45 25.1           ~ 2 0
15 USNO-A2.0 0750-13130699 X 18 25 30.97 -11 56 10.0           ~ 1 0
16 XGPS-I J182531-114340 X 18 25 31.58 -11 43 40.3           ~ 1 0
17 XGPS-I J182532-122055 X 18 25 32.66 -12 20 55.0           ~ 1 0
18 USNO-A2.0 0750-13132239 X 18 25 33.33 -12 16 49.3           ~ 1 0
19 XGPS-I J182533-121556 X 18 25 33.52 -12 15 56.5           ~ 1 0
20 UCAC2 27529453 * 18 25 33.6895921944 -12 14 50.661614724       13.13 12.29 ~ 2 1
21 XGPS-I J182535-121558 X 18 25 35.40 -12 15 58.2           ~ 1 0
22 XGPS-I J182537-120645 X 18 25 37.97 -12 06 45.2           ~ 1 0
23 XGPS-I J182544-113153 X 18 25 44.0629655712 -11 31 54.348652056           ~ 1 0
24 XGPS-I J182544-121303 X 18 25 44.20 -12 13 03.0           ~ 1 0
25 XGPS-I J182549-121823 X 18 25 49.81 -12 18 23.4           ~ 1 0
26 XGPS-I J182550-114837 X 18 25 50.51 -11 48 37.6           ~ 1 0
27 XGPS-I J182553-112519 X 18 25 53.3442765960 -11 25 18.051028716           ~ 1 0
28 USNO-A2.0 0750-13145056 X 18 25 53.86 -11 27 13.0           ~ 2 0
29 XGPS-I J182558-120414 X 18 25 58.37 -12 04 14.2           ~ 1 0
30 XGPS-I J182559-114710 X 18 25 59.88 -11 47 10.5           ~ 1 0
31 XGPS-I J182601-110904 X 18 26 01.19 -11 09 04.2           ~ 1 0
32 2MASS J18260167-1220208 * 18 26 01.6748126448 -12 20 20.727269736           ~ 2 1
33 USNO-A2.0 0750-13151482 X 18 26 03.04 -12 19 52.8           ~ 1 0
34 USNO-A2.0 0750-13151668 X 18 26 03.23 -12 09 33.7           ~ 1 0
35 USNO-A2.0 0750-13152275 X 18 26 03.8266868184 -12 06 39.942672768           ~ 1 0
36 XGPS-I J182604-114719 X 18 26 04.00 -11 47 19.1           ~ 1 0
37 XGPS-I J182605-111626 X 18 26 05.18 -11 16 26.8           ~ 1 0
38 XGPS-I J182606-111553 X 18 26 06.36 -11 15 53.3           ~ 1 0
39 XGPS-I J182607-111204 X 18 26 07.10 -11 12 04.8           ~ 1 0
40 USNO-A2.0 0750-13154481 * 18 26 07.1895812160 -12 06 25.353723384           A8 2 0
41 XGPS-I J182608-114317 X 18 26 08.06 -11 43 17.8           ~ 1 0
42 UCAC2 27529798 * 18 26 08.0747658552 -12 15 14.523418728       13.87   ~ 2 1
43 XGPS-I J182608-112553 X 18 26 08.2699924632 -11 25 54.328859004           ~ 1 0
44 XGPS-I J182608-115614 X 18 26 08.56 -11 56 14.6           ~ 1 0
45 XGPS-I J182609-120659 X 18 26 09.36 -12 06 59.8           ~ 1 0
46 XGPS-I J182609-114319 X 18 26 09.38 -11 43 19.3           ~ 1 0
47 XGPS-I J182614-110616 X 18 26 14.55 -11 06 16.3           ~ 1 0
48 USNO-B1.0 0789-00404378 X 18 26 14.69 -11 05 49.6   21.2   19.41   ~ 2 0
49 XGPS-I J182615-122429 X 18 26 15.03 -12 24 29.9           ~ 1 0
50 XGPS-I J182617-112930 X 18 26 17.74 -11 29 30.0           ~ 1 0
51 XGPS-I J182621-105608 X 18 26 21.66 -10 56 08.3           ~ 1 0
52 XGPS-I J182622-122409 X 18 26 22.23 -12 24 09.9           ~ 1 0
53 XGPS-I J182622-110344 X 18 26 22.71 -11 03 44.2           ~ 1 0
54 XGPS-I J182625-113422 X 18 26 25.05 -11 34 22.7           ~ 1 0
55 XGPS-I J182625-105918 X 18 26 25.68 -10 59 18.5           ~ 1 0
56 XGPS-I J182625-112854 X 18 26 25.73 -11 28 54.0           ~ 2 0
57 XGPS-I J182628-112224 X 18 26 28.22 -11 22 24.8           ~ 1 0
58 USNO-A2.0 0750-13170745 * 18 26 28.66 -12 09 22.5       13.70   K0 2 0
59 USNO-A2.0 0750-13170977 X 18 26 28.85 -10 57 54.8           ~ 1 0
60 USNO-A2.0 0750-13171480 * 18 26 29.4694590504 -11 00 58.825257588           ~ 2 1
61 USNO-A2.0 0750-13171638 * 18 26 29.6567127096 -11 45 39.838915152           ~ 1 0
62 XGPS-I J182631-114537 X 18 26 31.49 -11 45 37.4           ~ 1 0
63 XGPS-I J182633-111142 X 18 26 33.0768227568 -11 11 41.116786440           ~ 1 0
64 XGPS-I J182634-111208 X 18 26 34.71 -11 12 08.3           ~ 1 0
65 DENIS J182635.4-115607 * 18 26 35.4571385928 -11 56 07.385905536         15.47 ~ 1 0
66 UCAC2 27711298 * 18 26 35.9915015592 -11 46 46.746656796       13.20 11.83 ~ 2 1
67 XGPS-I J182636-105714 X 18 26 36.60 -10 57 14.4           ~ 1 0
68 XGPS-I J182637-121234 X 18 26 37.20 -12 12 34.9           ~ 1 0
69 USNO-A2.0 0750-13177676 X 18 26 37.31 -11 55 22.9           ~ 1 0
70 USNO-A2.0 0750-13179391 * 18 26 38.3217458976 -10 43 41.747904588           ~ 2 1
71 SSTGLMC G020.3240+00.4160 X 18 26 38.56 -11 00 29.1           ~ 1 0
72 UCAC2 27711329 * 18 26 39.563 -11 42 15.08       13.74 12.67 M2e 2 1
73 XGPS-I J182641-115827 X 18 26 41.29 -11 58 27.0           ~ 1 0
74 HD 169754 V* 18 26 42.6536643144 -11 21 24.830998092 9.61 9.64 8.60 7.63 6.86 B0.5Ia 52 1
75 IRAS 18239-1144 IR 18 26 43.32 -11 42 30.1           ~ 1 0
76 SSTGLMC G019.6393+00.0321 X 18 26 43.63 -11 47 34.1           ~ 1 0
77 XGPS-I J182645-111507 X 18 26 45.05 -11 15 07.7           ~ 1 0
78 USNO-A2.0 0750-13184310 X 18 26 46.16 -11 40 34.1           ~ 1 0
79 XGPS-I J182649-114903 X 18 26 49.68 -11 49 03.8           ~ 1 0
80 XGPS-I J182650-112640 X 18 26 50.51 -11 26 40.6           ~ 1 0
81 SSTGLMC G020.3013+00.3448 X 18 26 51.38 -11 03 41.1           ~ 1 0
82 XGPS-I J182653-110352 X 18 26 53.35 -11 03 52.1           ~ 1 0
83 XGPS-I J182653-105529 X 18 26 53.88 -10 55 29.4           ~ 1 0
84 XGPS-I J182655-114524 X 18 26 55.10 -11 45 24.4           ~ 1 0
85 XGPS-I J182655-105038 X 18 26 55.39 -10 50 38.2           ~ 1 0
86 XGPS-I J182655-114244 X 18 26 55.80 -11 42 44.2           ~ 1 0
87 USNO-A2.0 0750-13192255 X 18 26 56.54 -11 40 11.8           ~ 1 0
88 2MASS J18265832-1132585 Ae* 18 26 58.3265745336 -11 32 58.436786868           A0V 2 0
89 USNO-A2.0 0750-13193888 X 18 26 58.53 -11 55 44.0           ~ 1 0
90 XGPS-I J182659-110936 X 18 26 59.18 -11 09 36.0           ~ 1 0
91 XGPS-I J182659-115312 X 18 26 59.20 -11 53 12.0           ~ 1 0
92 XGPS-I J182701-114628 X 18 27 01.62 -11 46 28.0           ~ 1 0
93 USNO-B1.0 0783-00443340 * 18 27 03.7769178624 -11 37 13.472401008       15.49   G9 4 0
94 USNO-A2.0 0750-13198612 X 18 27 05.23 -10 43 02.6           ~ 1 0
95 XGPS-I J182705-120453 X 18 27 05.38 -12 04 53.4           ~ 1 0
96 2MASS J18270617-1124385 * 18 27 06.1772806032 -11 24 38.545796952   19.0   16.8   ~ 4 0
97 XGPS-I J182708-113459 X 18 27 08.288 -11 34 56.73           ~ 2 1
98 XGPS-I J182709-105318 X 18 27 09.48 -10 53 18.5           ~ 1 0
99 XGPS-I J182711-105743 X 18 27 11.10 -10 57 43.2           ~ 1 0
100 XGPS-I J182711-112550 X 18 27 11.36 -11 25 50.0           ~ 1 0
101 USNO-A2.0 0750-13204022 X 18 27 11.766 -11 28 05.89           ~ 2 0
102 USNO-A2.0 0750-13204067 X 18 27 12.07 -10 28 32.9           ~ 1 0
103 USNO-A2.0 0750-13206027 X 18 27 14.648 -11 30 27.37         14.19 ~ 2 1
104 USNO-B1.0 0786-00413390 * 18 27 14.8664034960 -11 18 18.938821140           M6V 2 0
105 USNO-A2.0 0750-13207576 X 18 27 16.88 -11 48 32.2           ~ 1 0
106 USNO-A2.0 0750-13208642 X 18 27 18.0174384096 -11 28 21.789534108         14.79 ~ 2 1
107 XGPS-I J182721-104715 X 18 27 21.45 -10 47 15.1           ~ 1 0
108 XGPS-I J182721-120730 X 18 27 21.71 -12 07 30.2           ~ 1 0
109 USNO-A2.0 0750-13211445 X 18 27 21.94 -10 43 55.5           ~ 1 0
110 USNO-A2.0 0750-13211722 X 18 27 22.07 -11 11 49.7           ~ 1 0
111 XGPS-I J182722-105656 X 18 27 22.85 -10 56 56.2           ~ 1 0
112 XGPS-I J182723-110910 X 18 27 23.8154398248 -11 09 11.504662956           ~ 1 0
113 XGPS-I J182726-121304 X 18 27 26.28 -12 13 04.8           ~ 1 0
114 XGPS-I J182726-120641 X 18 27 26.35 -12 06 41.1           ~ 1 0
115 ATO J276.8614-11.3444 EB? 18 27 26.7439208952 -11 20 39.894380052       14.71 13.51 G2V 4 1
116 XGPS-I J182726-101550 X 18 27 26.88 -10 15 50.5           ~ 1 0
117 XGPS-I J182727-122036 X 18 27 27.10 -12 20 36.5           ~ 1 0
118 2MASS J18272771-1128513 * 18 27 27.7149432048 -11 28 51.209054040           ~ 1 0
119 UCAC2 27711789 * 18 27 28.5690858792 -11 37 40.002209868       14.74 12.96 G3V 3 1
120 UCAC2 27711808 * 18 27 30.2720249784 -11 35 11.620671792       12.25 11.63 A2V 3 1
121 USNO-A2.0 0750-13219420 * 18 27 31.7836506048 -10 51 23.429632068           ~ 1 0
122 USNO-B1.0 0784-00428444 X 18 27 32.2331599920 -11 33 57.147852960           ~ 3 1
123 XGPS-I J182733-120734 X 18 27 33.35 -12 07 34.5           ~ 1 0
124 XGPS-I J182734-120645 X 18 27 34.25 -12 06 45.7           ~ 1 0
125 2XMM J182734.2-112303 * 18 27 34.320 -11 23 04.51           M5V 2 0
126 XGPS-I J182735-121059 X 18 27 35.62 -12 10 59.9           ~ 1 0
127 XGPS-I J182736-105340 X 18 27 36.5137785048 -10 53 39.356525832           ~ 1 0
128 XGPS-I J182737-111338 X 18 27 37.25 -11 13 38.6           ~ 1 0
129 XGPS-I J182738-105328 X 18 27 38.52 -10 53 28.8           ~ 1 0
130 USNO-A2.0 0750-13225258 X 18 27 38.64 -10 43 59.0           ~ 1 0
131 USNO-A2.0 0750-13226146 * 18 27 40.0998741672 -10 28 12.491872608       13.65   M1e 2 1
132 USNO-A2.0 0750-13226450 * 18 27 40.4043772488 -11 39 52.997032764       17.05   M5V 3 1
133 XGPS-I J182740-120327 X 18 27 40.66 -12 03 27.3           ~ 1 0
134 XGPS-I J182740-120553 X 18 27 40.97 -12 05 53.4           ~ 1 0
135 XGPS-I J182741-121344 X 18 27 41.04 -12 13 44.7           ~ 1 0
136 UCAC3 158-184461 * 18 27 41.1879844872 -11 27 15.753793356       16.01 14.31 ~ 2 1
137 XGPS-I J182742-115731 X 18 27 42.57 -11 57 31.1           ~ 1 0
138 UCAC3 157-198325 * 18 27 44.6595907512 -11 39 57.573322056       12.16 10.80 G8III 3 1
139 3XMM J182746.3-120605 HX? 18 27 46.3195998960 -12 06 06.255317232       21.60   Be 3 0
140 XGPS-I J182746-110255 X 18 27 46.33 -11 02 55.1           ~ 2 0
141 USNO-A2.0 0750-13231392 * 18 27 46.7949926832 -10 31 49.227800700           ~ 1 0
142 USNO-A2.0 0750-13232314 X 18 27 48.02 -11 56 25.2           ~ 1 0
143 XGPS-I J182748-112130 X 18 27 48.98 -11 21 30.2           ~ 1 0
144 XGPS-I J182749-105322 X 18 27 49.17 -10 53 22.4           ~ 1 0
145 XGPS-I J182749-113725 X 18 27 49.446 -11 37 26.49         17.12 ~ 3 1
146 USNO-A2.0 0750-13233572 X 18 27 49.5838731744 -10 25 35.912874936       12.83 11.57 ~ 2 1
147 XGPS-I J182749-113341 X 18 27 49.99 -11 33 41.8           ~ 1 0
148 XGPS-I J182750-110408 X 18 27 50.74 -11 04 08.2           ~ 1 0
149 XGPS-I J182750-113547 X 18 27 50.99 -11 35 47.5           ~ 2 0
150 XGPS-I J182752-105149 X 18 27 52.54 -10 51 49.6           ~ 1 0
151 XGPS-I J182755-114958 X 18 27 55.70 -11 49 58.9           ~ 1 0
152 XGPS-I J182755-120346 X 18 27 55.75 -12 03 46.3           ~ 1 0
153 USNO-A2.0 0750-13238574 X 18 27 56.14 -10 51 24.4           ~ 1 0
154 XGPS-I J182756-110450 X 18 27 56.84 -11 04 50.9           ~ 2 0
155 XGPS-I J182757-110542 X 18 27 57.24 -11 05 42.7           ~ 1 0
156 BD-12 5057 * 18 27 58.0346343432 -12 09 40.575370824   11.45 10.36 9.40   G5 3 0
157 XGPS-I J182800-121501 X 18 28 00.47 -12 15 01.1           ~ 1 0
158 USNO-A2.0 0750-13244399 * 18 28 03.7586143416 -12 16 39.807856020           ~ 1 0
159 XGPS-I J182804-113337 X 18 28 04.91 -11 33 37.1           ~ 1 0
160 USNO-A2.0 0750-13245254 X 18 28 05.26 -11 38 30.4           ~ 2 1
161 SSTGLMC G019.9429-00.1878 X 18 28 05.97 -11 37 35.5           ~ 2 1
162 XGPS-I J182806-103419 X 18 28 06.07 -10 34 19.6           ~ 1 0
163 SSTGLMC G020.5043+00.0974 X 18 28 08.03 -10 59 48.4           ~ 1 0
164 XGPS-I J182808-112711 X 18 28 08.49 -11 27 11.2           ~ 1 0
165 USNO-A2.0 0750-13248381 X 18 28 09.16 -10 44 23.6           ~ 1 0
166 XGPS-I J182810-114933 X 18 28 10.50 -11 49 33.8           ~ 2 1
167 USNO-A2.0 0750-13249762 X 18 28 11.38 -11 41 47.6           ~ 2 1
168 USNO-A2.0 0750-13249956 X 18 28 11.58 -12 12 20.5           ~ 1 0
169 XGPS-I J182811-110435 * 18 28 11.63 -11 04 35.1           M2V 2 0
170 ATO J277.0492-10.4284 WR* 18 28 11.7992769216 -10 25 42.325644468           WC9+OBI 5 1
171 XGPS-I J182812-115031 X 18 28 12.51 -11 50 31.0           ~ 1 0
172 XGPS-I J182813-102859 X 18 28 13.49 -10 28 59.7           ~ 1 0
173 XGPS-I J182813-102035 X 18 28 13.57 -10 20 35.4           ~ 1 0
174 XGPS-I J182813-120730 X 18 28 13.59 -12 07 30.1           ~ 1 0
175 2XMM J182813.6-110112 X 18 28 13.750 -11 01 11.33           ~ 2 0
176 USNO-A2.0 0750-13251657 * 18 28 13.8830638896 -10 38 09.367034712       15.91   M4e 2 0
177 XGPS-I J182814-103728 HX? 18 28 14.30 -10 37 28.8       20.30   ~ 3 0
178 XGPS-I J182814-104859 X 18 28 14.82 -10 48 59.3           ~ 1 0
179 XGPS-I J182815-115432 X 18 28 15.8950630176 -11 54 33.383050884         13.53 ~ 2 1
180 XGPS-I J182816-103823 X 18 28 16.15 -10 38 23.8           ~ 1 0
181 XGPS-I J182816-111132 X 18 28 16.28 -11 11 32.9           ~ 1 0
182 XGPS-I J182816-115518 X 18 28 16.36 -11 55 18.4           ~ 1 0
183 XGPS-I J182816-105007 X 18 28 16.93 -10 50 07.4           ~ 1 0
184 XGPS-I J182817-103109 X 18 28 17.98 -10 31 09.9           ~ 1 0
185 UCAC2 28237255 * 18 28 19.1496094680 -10 02 07.463352768       12.68 9.87 ~ 2 1
186 XGPS-I J182820-114752 X 18 28 20.65 -11 47 52.9           ~ 2 1
187 XGPS-I J182821-104245 X 18 28 21.07 -10 42 45.3           ~ 1 0
188 XGPS-I J182821-104202 X 18 28 21.86 -10 42 02.5           ~ 1 0
189 2MASS J18282189-1011279 Y*? 18 28 21.8981467632 -10 11 27.907607580   11.71 10.90 10.59 9.87 ~ 3 1
190 2MASS J18282256-1149293 * 18 28 22.5767785440 -11 49 29.031534876           ~ 1 0
191 XGPS-I J182822-114724 X 18 28 22.78 -11 47 24.0           ~ 1 0
192 XGPS-I J182823-114157 X 18 28 23.43 -11 41 57.4           ~ 2 0
193 XGPS-I J182823-105107 X 18 28 23.71 -10 51 07.7           ~ 1 0
194 XGPS-I J182824-121006 X 18 28 24.17 -12 10 06.5           ~ 1 0
195 XGPS-I J182824-120833 X 18 28 24.47 -12 08 33.0           ~ 1 0
196 USNO-A2.0 0750-13259803 X 18 28 25.091 -11 27 19.19           ~ 2 0
197 XGPS-I J182827-104131 X 18 28 27.07 -10 41 31.6           ~ 1 0
198 USNO-A2.0 0750-13261369 X 18 28 27.44 -11 38 18.0           ~ 1 0
199 XGPS-I J182827-100245 X 18 28 27.44 -10 02 45.5           ~ 1 0
200 2MASS J18282760-1117485 * 18 28 27.5987464968 -11 17 48.593060880           ~ 3 0
201 XGPS-I J182827-104454 X 18 28 27.73 -10 44 54.0           ~ 1 0
202 3XMM J182828.0-102401 * 18 28 28.1243831544 -10 24 02.059972848       14.78   B3 3 0
203 XGPS-I J182828-103741 X 18 28 28.77 -10 37 41.5           ~ 1 0
204 XGPS-I J182829-121406 X 18 28 29.49 -12 14 06.4           ~ 1 0
205 XGPS-I J182830-114516 X 18 28 30.05 -11 45 16.8           ~ 2 0
206 XGPS-I J182831-100332 X 18 28 31.01 -10 03 32.8           ~ 1 0
207 2MASS J18283155-1031246 X 18 28 31.55 -10 31 24.6           ~ 1 0
208 UCAC3 157-199032 * 18 28 31.6571466216 -11 51 46.544277528       16.37 14.15 ~ 2 1
209 XGPS-I J182831-104108 X 18 28 31.71 -10 41 08.1           ~ 1 0
210 XGPS-I J182831-095805 X 18 28 31.91 -09 58 05.9           ~ 1 0
211 2MASS J18283337-1026505 X 18 28 33.3684288072 -10 26 50.486420580   20.0   16.3 14.25 ~ 3 0
212 XGPS-I J182833-103823 X 18 28 33.60 -10 38 23.0           ~ 1 0
213 2XMM J182833.7-103700 LXB 18 28 33.7753501392 -10 37 03.710934228           ~ 35 0
214 XGPS-I J182835-105951 X 18 28 35.80 -10 59 51.3           ~ 1 0
215 USNO-A2.0 0750-13267401 * 18 28 36.3925785216 -10 36 55.459770012         14.44 ~ 2 1
216 XGPS-I J182836-100207 X 18 28 36.92 -10 02 07.1           ~ 1 0
217 XGPS-I J182836-103603 X 18 28 36.97 -10 36 03.8           ~ 1 0
218 USNO-A2.0 0750-13269349 X 18 28 39.26 -11 16 30.0           ~ 1 0
219 XGPS-I J182839-115324 X 18 28 39.70 -11 53 24.2           ~ 1 0
220 XGPS-I J182841-102931 X 18 28 41.50 -10 29 31.7           ~ 1 0
221 XGPS-I J182842-104219 X 18 28 42.26 -10 42 19.3           ~ 1 0
222 USNO-A2.0 0750-13272302 X 18 28 43.54 -10 18 49.9           ~ 1 0
223 XGPS-I J182844-105428 X 18 28 44.38 -10 54 28.1           ~ 2 0
224 UCAC2 27712491 * 18 28 45.3560599104 -11 56 52.785808116       13.28 12.44 ~ 2 1
225 UCAC2 27886549 PM* 18 28 45.4591501560 -11 17 11.277301956       11.71 10.84 M1e 4 1
226 XGPS-I J182845-101000 X 18 28 45.86 -10 10 00.9           ~ 1 0
227 SSTGLMC G021.3684+00.3705 X 18 28 47.03 -10 06 17.2           ~ 1 0
228 USNO-A2.0 0750-13274575 X 18 28 47.6169221808 -11 55 52.821911496       16.49 13.97 ~ 2 1
229 HD 170248 PM* 18 28 47.7161167176 -10 13 35.523625620   9.18 8.59 8.60   G3/5V 31 1
230 XGPS-I J182848-104942 X 18 28 48.30 -10 49 42.5           ~ 1 0
231 XGPS-I J182849-104344 X 18 28 49.12 -10 43 44.4           ~ 1 0
232 USNO-A2.0 0750-13277273 X 18 28 50.00 -11 46 08.0           ~ 1 0
233 XGPS-I J182850-104649 X 18 28 50.77 -10 46 49.5           ~ 1 0
234 XGPS-I J182851-101313 X 18 28 51.04 -10 13 13.4           ~ 1 0
235 XGPS-I J182851-103535 X 18 28 51.05 -10 35 35.1           ~ 1 0
236 XGPS-I J182851-105539 X 18 28 51.15 -10 55 39.6           ~ 2 0
237 XGPS-I J182851-101730 X 18 28 51.22 -10 17 30.4           ~ 1 0
238 USNO-A2.0 0750-13278214 X 18 28 51.63 -10 30 47.1           ~ 1 0
239 F3R 673 LX? 18 28 54.6138611496 -11 26 56.378732316   17.3   15.87 15.73 ~ 3 0
240 XGPS-I J182854-105017 X 18 28 54.72 -10 50 17.8           ~ 1 0
241 XGPS-I J182855-104003 X 18 28 55.49 -10 40 03.6           ~ 1 0
242 XGPS-I J182855-111148 X 18 28 55.74 -11 11 48.7           ~ 1 0
243 XGPS-I J182856-095413 X 18 28 56.04 -09 54 13.5           ~ 3 0
244 XGPS-I J182856-101702 X 18 28 56.31 -10 17 02.2           ~ 1 0
245 XGPS-I J182856-100401 X 18 28 56.61 -10 04 01.2           ~ 1 0
246 USNO-A2.0 0750-13282507 X 18 28 57.85 -10 35 02.1           ~ 1 0
247 XGPS-I J182858-100002 X 18 28 58.17 -10 00 02.7           ~ 1 0
248 XGPS-I J182858-113600 X 18 28 58.36 -11 36 00.2           ~ 1 0
249 XGPS-I J182858-104511 X 18 28 58.59 -10 45 11.7           ~ 1 0
250 2MASS J18285863-1039085 X 18 28 58.63 -10 39 08.5         14.12 ~ 2 1
251 XGPS-I J182858-095921 X 18 28 58.70 -09 59 21.6           ~ 1 0
252 XGPS-I J182859-100043 X 18 28 59.49 -10 00 43.8           ~ 1 0
253 XGPS-I J182900-111001 X 18 29 00.38 -11 10 01.9           ~ 1 0
254 XGPS-I J182900-100658 X 18 29 00.58 -10 06 58.2           ~ 1 0
255 XGPS-I J182901-103925 X 18 29 01.42 -10 39 25.4           ~ 1 0
256 XGPS-I J182901-101448 X 18 29 01.90 -10 14 48.8           ~ 1 0
257 XGPS-I J182902-103720 X 18 29 02.0451863664 -10 37 20.166965652           ~ 1 0
258 XGPS-I J182902-115341 X 18 29 02.65 -11 53 41.8           ~ 1 0
259 XGPS-I J182903-110230 X 18 29 03.02 -11 02 30.4           ~ 1 0
260 USNO-A2.0 0750-13288301 X 18 29 05.70 -10 46 34.7           ~ 1 0
261 XGPS-I J182907-104432 X 18 29 07.32 -10 44 32.4           ~ 1 0
262 XGPS-I J182907-104604 X 18 29 07.37 -10 46 04.7           ~ 1 0
263 XGPS-I J182908-102053 X 18 29 08.29 -10 20 53.4           ~ 1 0
264 USNO-A2.0 0750-13290417 X 18 29 08.71 -10 49 30.6           ~ 1 0
265 XGPS-I J182909-105644 X 18 29 09.95 -10 56 44.3           ~ 1 0
266 USNO-A2.0 0750-13292023 X 18 29 10.8660722784 -10 42 45.374002560       14.12 13.53 ~ 2 1
267 XGPS-I J182911-105544 * 18 29 11.61 -10 55 44.9       17.84   M5e 2 0
268 UCAC2 28413241 * 18 29 13.4370045384 -09 57 30.357963936       12.67 11.79 ~ 2 1
269 XGPS-I J182914-104629 X 18 29 14.34 -10 46 29.7           ~ 1 0
270 USNO-A2.0 0750-13294401 X 18 29 14.36 -10 24 48.4           ~ 1 0
271 XGPS-I J182914-104419 X 18 29 14.86 -10 44 19.3           ~ 1 0
272 XGPS-I J182914-105744 X 18 29 14.94 -10 57 44.5           ~ 1 0
273 XGPS-I J182916-104601 X 18 29 16.15 -10 46 01.4           ~ 1 0
274 XGPS-I J182916-105444 X 18 29 16.20 -10 54 44.2           ~ 1 0
275 XGPS-I J182916-105348 X 18 29 16.47 -10 53 48.3           ~ 1 0
276 XGPS-I J182917-094723 X 18 29 17.37 -09 47 23.2           ~ 1 0
277 USNO-A2.0 0750-13297244 X 18 29 18.37 -10 32 40.4           ~ 1 0
278 XGPS-I J182918-112951 X 18 29 18.67 -11 29 51.4           ~ 1 0
279 XGPS-I J182918-104451 X 18 29 18.80 -10 44 51.7           ~ 1 0
280 XGPS-I J182919-110708 X 18 29 19.12 -11 07 08.1           ~ 1 0
281 XGPS-I J182919-104433 X 18 29 19.35 -10 44 33.4           ~ 1 0
282 XGPS-I J182920-104237 X 18 29 20.39 -10 42 37.3           ~ 1 0
283 XGPS-I J182920-105042 X 18 29 20.83 -10 50 42.2           ~ 1 0
284 XGPS-I J182921-100304 X 18 29 21.80 -10 03 04.6           ~ 1 0
285 SSTGLMC G021.0457+00.0388 X 18 29 22.14 -10 32 40.2           ~ 1 0
286 XGPS-I J182923-101211 X 18 29 23.68 -10 12 11.3           ~ 1 0
287 XGPS-I J182924-100456 X 18 29 24.24 -10 04 56.7           ~ 1 0
288 USNO-A2.0 0750-13301346 * 18 29 24.3926855184 -10 29 56.790702456           ~ 2 1
289 XGPS-I J182924-111634 X 18 29 24.51 -11 16 34.3           ~ 1 0
290 XGPS-I J182924-094624 X 18 29 24.76 -09 46 24.6           ~ 1 0
291 USNO-A2.0 0750-13301735 X 18 29 24.9393844776 -10 51 13.668431256           ~ 1 0
292 USNO-A2.0 0750-13303273 X 18 29 26.99 -09 51 47.1           ~ 1 0
293 XGPS-I J182927-095218 X 18 29 27.26 -09 52 18.9           ~ 1 0
294 XGPS-I J182927-102919 X 18 29 27.34 -10 29 19.1           ~ 1 0
295 XGPS-I J182928-105257 X 18 29 28.43 -10 52 57.9           ~ 1 0
296 XGPS-I J182929-094224 X 18 29 29.82 -09 42 24.4           ~ 1 0
297 XGPS-I J182930-105926 X 18 29 30.87 -10 59 26.3           ~ 2 0
298 XGPS-I J182930-113013 X 18 29 30.94 -11 30 13.9           ~ 1 0
299 XGPS-I J182931-110418 X 18 29 31.22 -11 04 18.6           ~ 1 0
300 2MASS J18293317-1031500 X 18 29 33.18 -10 31 50.0           ~ 1 0
301 SSTGLMC G020.7877-00.1517 X 18 29 34.14 -10 51 41.2           ~ 1 0
302 XGPS-I J182935-111552 X 18 29 35.23 -11 15 52.5           ~ 1 0
303 XGPS-I J182936-100726 X 18 29 36.14 -10 07 26.9           ~ 1 0
304 XGPS-I J182937-104503 X 18 29 37.07 -10 45 03.2           ~ 1 0
305 XGPS-I J182937-093750 X 18 29 37.59 -09 37 50.9           ~ 1 0
306 XGPS-I J182938-094900 X 18 29 38.87 -09 49 00.8           ~ 2 0
307 XGPS-I J182938-094818 X 18 29 38.90 -09 48 18.8           ~ 1 0
308 ATO J277.4150-10.9763 EB? 18 29 39.6157752816 -10 58 34.562850024           ~ 3 1
309 XGPS-I J182940-113225 X 18 29 40.30 -11 32 25.1           ~ 1 0
310 XGPS-I J182942-110050 X 18 29 42.503 -11 00 49.50         14.77 ~ 2 1
311 XGPS-I J182943-105801 X 18 29 43.98 -10 58 01.4           ~ 1 0
312 GAL 021.7+00.3 SR? 18 29 44.17 -09 51 22.7           ~ 3 1
313 SSTGLMC G020.9258-00.1368 X 18 29 46.56 -10 43 56.2           ~ 1 0
314 XGPS-I J182947-110945 X 18 29 47.69 -11 09 45.1           ~ 1 0
315 XGPS-I J182948-110604 X 18 29 48.80 -11 06 04.3           ~ 1 0
316 XGPS-I J182949-110319 X 18 29 49.21 -11 03 19.4           ~ 1 0
317 XGPS-I J182949-103611 X 18 29 49.78 -10 36 11.1           ~ 1 0
318 XGPS-I J182950-110159 X 18 29 50.27 -11 01 59.8           ~ 1 0
319 XGPS-I J182950-110942 X 18 29 50.77 -11 09 42.1           ~ 1 0
320 XGPS-I J182950-111634 X 18 29 50.87 -11 16 34.2           ~ 1 0
321 XGPS-I J182951-100441 X 18 29 51.57 -10 04 41.0   17.7   15.4   ~ 2 0
322 USNO-A2.0 0750-13321102 X 18 29 52.9133350224 -11 06 59.804494560           ~ 1 0
323 XGPS-I J182954-102852 X 18 29 54.79 -10 28 52.3           ~ 1 0
324 USNO-A2.0 0750-13323591 X 18 29 55.97 -11 05 33.8           ~ 1 0
325 XGPS-I J182956-111313 X 18 29 56.52 -11 13 13.5           ~ 1 0
326 XGPS-I J182956-110458 X 18 29 56.85 -11 04 58.8           ~ 1 0
327 XGPS-I J182957-110235 X 18 29 57.14 -11 02 35.8           ~ 1 0
328 USNO-A2.0 0750-13325431 X 18 29 58.20 -10 30 54.0           ~ 1 0
329 XGPS-I J183000-110720 X 18 30 00.38 -11 07 20.3           ~ 1 0
330 XGPS-I J183000-094118 X 18 30 00.85 -09 41 18.9           ~ 1 0
331 XGPS-I J183002-094953 X 18 30 02.04 -09 49 53.8           ~ 1 0
332 XGPS-I J183002-110735 X 18 30 02.31 -11 07 35.6           ~ 1 0
333 USNO-A2.0 0750-13332059 X 18 30 05.60 -10 42 05.5           ~ 1 0
334 XGPS-I J183006-102221 X 18 30 06.89 -10 22 21.1           ~ 1 0
335 XGPS-I J183012-110759 X 18 30 12.70 -11 07 59.4           ~ 1 0
336 XGPS-I J183013-102759 X 18 30 13.43 -10 27 59.7           ~ 1 0
337 XGPS-I J183013-110450 X 18 30 13.72 -11 04 50.2           ~ 1 0
338 UCAC3 160-180059 * 18 30 15.8465755536 -10 24 59.292723420       14.85 14.15 ~ 2 1
339 USNO-A2.0 0750-13340834 HX? 18 30 15.9331562736 -10 45 38.338606548       12.74   Be 3 1
340 USNO-A2.0 0750-13341855 * 18 30 17.0078159880 -09 53 27.137544720       14.84   M2e 2 1
341 XGPS-I J183017-103143 X 18 30 17.03 -10 31 43.5           ~ 1 0
342 XGPS-I J183017-110215 X 18 30 17.34 -11 02 15.6           ~ 1 0
343 UCAC2 28237563 * 18 30 17.8736791008 -10 27 27.674936928       11.75 11.04 ~ 2 1
344 XGPS-I J183018-100340 X 18 30 18.4737559824 -10 03 40.055387472           ~ 1 0
345 UCAC2 28061492 * 18 30 21.3578216040 -10 50 37.157276148       13.41 12.21 ~ 2 1
346 XGPS-I J183029-111110 X 18 30 29.38 -11 11 10.9           ~ 1 0
347 XGPS-I J183031-094030 X 18 30 31.99 -09 40 30.5           ~ 2 0
348 HD 170566 ** 18 30 32.2501435896 -10 51 50.336406036   8.43 7.95     F2V 26 1
349 UCAC2 28413431 * 18 30 32.6091808944 -09 47 30.097085352       14.19 12.60 ~ 2 1
350 UCAC3 160-180188 * 18 30 35.7583445304 -10 21 04.002912468       13.31 12.66 M4e/M5 3 1
351 USNO-A2.0 0750-13360556 X 18 30 37.74 -11 08 31.2           ~ 1 0
352 XGPS-I J183038-100248 X 18 30 38.11 -10 02 48.6           ~ 3 0
353 XGPS-I J183040-100155 X 18 30 40.92 -10 01 55.9           ~ 1 0
354 XGPS-I J183041-103320 X 18 30 41.13 -10 33 19.6           ~ 1 0
355 XGPS-I J183041-104121 X 18 30 41.19 -10 41 21.4           ~ 1 0
356 XGPS-I J183041-103939 X 18 30 41.46 -10 39 39.2           ~ 1 0
357 XGPS-I J183045-104414 X 18 30 45.50 -10 44 14.2           ~ 1 0
358 XGPS-I J183046-104623 X 18 30 46.63 -10 46 23.8           ~ 1 0
359 XGPS-I J183047-103853 X 18 30 47.15 -10 38 53.9           ~ 1 0
360 XGPS-I J183047-093925 X 18 30 47.85 -09 39 25.0           ~ 1 0
361 XGPS-I J183048-095941 X 18 30 48.02 -09 59 41.6           ~ 1 0
362 XGPS-I J183048-100036 X 18 30 48.26 -10 00 36.3           ~ 1 0
363 2MASS J18304994-1024291 X 18 30 49.94 -10 24 29.1           ~ 1 0
364 XGPS-I J183050-103817 X 18 30 50.02 -10 38 17.3           ~ 1 0
365 XGPS-I J183050-104735 X 18 30 50.08 -10 47 35.4           ~ 1 0
366 USNO-A2.0 0750-13371710 X 18 30 50.31 -10 29 55.5           ~ 1 0
367 USNO-A2.0 0750-13373184 X 18 30 51.54 -10 48 09.3           ~ 1 0
368 XGPS-I J183052-095053 X 18 30 52.78 -09 50 53.1           ~ 1 0
369 ATO J277.7216-10.3270 WR* 18 30 53.2025518224 -10 19 37.133898204           WN6 6 0
370 XGPS-I J183053-111255 X 18 30 53.53 -11 12 55.2           ~ 1 0
371 USNO-A2.0 0750-13379212 X 18 30 57.9481438128 -10 34 53.682104856           ~ 2 0
372 XGPS-I J183058-104157 X 18 30 58.20 -10 41 57.4           ~ 1 0
373 2MASS J18305902-1057202 X 18 30 59.03 -10 57 20.3           ~ 1 0
374 USNO-A2.0 0750-13382260 X 18 31 01.65 -09 36 19.8           ~ 1 0
375 XGPS-I J183102-094607 X 18 31 02.5281176424 -09 46 07.144006836           ~ 1 0
376 G 155-20B PM* 18 31 03.7680572376 -09 58 15.374844012   19.41   16.92 14.50 M6e 6 0
377 XGPS-I J183104-094433 X 18 31 05.55 -09 44 33.7           ~ 1 0
378 USNO-A2.0 0750-13390292 X 18 31 09.98 -10 51 13.9           ~ 1 0
379 USNO-A2.0 0750-13393881 X 18 31 13.0720517160 -09 49 24.155183280       21.60   ~ 2 0
380 USNO-A2.0 0750-13394553 X 18 31 13.74 -10 29 41.8           ~ 1 0
381 USNO-A2.0 0750-13394829 X 18 31 13.83 -09 47 45.5           ~ 1 0
382 XGPS-I J183115-102757 X 18 31 15.01 -10 27 57.8           ~ 1 0
383 XGPS-I J183116-100517 X 18 31 16.22 -10 05 17.3           ~ 1 0
384 USNO-A2.0 0750-13397375 X 18 31 16.43 -10 52 42.4           ~ 1 0
385 WR 117-1 WR* 18 31 16.5273907992 -10 09 25.000559280       13.34 11.63 WN8 5 1
386 XGPS-I J183119-103230 X 18 31 19.79 -10 32 30.9           ~ 1 0
387 XGPS-I J183119-102546 X 18 31 19.98 -10 25 46.5           ~ 1 0
388 XGPS-I J183122-101912 X 18 31 22.84 -10 19 12.4           ~ 1 0
389 XGPS-I J183123-094005 X 18 31 23.78 -09 40 05.8           ~ 1 0
390 HD 170740B * 18 31 24.8738076288 -10 47 47.823525240   9.51 9.29   9.12 B9V 13 0
391 XGPS-I J183129-103435 X 18 31 29.2219114728 -10 34 35.183797716           ~ 1 0
392 XGPS-I J183131-102957 X 18 31 31.52 -10 29 57.0           ~ 1 0
393 XGPS-I J183133-102208 X 18 31 33.08 -10 22 08.7           ~ 1 0
394 USNO-A2.0 0750-13416775 X 18 31 34.29 -09 51 55.2           ~ 3 0
395 USNO-A2.0 0750-13416951 X 18 31 34.47 -10 09 45.1           ~ 1 0
396 2MASS J18313515-1024516 X 18 31 35.16 -10 24 51.7           ~ 1 0
397 XGPS-I J183135-100142 X 18 31 35.64 -10 01 42.6           ~ 1 0
398 XGPS-I J183135-102855 X 18 31 35.72 -10 28 55.4           ~ 1 0
399 USNO-A2.0 0750-13423792 X 18 31 40.7652871104 -09 35 50.287967484           ~ 1 0
400 XGPS-I J183142-100525 X 18 31 42.00 -10 05 25.5           ~ 1 0
401 USNO-A2.0 0750-13428311 * 18 31 44.8267906944 -10 33 28.390258080           ~ 1 0
402 XGPS-I J183153-102449 X 18 31 53.26 -10 24 49.3           ~ 1 0
403 XGPS-I J183155-094706 X 18 31 55.46 -09 47 06.3           ~ 1 0
404 XGPS-I J183156-102447 X 18 31 56.36 -10 24 47.8           ~ 2 0
405 XGPS-I J183157-100033 X 18 31 57.46 -10 00 33.3           ~ 1 0
406 SSTGLMC G021.6559-00.3630 X 18 31 57.99 -10 11 23.2           ~ 1 0
407 XGPS-I J183201-095342 X 18 32 01.94 -09 53 42.6           ~ 1 0
408 XGPS-I J183204-100035 X 18 32 04.18 -10 00 35.9           ~ 1 0
409 USNO-A2.0 0750-13450456 X 18 32 04.76 -10 06 01.3           ~ 1 0
410 IRAS 18293-0941 HX? 18 32 08.9370854568 -09 39 05.940276624         12.32 Be? 8 0
411 XGPS-I J183209-100648 X 18 32 09.14 -10 06 48.4           ~ 1 0
412 XGPS-I J183210-100031 X 18 32 10.80 -10 00 31.1           ~ 2 1
413 UCAC3 160-180948 * 18 32 12.9871352736 -10 06 34.448617476       15.05 13.21 ~ 2 1
414 XGPS-I J183213-095648 X 18 32 13.7738716656 -09 56 48.840900864           ~ 1 0
415 USNO-A2.0 0750-13463736 * 18 32 16.3188851376 -10 23 01.988670624           ~ 2 0
416 USNO-A2.0 0750-13471175 X 18 32 22.54 -09 55 46.8           ~ 1 0
417 XGPS-I J183225-100158 X 18 32 25.19 -10 01 58.7           ~ 2 0
418 XGPS-I J183228-100946 X 18 32 28.44 -10 09 46.8           ~ 1 0
419 XGPS-I J183228-100133 X 18 32 28.59 -10 01 33.8           ~ 1 0
420 XGPS-I J183234-100437 X 18 32 34.3262234400 -10 04 35.698227204           ~ 2 1
421 XGPS-I J183236-101144 * 18 32 36.64 -10 11 44.8       14.01   K1 3 1
422 USNO-A2.0 0750-13500933 X 18 32 46.78 -10 05 30.6           ~ 1 0
423 SWIFT J183251.6-100104 CV* 18 32 51.3999688713 -10 01 07.066413270       21.57   ~ 9 2
424 USNO-A2.0 0750-13512064 X 18 32 56.28 -10 07 29.4           ~ 1 0
425 NAME Scutum Spiral Arm PoG ~ ~           ~ 351 0
426 NAME Galactic Bulge reg ~ ~           ~ 4297 0

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