2019MNRAS.486.4098I

Query : 2019MNRAS.486.4098I

2019MNRAS.486.4098I - Mon. Not. R. Astron. Soc., 486, 4098-4113 (2019/July-1)

Wide binary companions to massive stars and their use in constraining natal kicks.

IGOSHEV A.P. and PERETS H.B.

Abstract (from CDS):

The origin of ultrawide massive binaries (orbital separations 103-2 x 105 au) and their properties are neither well characterized nor understood. Here we use the second Gaia data release to search for wide astrometric companions to Galactic O-B5 stars which share similar parallax and proper motion with the primaries. Using the data we characterize the frequency and properties of such binaries. We find an ultrawide multiplicity fraction of 4.4 ± 0.5 per cent, to our completeness limit (up to ≃17 mag; down to G-stars at distances of 0.3-2 kpc, excluding stars in clusters). The secondary mass-function is generally consistent with a Kroupa initial stellar function; if extrapolated to lower mass companion stars we then might expect a wide-binary fraction of ∼27±5 per cent. In addition we use these data as a verification sample to test the existence of ultrawide binaries among neutron stars (NSs) and black holes (BHs). We propose that the discovery of such binary can provide unique constraints on the weakest natal kicks possible for NSs/BHs. If a compact object is formed in an ultrawide binary and receives a very low natal kick, such a binary should survive as a common proper motion pair. We therefore use Gaia data to search for ultrawide companions to pulsars (normal and millisecond ones) and X-ray binaries. We find no reliable pairs. Future data could potentially provide stringent constraints through this method.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): astrometry - stars: neutron - supernovae: general - X-rays: binaries

CDS comments: Table 1: Gaia DR2 32130148689224472, 32130151480926146, 32130160070875641, 32130107500475955, 32130105095294243, and 32129576642518218, do not exist in the Gaia DR2 Catalogue (I/345/gaia2)

Simbad objects: 250

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Number of rows : 250
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 2MASS J00040384+5417213 Y*? 00 04 03.8541521784 +54 17 21.412442760           ~ 2 0
2 HD 225190 Pu* 00 04 21.2958791952 +54 16 28.528547988 7.13 7.70 7.79     B3V 31 0
3 2MASS J00050626+5418489 Y*? 00 05 06.2685909576 +54 18 48.929021748       15.10   ~ 2 0
4 2MASS J00050979+5420451 Y*? 00 05 09.8078356536 +54 20 45.090479328           ~ 2 0
5 PSR B0031-07 Psr 00 34 08.9100 -07 21 56.000           ~ 323 0
6 BD+60 73 HXB 00 37 09.6358153296 +61 21 36.487888344 9.79 10.231 9.697 9.589   BN0.5II-III 85 0
7 AX J0048.2-7309 HXB 00 48 14.0655853176 -73 09 39.178119024           ~ 8 0
8 SXP 4.78 HXB 00 51 38.7742234656 -72 17 04.796861748 14.63 15.66 15.63   15.44 B0V-B1Ve 49 0
9 CXOU J005510.0-374212 HXB 00 55 09.990 -37 42 12.16     22.44     WNE 126 1
10 PSR B0052+51 Psr 00 55 45.3981 +51 17 24.601           ~ 47 0
11 * gam Cas HXB 00 56 42.5310945 +60 43 00.264089 1.18 2.29 2.39 2.32 2.40 B0.5IVpe 1208 0
12 PSR B0059+65 Psr 01 02 32.9914 +65 37 13.416           ~ 44 0
13 PSR B0105+65 Psr 01 08 22.5049 +66 08 34.499           ~ 75 0
14 EM* AS 14 HXB 01 15 59.0548907688 +59 09 14.210267328   11.79 11.36     B2 19 0
15 PSR B0136+57 Psr 01 39 19.744 +58 14 31.73     13.41     ~ 151 0
16 PSR B0144+59 Psr 01 47 44.6434 +59 22 03.284           ~ 63 0
17 UCAC4 705-013307 * 01 51 30.6554400984 +50 49 01.073876664   16.24 15.10 14.86   ~ 1 0
18 UCAC4 705-013311 * 01 51 33.1601304168 +50 49 00.474484044           ~ 1 0
19 BD+50 377 * 01 51 41.7789604704 +50 50 27.596484600   11.02 10.51     B5 3 0
20 PSR B0154+61 Psr 01 57 49.9434 +62 12 26.648           ~ 123 0
21 IGR J01583+6713 HXB 01 58 18.4911998640 +67 13 23.459780244 15.74 15.672 14.400 13.44 12.55 B2IVe+ 32 0
22 HD 237121 * 03 20 44.8056474096 +58 51 20.034689400 10.527 9.33 8.99     B0.5V 40 0
23 HD 20508 V* 03 20 53.5697513112 +60 01 49.268250660 9.986 8.75 8.41     B1.5IV 34 0
24 2MASS J03205747+5850592 Em* 03 20 57.4872459744 +58 50 59.257497012           ~ 2 0
25 UCAC4 751-028011 * 03 21 08.3842825872 +60 00 53.267464656   16.74 15.62 15.67   ~ 1 0
26 PSR B0320+39 Psr 03 23 26.6619 +39 44 52.403           ~ 129 0
27 2MASS J03310957+4141336 * 03 31 09.5763461040 +41 41 33.637610328           ~ 1 0
28 HD 21650 Em* 03 31 15.6785789496 +41 43 35.235665652   7.35 7.34     B5 35 0
29 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 645 1
30 PSR J0337+1715 Psr 03 37 43.8210968640 +17 15 14.886499572           ~ 97 0
31 TYC 3728-530-1 * 03 41 41.1583950408 +58 29 16.872192600 14.314 12.11 11.78     B5 5 0
32 UCAC4 743-030637 * 03 41 41.5785713616 +58 29 12.848711460           ~ 1 0
33 HD 24190 SB* 03 52 18.9579628248 +34 13 19.612811028 6.84 7.46 7.45     B2V 96 0
34 CRTS J035224.2+341540 RS* 03 52 24.3102810384 +34 15 40.773119112       14.43   ~ 3 0
35 PSR B0355+54 Psr 03 58 53.7165 +54 13 13.727           ~ 437 1
36 LB 3357 * 04 25 15.1244562936 -67 08 35.143432224   13.52 12.50 12.33   B2V 7 0
37 UCAC4 115-003962 * 04 25 16.2632219040 -67 08 34.709411256       14.42   ~ 1 0
38 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 904 0
39 HD 282430 Pu* 04 46 34.5903778776 +30 36 56.077672068   10.86 10.20 10.33   B5 5 0
40 UCAC4 604-015110 * 04 46 34.9176516624 +30 36 55.949798052       13.21   ~ 1 0
41 PSR B0450+55 Psr 04 54 07.709 +55 43 41.51           ~ 161 0
42 2MASS J05065551-0321132 TT* 05 06 55.5165452664 -03 21 13.327504020 13.54 13.65 12.84 12.18 11.42 B3e 37 1
43 2MASS J05084597+2129441 Y*? 05 08 45.9750682776 +21 29 44.067407316       13.88   ~ 2 0
44 HD 33090 * 05 08 46.6186944144 +21 29 44.344880160   8.52 8.36     B5 24 0
45 HD 34921 HXB 05 22 35.2313961840 +37 40 33.638562768 6.78 7.64 7.48     B0IVpe 132 0
46 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17428 0
47 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5258 0
48 HD 245770 HXB 05 38 54.5748918624 +26 18 56.836952784 9.30 9.84 9.39 8.77 8.30 O9/B0III/Ve 980 0
49 UCAC4 606-026019 * 05 54 32.5100165784 +31 10 50.169299340   16.10 15.41 15.15   ~ 1 0
50 UCAC4 606-026030 * 05 54 35.4412792608 +31 11 16.291246452   15.15 14.67 14.52   ~ 1 0
51 HD 248903 * 05 54 35.7461726088 +31 09 55.300539744   9.70 9.66     B3 10 0
52 UCAC4 606-026048 * 05 54 39.0072702240 +31 08 58.650835452   14.49 14.18 14.11   ~ 1 0
53 HD 249179 bC? 05 55 55.0408392960 +28 47 06.421864164   10.11 10.00     B5ne 40 1
54 PSR B0559-05 Psr 06 01 58.9730 -05 27 51.020           ~ 90 0
55 UCAC4 563-025067 * 06 09 54.5165701728 +22 29 50.850520440       13.09   ~ 1 0
56 HD 252532 * 06 09 54.9944778840 +22 30 01.319488992   11.52 11.68     B5 6 0
57 PSR B0613-02.0 Psr 06 13 43.9759 -02 00 47.228           ~ 268 1
58 PSR B0611+22 Psr 06 14 17.0324288405 +22 29 57.017874999           ~ 266 0
59 UCAC4 385-014580 * 06 28 15.5045328552 -13 03 02.088185004       15.98   ~ 1 0
60 HD 45677 Be* 06 28 17.4219710352 -13 03 11.128860972 7.86 8.52 8.50 8.11 8.01 B2IV/V[e] 330 0
61 PSR B0626+24 Psr 06 29 05.7273 +24 15 41.546           ~ 112 0
62 PSR B0628-28 Psr 06 30 49.3710 -28 34 42.200           ~ 295 0
63 HD 49798 HXB 06 48 04.7001531360 -44 18 58.436036028 6.758 8.017 8.287 8.391 8.543 sdO6 328 0
64 PSR B0656+14 Psr 06 59 48.1960 +14 14 19.400   24.85 24.90     ~ 869 1
65 UCAC4 435-026471 * 07 01 26.8543565496 -03 07 14.215204848       14.28   ~ 1 0
66 HD 52533 SB* 07 01 27.0486333888 -03 07 03.286283952 6.66 7.57 7.68     O8.5IVn 116 0
67 PSR B0727-18 Psr 07 29 32.2900 -18 36 42.210           ~ 92 0
68 HD 63666 HXB 07 47 23.5848942480 -53 19 56.822589048   7.60 7.60     B7IV/V 35 0
69 PSR J0751+1807 Psr 07 51 09.1539 +18 07 38.335           ~ 289 1
70 V* V572 Pup HXB 08 12 28.3575205680 -31 14 52.138451400 12.14 13.03 12.74 12.44   B0.2IVe 68 0
71 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 406 0
72 PSR B0818-13 Psr 08 20 26.4020 -13 50 56.400           ~ 211 0
73 SS 188 HXB 08 26 13.6542691584 -37 37 11.872602552   13.47 12.33     OB 15 0
74 PSR B0823+26 Psr 08 26 51.5068 +26 37 21.297           ~ 512 1
75 HD 74194 HXB 08 40 47.7915253032 -45 03 30.235569624 7.05 7.77 7.55 8.70   O8.5Ib-II(f)p 209 0
76 V* GP Vel HXB 09 02 06.8608812864 -40 33 16.899168060 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1503 0
77 CD-49 4263 * 09 15 52.7893643880 -50 00 43.784843184 11.88 12.03 11.05 10.78   O7.5V((f)) 18 0
78 2MASS J09155359-5000290 * 09 15 53.5854220920 -50 00 29.199086172           ~ 3 0
79 UCAC4 201-028315 * 09 15 54.2543478744 -49 59 53.105082504       15.55   ~ 3 0
80 PSR B0919+06 Psr 09 22 14.1600 +06 38 28.800           ~ 292 0
81 PSR B0950+08 Psr 09 53 09.2970 +07 55 36.400           ~ 755 2
82 GRO J1008-571 HXB 10 09 46.9642314696 -58 17 35.603851848       14.63   B0e 236 0
83 PSR J1012+5307 Psr 10 12 33.4345449600 +53 07 02.548542576     19.5     DA 379 1
84 PSR J1022+10 Psr 10 22 58.011 +10 01 52.85           ~ 230 2
85 PSR J1023+0038 Psr 10 23 47.6841824712 +00 38 41.005893516     17.31     GV 397 0
86 PSR J1025-07 Psr 10 24 38.6991893112 -07 19 19.045523388     19.81 18.78 18.00 ~ 240 1
87 LS 1698 HXB 10 37 35.3145142200 -56 47 55.869594756   12.00 11.48 11.38   B0III/V:e 108 0
88 WRAY 15-793 HXB 11 20 57.1736884968 -61 55 00.166078020 12.81 13.06 12.12     O9.5III/Ve 206 0
89 UCAC4 107-039945 * 11 26 24.6284337888 -68 40 36.585138612     15.07 14.82   ~ 1 1
90 V* GU Mus HXB 11 26 26.5961559600 -68 40 32.877752952           K3V-K7V 715 1
91 HD 100199 HXB 11 31 06.9121063752 -62 56 48.930444024 7.33 8.147 8.17 8.98   B1III 105 0
92 PSR B1133+16 Psr 11 36 03.0720 +15 51 15.500           ~ 668 0
93 IGR J11435-6109 HXB 11 44 00.2947782000 -61 07 36.483179736       15.70   B0.5Ve 58 1
94 UCAC4 145-093026 * 11 44 01.9273860840 -61 07 43.560662700       14.91   ~ 2 1
95 V* BP Cru HXB 12 26 37.5605188992 -62 46 13.261044684   12.482 10.803 10.304   B1Ia+ 687 0
96 V* RT Cru Sy* 12 34 53.7361211904 -64 33 56.099018448   12.20 11.35 12.09   M4/5e 93 0
97 V* V934 Cen LXB 12 36 08.1515281416 -33 44 46.103628480   9.47 7.85     M2III 16 0
98 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 468 0
99 PSR B1257+12 Psr 13 00 03.1075 +12 40 55.155           ~ 517 1
100 CPD-63 2495 HXB 13 02 47.6544015048 -63 50 08.626970292 10.34 10.72 9.98 10.03   O9.5Ve 790 0
101 PSR B1322+83 Psr 13 21 45.6315 +83 23 39.432           ~ 66 0
102 PSR J1455-3300 Psr 14 55 47.969872 -33 30 46.38030           ~ 140 1
103 PSR B1508+55 Psr 15 09 25.7 +55 31 33           ~ 301 1
104 PSR B1530+27 Psr 15 32 10.3646 +27 45 49.623           ~ 113 0
105 PSR B1541+09 Psr 15 43 38.8 +09 29 16           ~ 197 0
106 V* IL Lup HXB 15 47 08.2768672752 -47 40 10.284587760     11.96     ~ 493 1
107 UCAC4 212-112755 * 15 47 08.3353148520 -47 40 23.947956552       15.74   ~ 1 1
108 PSR B1556-44 Psr 15 59 41.5290 -44 38 45.740           ~ 129 0
109 PSR J1600-3053 Psr 16 00 51.903339 -30 53 49.37555           ~ 172 0
110 PSR B1604-00 Psr 16 07 12.1 -00 32 41           ~ 215 0
111 V* IS Nor A * 16 10 19.9951235064 -54 23 29.610787884           ~ 1 0
112 V* IS Nor ** 16 10 19.9952 -54 23 29.611   12.00 11.63 11.75   B4 4 0
113 V* IS Nor B * 16 10 20.0608725360 -54 23 32.053442244           ~ 1 0
114 PSR J1614-2230 Psr 16 14 36.5070 -22 30 31.207           ~ 391 1
115 IGR J16207-5129 HXB 16 20 46.2644580432 -51 30 06.045320232   18.9   16.28 13.4 B1Ia 62 0
116 HD 328064 * 16 21 30.6903537672 -45 05 17.204719884   10.44 10.30     B5 3 0
117 UCAC4 225-112087 * 16 21 42.5256236616 -45 05 48.524400348       15.94   ~ 1 0
118 PSR B1620-09 Psr 16 23 17.6599 -09 08 48.733           ~ 50 0
119 EM* VRMF 55 HXB 16 32 39.9402289536 -49 42 13.686446160     15     OB 13 0
120 PSR J1643-1224 Psr 16 43 38.2 -12 25 00           ~ 213 1
121 PSR B1642-03 Psr 16 45 02.0330 -03 17 57.200           ~ 363 0
122 UCAC4 227-121228 * 16 48 25.3656445488 -44 36 28.742183136           ~ 1 0
123 HD 328907 * 16 48 40.7289445080 -44 35 59.913061692   10.09 9.76     B5 3 0
124 HD 329215 * 16 57 38.6976318048 -44 49 46.490761848   10.87 10.50 10.66 10.11 A 7 0
125 NGC 6249 10 * 16 57 42.9123616944 -44 46 47.871364476   13.29 12.89     ~ 4 0
126 UCAC4 226-129765 * 16 57 47.4809644104 -44 48 24.997853592       16.07   ~ 2 0
127 HD 329213 * 16 57 47.7625096344 -44 51 05.353045704 9.5 9.98 9.79     B3 21 0
128 CD-44 11306 * 16 57 47.8354174320 -44 49 11.688419964   11.42 11.10     B5: 8 0
129 V* HZ Her LXB 16 57 49.8110126616 +35 20 32.486555472 11.90 14.89 13.63 13.88   B3/6ep 2076 0
130 HD 153295 HXB 17 00 25.2435659064 -42 19 00.279910236 9.05     9.52   B2e 78 0
131 PSR B1700-18 Psr 17 03 51.0915 -18 46 14.845           ~ 56 0
132 CD-49 11187B Pu* 17 08 30.5636587968 -49 28 02.954181144   9.33 9.16     ~ 7 0
133 HD 154538 Be* 17 08 31.5706581192 -49 28 03.942291936   8.76 8.62     B3V 18 0
134 PSR J1713+0747 Psr 17 13 49.5331917 +07 47 37.492580           ~ 464 1
135 UCAC4 226-137521 * 17 14 36.2506938504 -44 50 46.085497584       16.26   ~ 1 0
136 HD 155606 * 17 14 47.9904447216 -44 50 58.398833292   10.36 10.19     B5Ib 5 0
137 UCAC4 231-128154 * 17 22 54.0481056240 -43 56 00.861767196           ~ 1 0
138 HD 157020 * 17 22 54.2896200912 -43 55 17.859179064   9.47 9.39     B3III/IV 7 0
139 TYC 7387-998-1 EB* 17 32 24.4235269224 -36 41 10.563728136   10.08 10.08     ~ 2 0
140 UCAC4 267-112138 * 17 32 24.6257754624 -36 42 02.077078536           ~ 1 0
141 HD 158724 EB* 17 32 24.9494074776 -36 41 54.124688112   8.49 8.47     B5 8 0
142 PSR J1732-5049 Psr 17 32 47.7671 -50 49 00.110           ~ 75 0
143 PSR J1738+0333 Psr 17 38 53.966386 +03 33 10.87200           ~ 156 1
144 2MASS J17391121-3020306 * 17 39 11.2154946480 -30 20 30.422824404           ~ 2 1
145 AX J1739.1-3020 HXB 17 39 11.5515537336 -30 20 37.787917704     14.40 13.91   O8.5Iab(f) 156 1
146 PSR J1741+1351 Psr 17 41 31.1499024 +13 51 44.279709           ~ 95 0
147 PSR J1744-1134 Psr 17 44 29.4172 -11 34 54.710           ~ 270 1
148 UCAC4 315-122157 * 17 52 26.9600738880 -27 08 48.692343372       16.07   ~ 2 0
149 HD 162540 * 17 52 35.8045657368 -27 05 32.500482036   8.76 8.78     B5III 8 0
150 UCAC4 315-122227 * 17 52 39.7714907016 -27 05 11.970460320   13.10 12.64 12.44   ~ 2 0
151 UCAC4 257-135482 * 17 52 42.9366873720 -38 39 48.617183772       14.05   ~ 1 0
152 HD 162418 * 17 52 43.7629938888 -38 38 33.466181460 7.05 7.75 7.76 9.00   B2II 31 0
153 PSR B1753+52 Psr 17 54 22.9068 +52 01 12.244           ~ 38 0
154 IGR J17544-2619 HXB 17 54 25.2722906112 -26 19 52.576928292   14.71 12.94 12.10 10.38 O9Ib 188 0
155 UCAC4 297-135992 * 17 57 10.4949203712 -30 40 04.088952156       15.86   ~ 1 0
156 HD 163393 * 17 57 15.0201060504 -30 39 16.409964420   8.99 9.02     B5III 6 0
157 UCAC4 321-130343 * 18 04 32.7325435320 -25 59 24.332849808       14.67   ~ 1 0
158 HD 164950 Em* 18 04 39.5830293936 -26 01 07.262565312   9.37 9.100     B3/5II 11 0
159 HD 312640 * 18 09 15.5452213992 -18 58 26.024062152   10.36 10.34     B5 4 0
160 TYC 6272-438-1 * 18 09 22.2146761368 -18 59 11.111996184   11.66 11.59     ~ 2 0
161 UCAC4 345-134153 * 18 13 48.1533407616 -21 01 29.958694212       13.95   ~ 1 0
162 HD 314057 * 18 13 49.0671912504 -21 03 52.853019264   9.1 10.69 9.40 9.40 B2.5V 5 0
163 UCAC4 345-134326 * 18 13 56.2758246720 -21 02 53.693302992       12.60   ~ 1 0
164 UCAC4 366-122711 * 18 16 06.5783230176 -16 50 36.068448156       14.12   ~ 1 0
165 HD 167474 * 18 16 08.2117952712 -16 50 39.570182052   9.27 9.22     B5II/III 3 0
166 V* V4641 Sgr HXB 18 19 21.6343259256 -25 24 25.849595952     13.654   13.092 B9III 472 1
167 PSR B1818-04 Psr 18 20 52.5920 -04 27 37.120           ~ 211 0
168 UCAC4 583-063788 * 18 25 49.6641525528 +26 25 56.897221476       12.72   ~ 5 0
169 TYC 2114-2139-1 * 18 26 02.5493761848 +26 30 23.374762128   11.67 11.29     ~ 5 0
170 V* V479 Sct HXB 18 26 15.0561548880 -14 50 54.247274304 12.02 12.23 11.27 11.04   ON6V((f))z 571 2
171 2MASS J18262331+2618531 * 18 26 23.3173362720 +26 18 53.380318824           ~ 1 0
172 HD 170051 * 18 26 29.2211576712 +26 27 39.636747324 6.4 6.975 7.083     B2V 35 0
173 UCAC4 359-145225 * 18 26 34.2185484024 -18 14 48.800139612   15.18 14.38 14.32   ~ 1 0
174 HD 169675 * 18 26 38.7367108944 -18 13 50.797804656   10.14 10.04     B5/7V 4 0
175 PSR B1831-03 Psr 18 33 41.8890 -03 39 04.430           ~ 74 0
176 TYC 6279-380-2 * 18 35 19.6490116896 -22 05 27.481960140         11.14 ~ 2 0
177 HD 171348 Be* 18 35 20.4719389224 -22 05 27.373801668 7.42 8.13 8.00 8.90   B2Vnne 51 0
178 PSR B1839+56 Psr 18 40 44.5372 +56 40 54.852           ~ 102 0
179 PSR J1843-1113 Psr 18 43 41.261937 -11 13 31.06840           ~ 67 0
180 XTE J1858+034 HXB 18 58 35.6252850353 +03 26 10.535956648           B?e 81 0
181 PSR J1901-0906 Psr 19 01 53.0210 -09 06 11.900           ~ 46 0
182 PSR J1903+0327 Psr 19 03 05.7937 +03 27 19.222           ~ 158 1
183 BD+23 3549B * 19 04 37.6100364816 +23 19 43.774496868   8.95 8.83     A0 11 0
184 HD 177648 Be* 19 04 38.5047258768 +23 19 45.418023012 6.85 7.321 7.233     B2Ve 53 0
185 PSR J1909-3744 Psr 19 09 47.42820 -37 44 14.7740           ~ 285 2
186 PSR J1910+1256 Psr 19 10 09.701454 +12 56 25.48680           ~ 87 1
187 UCAC4 454-085623 * 19 11 03.2707489032 +00 42 44.835431508   16.47 15.19 15.21   ~ 1 0
188 UCAC4 453-089879 * 19 11 15.5612122176 +00 35 13.681694760   17.15 14.98 14.61   ~ 1 1
189 X Aql X-1 LXB 19 11 16.0571313336 +00 35 05.868232692           ~ 1136 1
190 HD 179126 * 19 11 20.0492925240 +00 42 56.566086768   9.18 8.82     B5III 11 0
191 PSR B1911+13 Psr 19 13 24.3527 +14 00 52.559           ~ 66 0
192 PSR J1918-0642 Psr 19 18 48.033123 -06 42 34.88950           ~ 115 0
193 UCAC4 564-085295 * 19 24 39.0944974080 +22 45 40.286355084       13.89   ~ 1 0
194 HD 344313 Be* 19 24 45.7712945880 +22 46 28.638379848 9.65 9.95 9.45     B2V:pe 36 0
195 HD 183058 V* 19 26 58.8717115584 +21 06 22.918655376 6.62 7.28 7.10     B5 31 0
196 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 753 0
197 V* V1671 Cyg Ro* 19 35 32.0102348112 +31 16 35.933414736 6.44 7.29 7.44     B2V 128 0
198 UCAC4 607-080991 * 19 35 42.8869465896 +31 15 16.461867132           ~ 1 0
199 PSR B1935+25 Psr 19 37 01.2544 +25 44 13.436           ~ 55 0
200 UCAC4 537-098092 * 19 38 27.0791027016 +17 15 37.102260204       12.11   ~ 2 0
201 HD 185418 * 19 38 27.4809937872 +17 15 26.048161044 7 7.639 7.485     B0.5V 138 0
202 UCAC4 454-099010 * 19 43 45.3679762704 +00 45 45.571483944           ~ 4 0
203 HD 186363 * 19 43 52.5884016984 +00 49 05.107253088   9.28 9.17     B5/7III 8 0
204 4U 1954+31 HXB 19 55 42.3383143920 +32 05 49.046285472   12.02 9.97     M4/5III 125 0
205 HD 226609 * 19 55 47.1997179648 +38 13 51.387306348   10.53 10.34     B5 6 0
206 Gaia DR3 2072510634482203136 * 19 55 47.3569347672 +38 13 54.011088984           ~ 1 0
207 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4334 0
208 PSR B2003-08 Psr 20 06 16.3650 -08 07 02.167           ~ 101 0
209 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 356 0
210 PSR B2020+28 Psr 20 22 37.0671 +28 54 23.104           ~ 306 1
211 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 265 1
212 [MT91] 213 Psr 20 32 13.1247390384 +41 27 24.346666440 13.12 13.08 11.266     B0Vp 290 0
213 PSR J2043+1711 Psr 20 43 20.8828 +17 11 28.941           ~ 108 1
214 PSR B2045-16 Psr 20 48 35.7700 -16 16 47.000           ~ 319 0
215 PSR B2053+36 Psr 20 55 31.3552 +36 30 21.489           ~ 98 0
216 GRO J2058+42 HXB 20 58 47.5371521256 +41 46 37.180486128   15.97 14.74 14.74 13.35 O9.5-B0IV-Ve 85 0
217 SAX J2103.5+4545 HXB 21 03 35.7100848936 +45 45 05.568751692   15.34 14.20 13.991 12.75 B0Ve 183 0
218 PSR B2110+27 Psr 21 13 04.3506 +27 54 01.160           ~ 103 0
219 PSR B2111+46 Psr 21 13 24.3295 +46 44 08.844           ~ 208 1
220 PSR J2124-3358 Psr 21 24 43.8464 -33 58 44.961           ~ 298 1
221 HD 235523 * 21 29 53.8292490672 +51 51 03.382850880   9.55 9.29     B5 7 0
222 HD 235524 * 21 29 54.6032144664 +51 52 34.515376356   9.65 9.39     B8 3 0
223 V* V1727 Cyg LXB 21 31 26.2133156448 +47 17 24.512055396 16.75 17.05 16.4     ~ 240 0
224 PSR J2144-3939 Psr 21 44 12.0500 -39 33 59.000           ~ 128 0
225 PSR B2145-07.8 Psr 21 45 50.45590 -07 50 18.5900           ~ 284 0
226 PSR B2148+63 Psr 21 49 58.7033 +63 29 44.277           ~ 90 0
227 PSR B2154+40 Psr 21 57 01.840 +40 17 45.89           ~ 146 0
228 BD+53 2790 HXB 22 07 56.2366802328 +54 31 06.408879888 9.4 10.11 9.84 9.64 9.43 O9.5Vep 209 0
229 UCAC4 723-093442 * 22 21 57.4253478864 +54 35 01.629609720           ~ 2 0
230 TYC 3986-3080-1 * 22 22 03.2780553288 +54 34 31.140386328   12.34 12.03     B5 7 0
231 PSR J2222-0137 Psr 22 22 05.98560 -01 37 15.8100           ~ 57 0
232 UCAC4 723-093499 * 22 22 10.5497980968 +54 34 50.859367824       15.90   ~ 2 0
233 PSR B2223+65 Psr 22 25 52.8627 +65 35 36.371           ~ 323 0
234 UCAC4 769-061371 * 22 26 48.9903356856 +63 44 17.237973552   14.91 13.97 13.77   ~ 1 0
235 HD 213023B * 22 26 52.2959298960 +63 43 06.635425368   10.11 9.445     ~ 1 0
236 HD 213023A * 22 26 52.3646255520 +63 43 04.912149324   9.729 9.047     O7.5Vz 6 0
237 4U 2238+60 HXB 22 39 20.8443538152 +61 16 26.607472284   16.26 14.80 13.89 12.92 Be 52 0
238 [D75b] Em* 22-115 Em* 22 54 03.7760593944 +58 54 01.552115088   13.374 12.497 12.759   B2e 9 0
239 2MASS J22542299+5854201 Y*? 22 54 23.0101839960 +58 54 20.058382224           ~ 6 0
240 2MASS J22542352+5854178 Y*? 22 54 23.5389553704 +58 54 17.741346696       16.45   ~ 5 0
241 2MASS J22563105+6246581 Y*O 22 56 31.0494797688 +62 46 58.123749576 21.187   17.08   14.83 ~ 5 0
242 HD 217086 Y*O 22 56 47.1887590800 +62 43 37.657173900 7.88 8.30 7.66 8.35   O7Vnn((f))z 255 0
243 HD 217817 Pu* 23 02 25.1747757792 +59 51 09.648149616   6.964 6.994     B0 31 0
244 2MASS J23023305+5948391 Y*? 23 02 33.0535096848 +59 48 39.165500448           ~ 3 0
245 PSR B2303+30 Psr 23 05 58.3212 +31 00 01.281           ~ 203 0
246 PSR B2310+42 Psr 23 13 08.5976 +42 53 12.987           ~ 135 0
247 Gaia DR3 1913543483833350528 * 23 24 36.9197770872 +36 17 37.481942004           ~ 1 0
248 HD 220598 SB* 23 24 43.3878585504 +36 21 43.830857268 6.12 6.89 7.02     B2V 33 0
249 PSR J2347-0612 Psr 23 46 50.4978 -06 09 59.899           ~ 59 0
250 PSR B2351+61 Psr 23 54 04.7830 +61 55 46.845           ~ 97 0

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