2009A&A...507..251C


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.03CET12:53:45

2009A&A...507..251C - Astronomy and Astrophysics, volume 507, 251-259 (2009/11-3)

Reaching the boundary between stellar kinematic groups and very wide binaries. The Washington double stars with the widest angular separations.

CABALLERO J.A.

Abstract (from CDS):

I look for and characterise very wide binaries and multiple systems with projected physical separations larger than s=0.1pc, which is generally believed to be a sharp upper limit to the distribution of wide binary semimajor axes. I investigated in detail 30 Washington double stars with angular separations of ρ>1000arcsec. I discarded 23 of them as probably unbound systems based on discordant astrometry, photometry, spectral types, and radial velocities. The remaining seven systems were subject to a comprehensive data compilation and derivation (multi-wavelength photometry, heliocentric distance, multiplicity, age, mass, metallicity, membership in a young kinematic group). Of the seven very wide systems, six have projected physical separations greater than the hypothetical cutoff at s=0.1 pc and four have separations s>0.2pc. Although there are two systems in young kinematic groups (namely HD 136654 and BD+32 2572 in the Hyades Supercluster, and AU Mic and AT Mic AB in the β Pictoris moving group), there is no clear prevalence of young systems (τ<1Ga) among these very wide binaries. Finally, I compare the binding energies of the seven systems with those of other weakly bound systems in the field.

Abstract Copyright:

Journal keyword(s): astronomical data bases: miscellaneous - binaries: general - binaries: visual - stars: kinematics

CDS comments: Table 2 WDS J11455+1821 is a misprint for WDS J11455+4740.

Simbad objects: 113

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Number of rows : 113

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 LP 404-21 PM* 00 04 11.7895043294 +18 03 10.492883997   17.5   15.5   ~ 4 0
2 HD 101 PM* 00 05 54.7487340652 +18 14 06.026686399 8.050 8.010   7.1   F8 47 0
3 HD 113 ** 00 05 55.47302 +18 04 33.1428   9.51 8.58     K0 42 0
4 ** GIC 4 ** 00 15 11.82 +24 54 51.3           ~ 1 0
5 G 130-59 PM* 00 15 11.8340885439 +24 54 51.562179537   15.40   13.5   K 4 0
6 G 158-50 ** 00 15 28.11090 -16 08 01.6303 14.49 13.187 11.483 10.273 8.711 M4V 114 0
7 G 130-60 PM* 00 16 53.5588821884 +24 20 48.201476379   15.18   13.355   ~ 7 0
8 V* GX And Er* 00 18 22.8849667932 +44 01 22.637271919   10.120   7.3   M2V 459 0
9 V* GQ And Er* 00 18 25.8244484426 +44 01 38.091239561   12.84 11.04 10.3   M3.5Ve 244 0
10 Koenigstuhl 1A PM* 00 21 10.7417557272 -42 45 40.168460495         13.92 M6 14 0
11 LP 765-52 PM* 00 37 29.4353069292 -15 45 52.273274791   16.0       ~ 3 0
12 LP 765-57 PM* 00 39 59.2148884069 -15 34 07.963592206   15.0       ~ 3 0
13 ** LDS 5286 ** 00 40 08.0 -15 34 06           ~ 1 0
14 BD+33 96 * 00 41 49.1276572519 +33 51 54.799897658   9.73 8.62     K0 1 0
15 BD+33 99 PM* 00 43 32.8583686531 +33 50 40.417151504   9.88   8.816   K5-V 62 0
16 BD+32 120 * 00 43 33.7987839484 +33 46 25.099742839   11.48 10.96     ~ 1 0
17 G 69-27 PM* 00 52 00.0640172858 +20 34 58.314211926       10.995   K7V 18 0
18 G 69-29 PM* 00 53 35.5113873135 +20 49 59.366131667   15.0   13.2   ~ 5 0
19 HD 6101 ** 01 02 24.57273 +05 03 41.2140 10.018 9.175 8.131 7.516 6.971 K2V 58 0
20 EGGR 7 WD* 01 03 49.9233050217 +05 04 30.567630963   14.24   13.7   DA5.9 85 0
21 LP 883-337 PM* 01 16 12.3851778294 -32 17 17.160218246     16.32     ~ 6 0
22 ** LDS 1091 ** 01 16 21.79 -31 58 12.3           ~ 1 0
23 LP 883-336 PM* 01 16 21.7981655978 -31 58 12.136882338     15.89     ~ 6 0
24 SDSS J022426.97-091823.5 WD* 02 24 26.9572533574 -09 18 23.584888363           DA 8 0
25 WD 0223-092 WD* 02 25 30.9610210445 -09 04 14.892859137           DA 8 0
26 G 73-59 PM* 02 27 36.683160 +08 29 58.84224   17.44 15.72 15.55   ~ 5 0
27 G 4-24 PM* 02 31 03.2800925675 +08 22 55.178270993   12.27   10.510   K4V 20 0
28 G 246-30 PM* 03 15 29.4435256050 +57 51 33.134258589   16.4   14.6   M3.5V 12 0
29 Ross 370 ** 03 16 13.81418 +58 10 02.5796   11.96 10.53     M0V 49 0
30 HD 21209 PM* 03 23 17.1766340832 -49 59 30.914228154   9.67 8.59     K3.5V 60 0
31 NLTT 11184 PM* 03 32 30.3972908534 +03 05 41.055436357   18.5   15.4   ~ 4 0
32 G 77-62 PM* 03 32 59.0033746156 +03 06 08.069543574   14.4   11.8   ~ 5 0
33 ** LDS 3504 ** 03 32 59.02 +03 06 07.9           ~ 1 0
34 ** LDS 104 ** 03 44 11.98 -64 48 24.8           K1-2III 2 0
35 * bet Ret SB* 03 44 11.9860371304 -64 48 24.778354082   4.968 3.833     K2-IIIb 104 0
36 HD 24293 PM* 03 48 01.1221928177 -64 50 11.694532807   8.50 7.85     G3V 40 0
37 HD 25296 ** 04 02 14.866 +28 07 35.16   8.26 7.31     G8II 9 0
38 * omi02 Eri Er* 04 15 16.3197260 -07 39 10.338087 5.69 5.25 4.43 3.74 3.29 K0V 748 0
39 NAME Ori I As* 05 38 -02.8           ~ 563 0
40 ** LDS 3673 ** 05 46 13.0 +56 26 00           ~ 1 0
41 V* QY Aur Er* 07 10 01.8338715851 +38 31 46.086394837   13.26 11.52 11.12   M4.5Ve 215 0
42 L 137-85 PM* 07 58 15.0046997440 -63 54 19.658443252     12.15     ~ 4 0
43 CD-63 370 PM* 07 58 57.3635354202 -63 37 45.470190085   10.50 9.97     ~ 10 0
44 G 9-38 Er* 08 58 15.061776 +19 45 46.96020   15.58   13.40   M7V+M7V 98 0
45 G 9-38A PM* 08 58 15.0737928221 +19 45 48.243897495     13.93     M8Ve 87 0
46 PG 0948+013 WD* 09 51 02.2292063165 +01 04 32.563027752   15.89 15.75 16.30 15.77 DB2 32 0
47 UCAC3 183-104733 PM* 09 51 03.7014364588 +01 04 17.233283067     15.15 14.92 12.74 ~ 1 0
48 2QZ J095234.0+011046 WD* 09 52 34.1162919176 +01 10 47.536124856   20.32 20.56     DA 3 0
49 LP 371-59 PM* 10 14 53.9015611300 +20 22 18.481731908   17.9 16.42 15.8   ~ 7 0
50 * 40 Leo dS* 10 19 44.1668778 +19 28 15.294314   5.24   4.5   F6IV-V 249 0
51 NAME TW Hya Association As* 11 01.9 -34 42           ~ 830 0
52 HD 97334 BY* 11 12 32.3505448605 +35 48 50.691547084   7.02   6.0   G2 257 0
53 HD 97371 PM* 11 12 44.2787294236 +35 49 48.477537234   8.228 7.205     G9 20 0
54 HD 97832 * 11 15 36.9798343690 +35 50 44.661167159   9.01 8.21     G5 10 0
55 G 57-15 PM* 11 43 39.1799823717 +18 24 56.696114729   16.26 15.06 14.76   ~ 7 0
56 G 57-17 PM* 11 45 11.8964863819 +18 20 58.404928142   14.83   12.976   M4.0V 20 0
57 HD 102158 PM* 11 45 30.5085093403 +47 40 00.770718104   8.66   7.7   G2 95 0
58 ** LEP 45 ** 11 45 30.51 +47 40 00.7           ~ 1 0
59 G 122-46 PM* 11 47 21.6070850999 +47 45 56.471880588   15.83   13.4   ~ 13 0
60 LP 268-33 PM* 13 08 36.3980359166 +33 32 25.497130868   18.2   15.1   ~ 6 0
61 LP 268-34 PM* 13 08 47.6567188024 +33 51 27.726800007   15.6   13.5   ~ 5 0
62 LP 268-35 PM* 13 08 58.2305611729 +33 53 09.629011834       11.124   K4V 13 0
63 ** LDS 5788 ** 13 40 54.23 +68 07 44.0           ~ 1 0
64 G 238-46 PM* 13 40 54.2436197796 +68 07 43.942584099       11.0   K3 8 0
65 G 238-50 PM* 13 44 29.3108044575 +68 27 50.267759182       11.019   K7.5Ve 13 0
66 ** BUP 156 ** 13 59 55.86 +25 19 33.5           F8 1 0
67 BD+26 2513 PM* 13 59 55.8690841339 +25 19 33.515480389   11.02 10.40     F8 4 0
68 BD+26 2517 * 14 01 11.5958 +25 21 36.211   9.97 9.51     G0 9 0
69 NAME Proxima Centauri Er* 14 29 42.9451234609 -62 40 46.170818907 14.21 12.95 11.13 9.45 7.41 M5.5Ve 994 0
70 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 582 0
71 * alf Cen ** 14 39 29.71993 -60 49 55.9990   0.4 -0.1     G2V+K1V 832 0
72 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1148 0
73 V* AX CrB BY* 15 19 40.1415362322 +31 50 33.028390804       8.5   K0V 21 0
74 ** LEP 74 ** 15 20 50.07 +31 28 48.3           ~ 1 0
75 HD 136654 PM* 15 20 50.0778121502 +31 28 48.389578605   7.44   6.6   F5 54 0
76 NAME Upper Sco Association As* 16 12 -23.4           ~ 1066 1
77 HD 149414 SB* 16 34 42.3556924921 -04 13 44.634894711 10.48 10.37 9.63     G5Ve 188 0
78 G 17-27 PM* 16 35 29.0218409592 -03 57 57.685766685   15.47 13.85 13.53   M0.0V 20 0
79 Wolf 629 PM* 16 55 25.2215746210 -08 19 21.301127712 14.691 13.436 11.759 10.574 9.044 M3.5V 194 0
80 HD 152751 Er* 16 55 28.75758 -08 20 10.7876 11.647 10.593 9.023 7.937 6.565 M3.5Ve 488 1
81 VB 8 Er* 16 55 35.2561420232 -08 23 40.752903617   18.7 16.916 14.566 12.24 M7Ve 387 0
82 HD 153525 BY* 16 57 42.2281896066 +47 21 43.714396845       7.3   K3V 89 0
83 HD 153557 BY* 16 57 53.1788017484 +47 22 00.062106840   8.80 7.82 8.49   K3V 90 0
84 G 182-42 PM* 18 11 06.2238024314 +32 41 00.374011577       9.9   K5 13 0
85 G 206-16 PM* 18 11 52.2622297474 +32 25 20.520730748   16.7   14.7   ~ 11 0
86 LP 334-16 PM* 18 11 55.5285794415 +32 25 47.205650210   17.8   15.6   ~ 6 0
87 TYC 2111-1470-1 ** 18 38 10.8089586482 +25 41 33.680367719   11.95 11.25 11.18   ~ 1 0
88 HD 180617 Ro* 19 16 55.2565250393 +05 10 08.038856129 11.768 10.63 9.115 8.076 6.782 M3-V 356 0
89 VB 10 Er* 19 16 57.6103282334 +05 09 01.588675251     17.30     M8V 438 1
90 G 143-27 SB* 20 05 51.0179148829 +15 01 59.284118267   14.2   13.5   ~ 15 0
91 ** OSO 117AB ** 20 08 22.01 +15 02 34.0           ~ 1 0
92 G 143-33 PM* 20 08 22.0165112775 +15 02 34.156011657       11.4   ~ 9 0
93 LP 754-50 PM* 20 12 09.4538200434 -12 53 35.388333408   12.92 10.94 10.906   M0Vk 15 0
94 * ksi Cap Pe* 20 12 25.8706277984 -12 37 02.993423848   6.33 5.85     F7VFe-0.5 84 0
95 HD 340345 ** 20 30 10.6682708731 +26 50 34.200586250       9.303   M1V 49 0
96 HD 340459 * 20 31 50.5329335597 +26 49 19.295031880   11.15 10.06     G8 2 0
97 V* AT Mic Er* 20 41 51.15925 -32 26 06.8283 12.753 11.909 10.343 9.098 7.383 M4.5Ve+M4.5Ve 330 0
98 V* AU Mic BY* 20 45 09.5323695486 -31 20 27.241710746   10.05 8.627 9.078 6.593 M1VeBa1 912 0
99 G 210-44 ** 20 58 11.4549619958 +40 11 28.980524089       10.3   K7Ve 23 0
100 HD 200077 SB* 20 59 55.2769487993 +40 15 31.757486509   7.136 6.593 7.32   F8 65 0
101 BD+26 4249 ** 21 43 31.6419135623 +27 20 37.318204438   10.05 9.65 9.30   F8V 9 0
102 G 127-13 PM* 22 17 25.8662508542 +23 35 04.449523439   15.32   13.385   M2.76 9 0
103 ** GIC 179 ** 22 17 25.87 +23 35 04.7           ~ 1 0
104 G 127-14 PM* 22 17 59.5392556703 +24 09 20.170448741   15.4   12.9   ~ 7 0
105 V* EZ Aqr Er* 22 38 33.576000 -15 17 59.75700 15.762 14.33 12.38 12.12 8.677 M5V 284 1
106 V* TW PsA BY* 22 56 24.0532946025 -31 33 56.035064606   7.58 6.48     K4Ve 270 0
107 * alf PsA ** 22 57 39.04625 -29 37 20.0533 1.31 1.25 1.16 1.11 1.09 A4V 1129 3
108 G 68-7 PM* 23 19 03.2707892783 +21 52 54.281672804   15.84   14.1   ~ 6 0
109 G 68-12 PM* 23 22 48.8399595854 +22 07 59.337670076       9.2   F5 19 0
110 ** GIC 191 ** 23 22 48.84 +22 07 59.3           F5 1 0
111 HD 221356 PM* 23 31 31.5028338070 -04 05 14.655967513   7.03 6.49     F7V 138 0
112 BD+19 5116 ** 23 31 52.17898 +19 56 14.1505 12.737 11.749 10.165 8.982 7.446 M4+M5 423 0
113 NAME Hyades Moving Group MGr ~ ~           ~ 240 0

    Equat.    Gal    SGal    Ecl

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2020.12.03-12:53:45

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