2009A&A...507..541G

Query : 2009A&A...507..541G

2009A&A...507..541G - Astronomy and Astrophysics, volume 507, 541-547 (2009/11-3)

Spectroscopic study of the open cluster Blanco 1.

GONZALEZ J.F. and LEVATO H.

Abstract (from CDS):

As a part of our program on binaries in open clusters, we present a spectroscopic study of the bright stars of Blanco1 aimed at detecting and characterizing spectroscopic binaries. Forty five stars previously mentioned as cluster candidates, plus another 24 stars in a wider region around the cluster were observed repeatedly during 6 years, with a spectral resolving power 13300. Radial velocities were measured by cross-correlations. We obtained a mean cluster velocity of 6.2±0.3km/s and determined kinematic membership. Eleven spectroscopic binaries were detected, and orbital solutions are presented for eight of them. Six binaries are confirmed to be members of the cluster. All of them are single-lined spectroscopic systems with periods in the range 1.9-1380 days. Considering all suspected binaries, the cluster binary frequency amounts to about 50%.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: individual: Blanco 1 - binaries: spectroscopic - techniques: radial velocities

VizieR on-line data: <Available at CDS (J/A+A/507/541): stars.dat table1.dat>

Simbad objects: 72

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Number of rows : 72
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 CD-30 19775 * 00 00 53.4312331776 -29 50 30.519486204   11.36 9.98     ~ 7 0
2 HD 224820 * 00 00 55.3379383968 -30 03 51.002663184   8.43 8.41     A0V 43 0
3 HD 224862 * 00 01 21.2321218656 -28 43 30.068159340   8.21 7.10     K0III 8 0
4 CD-31 19554 * 00 01 24.4791618672 -30 38 58.324810668   10.914 10.482     ~ 41 0
5 CD-29 18930 * 00 01 50.6070453312 -29 01 00.204890052   12.038 11.054     G8III 8 0
6 CD-28 18443 * 00 01 56.2595466456 -28 07 51.414495276   10.400 10.061     ~ 21 0
7 HD 224948 * 00 01 57.7519690656 -30 09 28.673906148   10.29 9.96     A9/F0V 41 0
8 HD 224964 * 00 02 04.1265523872 -30 41 06.824904612   9.07 8.96     A3V 45 0
9 HD 224976 * 00 02 11.9253149232 -30 15 02.916293472   10.36 10.00     F3V 16 0
10 * zet Scl SB* 00 02 19.9270625208 -29 43 13.588516668 4.29 4.879 5.022     B5IV 133 0
11 CD-29 18938 SB* 00 02 39.2420794248 -29 04 30.870087708   10.59 10.25     F2V 32 0
12 HD 225048 * 00 02 52.6395737808 -31 21 31.052437704   9.76 8.67     K1II/III 5 0
13 HD 225047 * 00 02 55.2273984408 -30 08 59.183837916   8.45 8.42     A0V 52 0
14 HD 225077 SB* 00 03 12.7340089848 -31 12 44.585839692   8.93 8.88     A0V 38 0
15 CD-31 19572 * 00 03 14.9631858840 -30 18 32.303097288   10.74 10.29     F1-5IV 15 0
16 CD-30 19799 SB* 00 03 16.0295712504 -29 20 00.516092316   11.272 10.675     G0 11 0
17 CD-30 19800 Er* 00 03 20.6140352856 -29 49 22.753595676   11.75 11.23     F8 34 0
18 CD-30 19801 SB* 00 03 21.8528903616 -30 01 10.528822956   10.75 10.36     F3V 26 0
19 CD-30 19802 * 00 03 24.3910794816 -29 48 49.446597744   11.07 10.56     F8V 36 0
20 Cl Blanco 1 OpC 00 03 24.7 -29 57 29           ~ 325 0
21 HD 225099 ** 00 03 25.82607 -29 00 02.3922   9.818 9.544 9.743 9.039 F3V 29 0
22 CD-31 19574 * 00 03 28.9816465104 -30 19 27.207705612   11.030 10.595     F4-6V 41 0
23 HD 225111 SB* 00 03 31.8883550808 -29 43 04.772702388   10.512 10.133     A5/7(III) 36 0
24 CD-30 19804 PM* 00 03 32.2901913408 -29 44 00.283411068   11.0 10.28     G6IV 7 0
25 CD-31 19576 * 00 03 33.5987668368 -30 28 41.958278292   10.99 10.61     F4-6V 26 0
26 HD 225119 SB* 00 03 37.0980677520 -28 25 01.690509684   8.07 8.18     ApSi 51 0
27 HD 225155 PM* 00 03 53.3711219208 -28 23 37.707416664   8.37 7.64     G5IV 38 0
28 HD 225187 * 00 04 11.9007705216 -30 08 05.679965328   6.986 7.074     B8V 47 0
29 CD-30 19812 * 00 04 18.7457656752 -29 49 32.509726932   10.93 10.46     F6V 16 0
30 HD 225200 * 00 04 20.3171235888 -29 16 07.760291052   6.40 6.39     A1V 72 0
31 HD 225206 * 00 04 22.9073402736 -29 22 53.658124932   7.71 7.74     B8/9V 67 0
32 CD-30 19815 * 00 04 33.1684162920 -29 38 28.042627740   11.576 11.055     F6-8 29 0
33 HD 225247 * 00 04 44.2812737160 -27 15 36.313160616   9.938 9.599     F0V 9 0
34 HD 225264 SB* 00 04 50.8236837768 -29 37 58.940860980   8.28 8.28     A0IV 72 0
35 HD 225282 * 00 04 53.3313519624 -30 15 23.784834240   8.34 8.29     A0IV/V 50 0
36 HD 50 SB* 00 05 26.7564621576 -30 17 24.468604872   9.99 9.68     A9V 39 0
37 HD 91 * 00 05 42.9570193392 -29 57 38.258320932   10.24 9.99     A9/F0V 52 0
38 HD 104 * 00 05 54.7320340224 -30 21 39.279878496   8.98 7.99     K0III 16 0
39 HD 117 * 00 05 57.0082360584 -30 19 42.135905352   9.65 9.19     F2V 18 0
40 HD 141 * 00 06 09.0765064992 -29 09 04.981660128   7.88 7.92     B9V 49 0
41 HD 212 * 00 06 55.7574800592 -30 36 11.092682844   10.52 10.27     F2/3V 38 0
42 HD 235 * 00 07 07.8069330144 -30 33 41.643803628   8.72 8.66     A1V 43 0
43 HD 343 * 00 08 01.9009289496 -30 01 54.059882088   10.01 9.71     A8/9V 49 0
44 HD 394 * 00 08 27.1130793960 -30 04 06.967450272   10.00 9.47     F8/GIII/IV+F 27 0
45 CD-30 14 * 00 08 31.8778453464 -29 43 32.883693240   11.19 9.82     F5V~ 5 0
46 * kap01 Scl ** 00 09 21.06696 -27 59 16.5322       6.54   F3V 56 0
47 HD 506 * 00 09 29.2588969104 -31 30 31.423387572   10.175 9.793     F2IV 12 0
48 CD-31 28 * 00 09 37.9640048304 -30 36 50.227427628   11.044 10.023     ~ 8 0
49 * kap02 Scl * 00 11 34.4207187216 -27 47 58.990819164   6.756 5.404     K2III 46 0
50 HD 923 dS* 00 13 34.0045890648 -29 34 32.491628616   8.74 8.55     A5IV 31 0
51 Cl Melotte 20 OpC 03 26 28.1 +48 58 30           ~ 861 0
52 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3433 0
53 HD 223158 * 23 47 14.5800900672 -30 26 10.383983628   9.20 9.14     A0V 12 0
54 CD-32 17669 * 23 47 21.4045293888 -31 21 08.654245632   10.67 9.66     K0 2 0
55 * del Scl PM* 23 48 55.5462353347 -28 07 48.976490953 4.55 4.58 4.57 4.53 4.55 A0VankB9((_lB)) 145 0
56 HD 223934 * 23 53 44.2029089736 -29 23 47.689673928   8.99 7.43     M0III 15 0
57 HD 223991A SB* 23 54 21.4064107302 -27 02 34.465411699   6.887 6.779     kA2hA2VmA4 57 0
58 HD 224066 * 23 54 50.1852666672 -31 21 48.861213768   10.45 10.05     F3V 4 0
59 V* AL Scl EB* 23 55 16.5873603912 -31 55 17.320846548 5.57 5.981 6.076     B5/8 117 0
60 HD 224112 EB* 23 55 16.6896570888 -31 53 03.373074852   6.734 6.816     B8V 57 0
61 HD 224350 PM* 23 57 08.1585728304 -26 37 24.396531492   7.699 6.249     K3III 17 0
62 CD-30 19753 * 23 57 38.9185234368 -29 50 06.459960804   10.67 10.24     F5 24 0
63 CD-30 19758 * 23 58 20.1035600280 -30 16 51.492914760   10.40 10.06     F0 25 0
64 HD 224515 * 23 58 33.6752300424 -29 12 37.196888796   9.52 8.40     K1III 13 0
65 HD 224536 PM* 23 58 41.6062074168 -29 30 10.054083348   9.54 9.09     F3V 7 0
66 CD-32 17753 * 23 58 48.7229312040 -31 28 47.325433584   9.50 8.48     K0 10 0
67 HD 224553 * 23 58 50.2086367872 -27 46 33.396621816   9.13 8.06     K0III 6 0
68 CD-29 18909 * 23 59 26.7340934832 -28 51 13.914448092   10.56 10.11     F6III 18 0
69 V* BU Scl LP? 23 59 27.8958580056 -29 29 06.595753668   7.174 5.573     K5III 30 0
70 HD 224642 * 23 59 34.6130824512 -31 41 17.794135968   7.89 7.54     F2V 22 0
71 HD 224663 * 23 59 44.6645697600 -32 12 38.598225660   9.14 8.25     G8IV 13 0
72 NAME Gould Belt PoG ~ ~           ~ 873 1

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