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

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

2009A&A...507..541G - Astronomy and Astrophysics, volume 507541-547 (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 - 2026 		#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 49 0
3 HD 224862 * 00 01 21.2321218656 -28 43 30.068159340   8.21 7.10     K0III 11 0
4 CD-31 19554 * 00 01 24.4791618672 -30 38 58.324810668   10.914 10.482     ~ 48 0
5 CD-29 18930 * 00 01 50.6070453312 -29 01 00.204890052   12.038 11.054     G8III 10 0
6 CD-28 18443 * 00 01 56.2595466456 -28 07 51.414495276   10.400 10.061     ~ 22 0
7 HD 224948 * 00 01 57.7519690656 -30 09 28.673906148   10.29 9.96     A9/F0V 50 0
8 HD 224964 * 00 02 04.1265523872 -30 41 06.824904612   9.07 8.96     A3V 51 0
9 HD 224976 * 00 02 11.9253149232 -30 15 02.916293472   10.36 10.00     F3V 17 0
10 * zet Scl SB* 00 02 19.9270625208 -29 43 13.588516668 4.29 4.879 5.022     B5IV 139 0
11 CD-29 18938 SB* 00 02 39.2420794248 -29 04 30.870087708   10.59 10.25     F2V 34 0
12 HD 225048 * 00 02 52.6395737808 -31 21 31.052437704   9.76 8.67     K1II/III 7 0
13 HD 225047 * 00 02 55.2273984408 -30 08 59.183837916   8.45 8.42     A0V 58 0
14 Cl Blanco 1 OpC 00 03 04.1 -29 48 55           ~ 380 0
15 HD 225077 SB* 00 03 12.7340089848 -31 12 44.585839692   8.93 8.88     A0V 39 0
16 CD-31 19572 * 00 03 14.9631858840 -30 18 32.303097288   10.74 10.29     F1-5IV 16 0
17 CD-30 19799 SB* 00 03 16.0295712504 -29 20 00.516092316   11.272 10.675     G0 13 0
18 CD-30 19800 Er* 00 03 20.6140352856 -29 49 22.753595676   11.75 11.23     F8 46 0
19 CD-30 19801 SB* 00 03 21.8528903616 -30 01 10.528822956   10.75 10.36     F3V 28 0
20 CD-30 19802 * 00 03 24.3910794816 -29 48 49.446597744   11.07 10.56     F8V 44 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 47 0
23 HD 225111 SB* 00 03 31.8883550808 -29 43 04.772702388   10.512 10.133     A5/7(III) 45 0
24 CD-30 19804 PM* 00 03 32.2901913408 -29 44 00.283411068   11.0 10.28     G6IV 8 0
25 CD-31 19576 * 00 03 33.5987668368 -30 28 41.958278292   10.99 10.61     F4-6V 29 0
26 HD 225119 SB* 00 03 37.0980677520 -28 25 01.690509684   8.07 8.18     ApSi 52 0
27 HD 225155 SB* 00 03 53.3711219208 -28 23 37.707416664   8.37 7.64     G5IV 45 0
28 HD 225187 * 00 04 11.9007705216 -30 08 05.679965328   6.986 7.074     B8V 50 0
29 CD-30 19812 * 00 04 18.7457656752 -29 49 32.509726932   10.93 10.46     F6V 17 0
30 HD 225200 * 00 04 20.3171235888 -29 16 07.760291052   6.40 6.39     A1V 77 0
31 HD 225206 * 00 04 22.9073402736 -29 22 53.658124932   7.71 7.74     B8/9V 74 0
32 CD-30 19815 * 00 04 33.1684162920 -29 38 28.042627740   11.576 11.055     F6-8 40 0
33 HD 225247 * 00 04 44.2812737160 -27 15 36.313160616   9.938 9.599     F0V 10 0
34 HD 225264 SB* 00 04 50.8236837768 -29 37 58.940860980   8.28 8.28     A0IV 80 0
35 HD 225282 * 00 04 53.3313519624 -30 15 23.784834240   8.34 8.29     A0IV/V 56 0
36 HD 50 SB* 00 05 26.7564621576 -30 17 24.468604872   9.99 9.68     A9V 43 0
37 HD 91 * 00 05 42.9570193392 -29 57 38.258320932   10.24 9.99     A9/F0V 58 0
38 HD 104 * 00 05 54.7320340224 -30 21 39.279878496   8.98 7.99     K0III 19 0
39 HD 117 * 00 05 57.0082360584 -30 19 42.135905352   9.65 9.19     F2V 20 0
40 HD 141 * 00 06 09.0765064992 -29 09 04.981660128   7.88 7.92     B9V 54 0
41 HD 212 * 00 06 55.7574800592 -30 36 11.092682844   10.52 10.27     F2/3V 41 0
42 HD 235 * 00 07 07.8069330144 -30 33 41.643803628   8.72 8.66     A1V 49 0
43 HD 343 * 00 08 01.9009289496 -30 01 54.059882088   10.01 9.71     A8/9V 55 0
44 HD 394 * 00 08 27.1130793960 -30 04 06.967450272   10.00 9.47     F8/GIII/IV+F 28 0
45 CD-30 14 * 00 08 31.8778453464 -29 43 32.883693240   11.19 9.82     F5V~ 6 0
46 * kap01 Scl ** 00 09 21.06696 -27 59 16.5322       6.54   F3V 58 0
47 HD 506 * 00 09 29.2588969104 -31 30 31.423387572   10.175 9.793     F2IV 13 0
48 CD-31 28 * 00 09 37.9640048304 -30 36 50.227427628   11.044 10.023     ~ 9 0
49 * kap02 Scl * 00 11 34.4207187216 -27 47 58.990819164   6.756 5.404     K2III 51 0
50 HD 923 dS* 00 13 34.0045890648 -29 34 32.491628616   8.74 8.55     A5IV 34 0
51 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
52 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
53 HD 223158 * 23 47 14.5800900672 -30 26 10.383983628   9.20 9.14     A0V 13 0
54 CD-32 17669 * 23 47 21.4045293888 -31 21 08.654245632   10.67 9.66     K0 3 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)) 149 0
56 HD 223934 * 23 53 44.2029089736 -29 23 47.689673928   8.99 7.43     M0III 17 0
57 HD 223991A SB* 23 54 21.4064107302 -27 02 34.465411699   6.887 6.779     kA2hA2VmA4 59 0
58 HD 224066 * 23 54 50.1852666672 -31 21 48.861213768   10.45 10.05     F3V 4 0
59 V* AL Scl SB* 23 55 16.5873603912 -31 55 17.320846548 5.57 5.981 6.076     B5/8 123 0
60 HD 224112 * 23 55 16.6896570888 -31 53 03.373074852   6.734 6.816     B8V 63 0
61 HD 224350 PM* 23 57 08.1585728304 -26 37 24.396531492   7.699 6.249     K3III 19 0
62 CD-30 19753 * 23 57 38.9185234368 -29 50 06.459960804   10.67 10.24     F5 30 0
63 CD-30 19758 * 23 58 20.1035600280 -30 16 51.492914760   10.40 10.06     F0 30 0
64 HD 224515 * 23 58 33.6752300424 -29 12 37.196888796   9.52 8.40     K1III 15 0
65 HD 224536 PM* 23 58 41.6062074168 -29 30 10.054083348   9.54 9.09     F3V 8 0
66 CD-32 17753 * 23 58 48.7229312040 -31 28 47.325433584   9.50 8.48     K0 12 0
67 HD 224553 * 23 58 50.2086367872 -27 46 33.396621816   9.13 8.06     K0III 8 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 32 0
70 HD 224642 * 23 59 34.6130824512 -31 41 17.794135968   7.89 7.54     F2V 23 0
71 HD 224663 * 23 59 44.6645697600 -32 12 38.598225660   9.14 8.25     G8IV 14 0
72 NAME Gould Belt PoG ~ ~           ~ 956 1

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