2003A&A...402..587S

Query : 2003A&A...402..587S

2003A&A...402..587S - Astronomy and Astrophysics, volume 402, 587-605 (2003/5-1)

Radial velocities of early-type stars in the Perseus OB2 association.

STEENBRUGGE K.C., DE BRUIJNE J.H.J., HOOGERWERF R. and DE ZEEUW P.T.

Abstract (from CDS):

We present radial velocities for 29 B- and A-type stars in the field of the nearby association Perseus OB2. The velocities are derived from spectra obtained with AURELIE, via cross correlation with radial velocity standards matched as closely as possible in spectral type. The resulting accuracy is ∼2-3km/s. We use these measurements, together with published values for a few other early-type stars, to study membership of the association. The mean radial velocity (and measured velocity dispersion) of Per OB2 is 23.5 ±3.9km/s, and lies ∼15km/s away from the mean velocity of the local disk field stars. We identify a number of interlopers in the list of possible late-B- and A-type members which was based on Hipparcos parallaxes and proper motions, and discuss the colour-magnitude diagram of the association.

Abstract Copyright: ∼

Journal keyword(s): stars: early-type - stars: binaries: spectroscopic - stars: kinematics - stars: rotation - techniques: radial velocities - open clusters and associations: individual: Perseus OB2

Simbad objects: 52

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Number of rows : 52
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 * 26 And * 00 18 42.1688838792 +43 47 28.108208148   6.03 6.11     B8V 62 0
2 * zet Cas bC? 00 36 58.2844874846 +53 53 48.877599163 2.58 3.47 3.66 3.74 3.95 B2IV 453 0
3 * 4 Ari PM* 01 48 10.9236879288 +16 57 19.857503880   5.809 5.841     B9.5V 79 0
4 * pi. Cet SB* 02 44 07.3477594066 -13 51 31.279407049 3.66 4.112 4.236     B7IV 332 0
5 HD 18830 ** 03 03 11.2760816712 +41 20 06.511810200   8.43 8.35     A0 17 0
6 V* V383 Per a2* 03 06 32.1970241784 +33 37 30.910543680   7.84 7.84     ~ 20 0
7 HD 19567 * 03 10 06.3025044792 +38 20 43.886933304   7.66 7.61     B9 17 0
8 HD 20113 * 03 15 16.9763212920 +36 28 33.008261340   7.88 7.64     B8 14 0
9 HD 20987 * 03 24 44.8988681112 +40 45 39.119316840   7.85 7.94     B9 20 1
10 HD 21483 * 03 28 46.6537212648 +30 22 31.231016796 7.080 7.390 7.070     B3III 147 0
11 HD 21856 Pu* 03 32 40.0150232424 +35 27 42.207495156 4.96 5.807 5.900     B1V 184 0
12 V* V496 Per a2* 03 35 11.8739551752 +38 00 54.603280728   7.65 7.58     B8Vp 36 1
13 HD 278942 ** 03 39 55.6857090240 +31 55 33.189519540   10.25 9.15     O9.5-B0 53 1
14 Ass Per OB 2 As* 03 42.2 +33 26           ~ 338 0
15 * o Per * 03 42 22.6459308614 +33 57 54.093701142 4.13 4.912 4.972     B0.5V 299 0
16 HD 23060 * 03 43 24.0091284000 +34 06 58.498706844 7.02 7.59 7.48     B2Vp 82 0
17 * omi Per ** 03 44 19.13204 +32 17 17.6929 3.13 3.88 3.83 3.71 3.71 B1III 605 0
18 HD 281159 Y*O 03 44 34.1873929 +32 09 46.137563 9.19 9.21 8.53 8.85 7.850 B5V 224 0
19 HD 23268 * 03 44 51.2599184208 +30 08 08.598647112   8.30 8.23     A0 17 0
20 * 20 Tau PM* 03 45 49.6081548365 +24 22 03.877565838 3.40 3.80 3.87 3.85 3.90 B8III 434 1
21 HD 23478 Be* 03 46 40.8712236312 +32 17 24.675566784 6.17 6.708 6.671     B3IV 153 0
22 HD 23597 * 03 47 25.6698913008 +29 52 32.808630972   8.25 8.22     B8 22 0
23 HD 23625 SB* 03 47 52.6647098784 +33 35 59.538731964 6.01 6.674 6.653     B3V+B8.5V 128 0
24 HD 23802 ** 03 49 07.3006279 +32 15 51.373504 7.27 7.61 7.44 7.39   B9 37 0
25 HD 24012 * 03 50 51.2941205232 +35 05 59.167931028   7.83 7.83     B9 19 0
26 HD 24131 * 03 51 53.7187356648 +34 21 32.823349956 4.96 5.730 5.772     B1V 172 0
27 HD 24190 SB* 03 52 18.9579628248 +34 13 19.612811028 6.84 7.46 7.45     B2V 96 0
28 * zet Per s*b 03 54 07.9224751 +31 53 01.081262 2.19 2.97 2.85 2.71 2.62 B1Ib 856 0
29 V* X Per HXB 03 55 23.0777456088 +31 02 45.039836148 6.090 6.840 6.720     O9.5III 976 0
30 HD 24583 * 03 55 52.8874763928 +34 32 42.180063252   9.05 9.00     A0 23 0
31 HD 24640 Ce* 03 56 28.6917914309 +35 04 51.215445412 4.7 5.426 5.488     B1.5V 133 1
32 HD 24970 * 03 59 05.4518967264 +27 11 50.806023792 7.640 7.600 7.460     A0 19 0
33 HD 25539 * 04 04 43.0693568832 +32 34 16.335073668   6.864 6.870     B 79 0
34 V* V490 Per EB* 04 06 39.0433582368 +32 23 06.211533840   7.11 7.0     B3V 82 0
35 HD 25833A EB* 04 06 55.8286148575 +33 26 46.929071509   6.83 6.87     ~ 260 0
36 HD 25833 ** 04 06 55.8351101323 +33 26 47.009585515       7.71   B3Vn 267 0
37 HD 26499 * 04 12 45.1706593896 +31 47 41.054312004   9.23 9.09     B9/A0 17 0
38 * mu. Tau * 04 15 32.0568707393 +08 53 32.491567629 3.74 4.205 4.279     B3IV 149 0
39 * chi Tau SB* 04 22 34.9437170088 +25 37 45.537575448   5.344 5.378     B9Vnn 106 0
40 HD 28114 bC* 04 26 21.1022491080 +08 35 24.952062192 5.65 6.046 6.055     B6IV 77 1
41 * o Tau * 05 27 38.0841633883 +21 56 13.085083102 3.98 4.719 4.868     B2.5V 160 0
42 * 32 Ori ** 05 30 47.05091 +05 56 53.2925 3.51 4.07 4.20 4.26 4.40 B5IV+B7V 190 0
43 * 134 Tau * 05 49 32.9303335271 +12 39 04.760685507 4.68 4.811 4.875     B9IV 197 0
44 HD 43112 * 06 15 08.4727512648 +13 51 03.959285616 4.7 5.676 5.894     B1V 118 0
45 * 21 Lyn PM* 07 26 42.8522129445 +49 12 41.497452754   4.594 4.610     A0.5Vs 114 0
46 * 29 Vul PM* 20 38 31.3388452704 +21 12 04.185221724 4.73 4.80 4.82 4.79 4.83 A0Va(_sh) 131 0
47 HD 196821 V* 20 39 10.6488328200 +21 49 02.792407836   6.027 6.075     A0III 57 0
48 HD 201345 * 21 07 55.4150161776 +33 23 49.228548972   7.611 7.764     ON9.2IV 174 0
49 * omi Peg * 22 41 45.4041684504 +29 18 27.631023336 4.77 4.78 4.79 4.75 4.77 A1IV 282 0
50 HD 217811 V* 23 02 45.1478611209 +44 03 31.498436363 5.8 6.38 6.42     B2V 82 1
51 HD 219188 * 23 14 00.5157239400 +04 59 49.566134112   6.90 7.06     K0III 162 0
52 * 67 Peg * 23 24 50.8325128824 +32 23 05.570367648 5.22 5.470 5.548     B9III 68 0

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