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

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

2003A&A...402..587S - Astronomy and Astrophysics, volume 402587-605 (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 - 2026 		#notes
1 * 26 And * 00 18 42.1688838792 +43 47 28.108208148   6.03 6.11     B8V 66 0
2 * zet Cas bC? 00 36 58.2844874846 +53 53 48.877599163 2.58 3.47 3.66 3.74 3.95 B2IV 470 0
3 * 4 Ari PM* 01 48 10.9236879288 +16 57 19.857503880   5.809 5.841     B9.5V 85 0
4 * pi. Cet SB* 02 44 07.3477594066 -13 51 31.279407049 3.66 4.112 4.236     B8IV 349 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     ~ 21 0
7 HD 19567 * 03 10 06.3025044792 +38 20 43.886933304   7.66 7.61     B9 20 0
8 HD 20113 * 03 15 16.9763212920 +36 28 33.008261340   7.88 7.64     B8 15 0
9 HD 20987 * 03 24 44.8988681112 +40 45 39.119316840   7.85 7.94     B9 23 0
10 HD 21483 * 03 28 46.6537212648 +30 22 31.231016796 7.080 7.390 7.070     B3III 155 0
11 HD 21856 Pu* 03 32 40.0150232424 +35 27 42.207495156 4.96 5.807 5.900     B1V 192 0
12 V* V496 Per a2* 03 35 11.8739551752 +38 00 54.603280728   7.65 7.58     B8Vp 41 1
13 HD 278942 ** 03 39 55.6857090240 +31 55 33.189519540   10.25 9.15     O9.5-B0 57 1
14 Ass Per OB 2 As* 03 42.2 +33 26           ~ 350 0
15 * o Per * 03 42 22.6459308614 +33 57 54.093701142 4.13 4.912 4.972     B0.5V 315 0
16 HD 23060 * 03 43 24.0091284000 +34 06 58.498706844 7.02 7.59 7.48     B2Vp 87 0
17 * omi Per SB* 03 44 19.1337687984 +32 17 17.687367960 3.13 3.91 3.91 3.71 3.71 B1III 628 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 234 0
19 HD 23268 * 03 44 51.2599184208 +30 08 08.598647112   8.30 8.23     A0 18 0
20 * 20 Tau PM* 03 45 49.6081548365 +24 22 03.877565838 3.40 3.80 3.87 3.85 3.90 B7III 451 1
21 HD 23478 Be* 03 46 40.8712236312 +32 17 24.675566784 6.17 6.708 6.671     B3IV 168 0
22 HD 23597 * 03 47 25.6698913008 +29 52 32.808630972   8.25 8.22     B8 28 0
23 HD 23625 SB* 03 47 52.6647098784 +33 35 59.538731964 6.01 6.674 6.653     B3V+B8.5V 135 0
24 HD 23802 ** 03 49 07.3006279 +32 15 51.373504 7.27 7.61 7.44 7.39   B9 40 0
25 HD 24012 * 03 50 51.2941205232 +35 05 59.167931028   7.83 7.83     B9 22 0
26 HD 24131 * 03 51 53.7187356648 +34 21 32.823349956 4.96 5.730 5.772     B1V 183 0
27 HD 24190 SB* 03 52 18.9579628248 +34 13 19.612811028 6.84 7.46 7.45     B2V 106 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 881 0
29 V* X Per HXB 03 55 23.0777456088 +31 02 45.039836148 6.090 6.840 6.720     O9.5III 1037 0
30 HD 24583 * 03 55 52.8874763928 +34 32 42.180063252   9.05 9.00     A0 27 0
31 HD 24640 Ce* 03 56 28.6917914309 +35 04 51.215445412 4.7 5.426 5.488     B1.5V 138 1
32 HD 24970 * 03 59 05.4518967264 +27 11 50.806023792 7.640 7.600 7.460     A0 20 0
33 HD 25539 * 04 04 43.0693568832 +32 34 16.335073668   6.864 6.870     B 85 0
34 V* V490 Per SB* 04 06 39.0433582368 +32 23 06.211533840   7.11 7.0     B3V 88 0
35 HD 25833A SB* 04 06 55.8286148575 +33 26 46.929071509   6.83 6.87     ~ 264 0
36 HD 25833 ** 04 06 55.8351101323 +33 26 47.009585515       7.71   B3Vn 269 0
37 HD 26499 * 04 12 45.1706593896 +31 47 41.054312004   9.23 9.09     B9/A0 22 0
38 * mu. Tau * 04 15 32.0568707393 +08 53 32.491567629 3.74 4.205 4.279     B3IV 160 0
39 * chi Tau * 04 22 34.9437170088 +25 37 45.537575448   5.344 5.378     B9Vnn 111 0
40 HD 28114 bC* 04 26 21.1022491080 +08 35 24.952062192 5.65 6.046 6.055     B6IV 84 1
41 * o Tau * 05 27 38.0841633883 +21 56 13.085083102 3.98 4.719 4.868     B2.5V 168 0
42 * 32 Ori ** 05 30 47.05091 +05 56 53.2925 3.51 4.07 4.20 4.26 4.40 B5IV+B7V 205 0
43 * 134 Tau * 05 49 32.9303335271 +12 39 04.760685507 4.68 4.811 4.875     B9V 208 0
44 HD 43112 * 06 15 08.4727512648 +13 51 03.959285616 4.7 5.676 5.894     B1V 126 0
45 * 21 Lyn PM* 07 26 42.8522129445 +49 12 41.497452754   4.594 4.610     A0.5Vs 121 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) 139 0
47 HD 196821 V* 20 39 10.6488328200 +21 49 02.792407836   6.027 6.075     A0III 59 0
48 HD 201345 * 21 07 55.4150161776 +33 23 49.228548972   7.611 7.764     ON9.2IV 186 0
49 * omi Peg * 22 41 45.4041684504 +29 18 27.631023336 4.77 4.78 4.79 4.75 4.77 A1IV 296 0
50 HD 217811 V* 23 02 45.1478611209 +44 03 31.498436363 5.8 6.38 6.42     B2V 85 1
51 HD 219188 * 23 14 00.5157239400 +04 59 49.566134112   6.90 7.06     K0III 169 0
52 * 67 Peg * 23 24 50.8325128824 +32 23 05.570367648 5.22 5.470 5.548     B9III 71 0

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