2023AstBu..78...36R

Query : 2023AstBu..78...36R

2023AstBu..78...36R - Astrophys. Bull., 78, 36-48 (2023/January-0)

Magnetic Stars in Clusters of Different Ages. I. The Pleiades Open Cluster and the Pleiades Kinematic Group.

ROMANYUK I.I., MOISEEVA A.V., YAKUNIN I.A., AITOV V.N. and SEMENKO E.A.

Abstract (from CDS):

The paper presents the results of searching and studying magnetic fields of 4 chemically peculiar stars in the Pleiades open cluster and 21 CP stars in the kinematic group of the same name. Observations were carried out at the 6-m BTA SAO RAS telescope with a circular polarization analyzer. Four stars with anomalously strong silicon lines were previously specified in the Pleiades cluster. We did not find a magnetic field in any of them. The Pleiades group contains seven non-magnetic HgMn stars and 14 potentially magnetic Ap/Bp stars of various types. We detected or confirmed magnetic fields in eight objects. The fraction of magnetic CP stars is 57 % relative to Ap/Bp. Not a single object was found in the group, in which the longitudinal magnetic field Be would exceed 2 kG.

Abstract Copyright: ∼

Journal keyword(s): stars: chemically peculiar - stars: magnetic fields

Simbad objects: 25

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Number of rows : 25
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 * alf And a2* 00 08 23.25988 +29 05 25.5520 1.48 1.95 2.06 2.09 2.19 B8IV-VHgMn 479 1
2 * gam02 Ari PM* 01 53 31.8129284424 +19 17 37.879979172   4.49 4.52     A2IVpSiSrCr 162 0
3 * eps Cas Be* 01 54 23.7340861680 +63 40 12.360238788 2.61 3.22 3.37 3.40 3.52 B3Vp_sh 207 0
4 * ome Cas SB* 01 56 00.0283006680 +68 41 06.863913852   4.874 4.968     B5III 97 0
5 * 63 And a2* 02 20 58.2015432888 +50 09 05.385224196   5.46 5.59     B9VpSi 118 0
6 HD 23387 ** 03 45 37.7883282408 +24 20 08.303093844   7.33 7.19   6.96 A1V 131 0
7 V* V1229 Tau SB* 03 47 29.4536404848 +24 17 18.019635504   6.87 6.81   6.74 A0VpSi+Am 225 0
8 HD 23950 * 03 49 55.0695142800 +22 14 38.936066064   6.046 6.070     B8III 121 0
9 HD 23964A SB* 03 49 58.0556899152 +23 50 55.288075236   6.82 6.81 6.3 6.74 B9.5VspSiSrCr 167 0
10 * 41 Tau a2* 04 06 36.4125948768 +27 35 59.640149616   5.041 5.172     Ap 249 0
11 * 56 Tau a2* 04 19 36.7048893816 +21 46 24.566827836   5.231 5.346     A0VpSi 193 0
12 * 11 Ori a2* 05 04 34.1491891634 +15 24 14.767720310   4.609 4.661     A1VpSiCr 156 0
13 * mu. Lep a2* 05 12 55.9029641016 -16 12 19.668599100 2.78 3.18 3.29 3.30 3.42 B9IV:HgMn 294 1
14 * b Cnc a2* 08 44 45.0357084768 +10 04 54.007285728 5.30 5.55 5.66     A1VpHgMnSiEu 190 0
15 * 14 Hya a2* 08 49 21.7258429872 -03 26 34.891438308 4.87 5.22 5.31     B8IIIpHgMn 154 0
16 HD 107612 PM* 12 22 02.0739290184 +16 44 41.001067356   6.721 6.663     A2p 75 0
17 * iot CrB SB* 16 01 26.5649192496 +29 51 03.819408336   4.921 4.971     A0IIIspHgMnEu 275 0
18 * c Dra SB* 18 42 37.9596158552 +55 32 22.007313973   4.94 5.02     A0IIIpHgMn 196 0
19 * 112 Her SB* 18 52 16.4279808528 +21 25 30.512193132 4.83 5.304 5.393     B9pHg 207 0
20 V* V828 Her a2* 18 56 03.7995461256 +17 59 43.216496628 6.15 6.59 6.63     B8pSi 93 0
21 * 64 Ser Be* 18 57 16.5900397800 +02 32 07.245780324 5.29 5.545 5.551     B8/9II 114 0
22 HD 183339 Pu* 19 25 46.7645404704 +58 01 38.356203360 5.88 6.450 6.594     B7IV 95 0
23 HD 184961 * 19 36 08.3511576408 +22 35 08.744220600   6.267 6.319     B9IVpSi 72 0
24 * 14 Sge SB* 20 03 30.0147595968 +16 01 52.508306604 5.39 5.550 5.658     B9pHgMn 141 0
25 * kap Psc a2* 23 26 55.9558721856 +01 15 20.177913204 4.94 4.98 4.94 4.87 4.90 A2VpSrCrSi 290 0

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