2006MNRAS.372.1804K

Query : 2006MNRAS.372.1804K

2006MNRAS.372.1804K - Mon. Not. R. Astron. Soc., 372, 1804-1828 (2006/November-2)

New magnetic chemically peculiar stars.

KUDRYAVTSEV D.O., ROMANYUK I.I., ELKIN V.G. and PAUNZEN E.

Abstract (from CDS):

Spectropolarimetric observations of 96 chemically peculiar (CP) main-sequence stars have been carried out at the 6-m telescope at the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) with the aim of searching for the presence of stellar magnetic fields. The stars selected for investigation were CP stars known to have strong anomalies in the wavelength region of the continuum flux depression around λ 5200Å. This selection was conducted with the aid of low-resolution spectral observations, made with the SAO RAS 1-m telescope, and of published differential photometric data. Magnetic fields have been successfully detected in 72 stars of which only three stars were previously known to have magnetic fields. For two stars, the longitudinal component of the magnetic field Beexceeds 5 kG: HD178892 - 7.4 kG, and HD258686 - 6.7 kG. We failed to reliably detect the magnetic field in the other 24 CP stars. These stars are mostly fast rotators, a feature which hampers accurate measurements of Be. It is demonstrated in this paper that selecting candidate magnetic stars by considering their photometric indices Z or Δa, or alternatively, by inspecting low-resolution spectra around the λ5200Å flux depression, considerably increases the detection rate.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

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

VizieR on-line data: <Available at CDS (J/MNRAS/372/1804): sources.dat table3.dat>

CDS comments: In Chap. 3 : HD 209665 is a misprint for HD 290665.

Simbad objects: 129

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Number of rows : 129
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 * 4 Cet V* 00 07 44.1111674208 -02 32 55.248548028 5.82 6.29 6.43     ApSi 93 0
2 HD 1677 * 00 21 09.2259593160 +35 52 43.776624612   7.600 7.358     A0 27 0
3 HD 2957 a2* 00 32 44.0827348344 -13 29 13.458487488   8.527 8.49     ApCrEu 45 0
4 HD 3473 Pu* 00 38 07.6940064096 +51 27 29.624896296   8.99 9.04     kA2pSiMg(e:) 28 0
5 HD 4478 Pu* 00 47 19.9088744640 +45 17 41.577587376   9.02 9.02     ~ 28 0
6 V* BC Cet a2* 00 57 32.5147526784 -10 28 32.790510984   7.59 7.63     ApSi 50 0
7 HD 6164 * 01 02 49.3688506008 +07 30 02.763258948   7.82 7.82     A0III/IV 46 0
8 HD 6757 ** 01 08 53.14665 +45 12 26.8099           ~ 41 0
9 HD 8855 * 01 28 05.6640525096 +43 52 38.847852408   8.11 8.17     A1p 47 0
10 HD 9147 Pe* 01 30 55.8825238824 +45 21 55.776950208   9.45 9.34     A0IV-VSrSi 22 0
11 BD+46 570 * 02 26 59.7142616928 +46 49 18.202874160   10.11 9.63     ~ 15 0
12 HD 16605 * 02 40 58.9394814960 +42 52 16.597055784   9.68 9.63     A1pSiCrSr 54 0
13 NGC 1039 OpC 02 42 09.1 +42 44 02           ~ 467 0
14 BD+42 659 Pu* 02 57 10.6266694944 +43 04 43.803973272   10.14 9.72     ~ 10 0
15 V* EE Eri a2* 03 10 18.0933103728 -01 41 40.967322324   7.32 7.35     B9V 69 0
16 * alf Per V* 03 24 19.3700924 +49 51 40.245455 2.64 2.27 1.79     F5Ib 870 1
17 HD 22238 * 03 41 44.6464473792 +75 08 32.325147240   10.24 10.04     A0 5 0
18 V* V1140 Tau a2* 04 20 37.7861065824 +28 53 31.244361108   8.18 7.92     B9/A0 69 0
19 HD 27505 PM* 04 20 49.0727791536 +09 13 29.394785496   6.68 6.53     A4V 34 0
20 * alf Tau LP? 04 35 55.23907 +16 30 33.4885 4.32 2.40 0.86 -0.37 -1.31 K5+III 1298 2
21 HD 29925 * 04 43 00.3775893048 +01 06 28.373407848   8.24 8.33     ApSi 36 0
22 NGC 1662 OpC 04 48 48.5 +10 52 46   7.0 6.4     ~ 149 0
23 HD 30598 Pu* 04 49 26.6631788328 +10 59 18.226855284   9.41 9.13     A1V 46 0
24 HD 31362 * 04 56 15.5776069800 +24 35 31.985894760   6.664 6.324     F0 50 0
25 V* V1360 Ori a2* 05 01 06.0227313288 +03 43 02.356859388   7.11 7.24     B8II 45 0
26 HD 293764 * 05 03 34.5788531616 -02 58 45.992797788   9.62 9.56     ~ 27 0
27 V* HZ Aur a2* 05 06 08.3584818960 +33 55 07.279039380   7.03 7.07     B9p 194 0
28 HD 34162 * 05 15 31.2769201800 +05 45 35.021776680   8.92 8.69     ~ 26 0
29 HD 34427 * 05 17 38.9549711304 +07 09 02.970208944   8.75 8.73     ~ 18 0
30 V* V1159 Tau a2* 05 20 18.2955595104 +19 34 41.615749416 6.290 6.650 6.680     A0p 65 0
31 HD 36955 ** 05 35 04.5447943896 -01 24 06.593591448   9.66 9.58     A7VpSrEu 57 0
32 HD 290665 * 05 35 10.5066304368 -00 50 12.984148392   9.54 9.44     B9 46 0
33 Cl Collinder 70 OpC 05 35 30 -01 06.0           ~ 65 0
34 HD 36907 * 05 36 53.6485864512 +41 16 19.956946224   8.65 8.47     A0 6 0
35 NAME Ori I As* 05 38 -02.8           ~ 653 0
36 V* V1054 Ori a2* 05 48 25.5041382456 -00 45 34.610849136   7.69       ApSrEuCr 71 0
37 HD 39082 a2* 05 50 23.8509696576 +04 57 24.272149104   7.44 7.42     ApEuCrSr 51 0
38 HD 39658 * 05 57 14.6715252984 +54 45 17.743050180   8.89 8.73     A0 20 0
39 HD 40759 Pe* 06 00 45.7307083176 -03 53 44.405990988   9.265 9.339 9.369   A0IVSi 48 0
40 HD 40711 SB* 06 01 01.2946494792 +10 24 05.415878916   8.76 8.57     ApSrCrEu 41 0
41 HD 41403 * 06 05 02.2361831808 +02 06 37.100770488   7.68 7.63     ApEuCr 36 0
42 V* V1155 Ori a2* 06 19 01.8426917616 +17 19 30.943758540 5.95 6.25 6.32     B9IIIpSi(Cr) 152 0
43 HD 44456 a2* 06 21 55.4219321112 +00 18 15.161721048   8.53 8.52     ApSiSr 34 0
44 HD 44636 * 06 23 25.3116257448 +15 50 43.759116312   8.98 9.00     B9p 27 0
45 HD 45107 * 06 25 35.7243941400 +01 08 30.938129232   9.00 9.02     ApSiCr 13 0
46 NGC 2232 OpC 06 27 45.6 -04 44 26           ~ 212 0
47 V* V682 Mon a2* 06 28 10.7659506576 -04 53 56.511231684   7.85 7.97     ApSi 100 0
48 HD 45530A a2* 06 28 13.9590789408 +05 16 20.115418044   7.556 7.603 8.69   A0IIIpSiSr 54 0
49 HD 258686 ** 06 30 47.05574 +10 03 46.4308 8.62 9.06 9.12 9.328   A0IIIp_sh? 53 0
50 IC 2169 HII 06 31 +10.1   7.7       ~ 20 1
51 Cl Collinder 95 OpC 06 31 06.8 +09 54 24           ~ 54 0
52 NGC 2244 OpC 06 32 06.9 +04 54 19           ~ 673 1
53 NGC 2244 334 Y*O 06 32 51.7919732079 +04 47 16.160568228 13.17 13.38 12.95 12.46 12.34 B5V 48 0
54 HD 261586 * 06 39 53.5866155304 +09 22 13.947787452   10.63 10.4     ~ 25 0
55 HD 47756 * 06 40 31.9464201288 +06 22 16.506295536 5.91 6.358 6.498     B8pSiCrSr 77 0
56 NGC 2264 OpC 06 40 53.7 +09 52 32           ~ 1876 0
57 HD 49223 * 06 47 47.7692439864 +07 19 34.141709460   9.02 9.02     ~ 13 0
58 NGC 2281 OpC 06 48 19.7 +41 02 35   6.05 5.4     ~ 182 0
59 HD 49040 * 06 48 22.1170459680 +40 57 45.089870184   8.94 8.82     B9pSr 47 0
60 HD 49098 * 06 48 40.8500255016 +41 03 59.387783796   8.80 8.59     A3III 29 0
61 V* V740 Mon a2* 06 49 44.2890454344 -01 20 23.757601308   7.24 7.30     B9III 51 0
62 HD 50403 Pe* 06 54 03.6319037040 +22 15 45.164258784   9.53 9.27     A3III-IVSrSiEu 20 0
63 HD 53081 a2* 07 04 03.8295774888 +08 41 07.359925560   9.65 9.73     A1V 16 0
64 HD 60489 SB* 07 34 46.2099221256 +02 43 31.776855600   6.765 6.536     A5/7(m)A5-F0 51 0
65 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1925 0
66 * 53 Cam a2* 08 01 42.4403874648 +60 19 27.806833200   6.177 6.008     A3VpSrSiCrEu 410 0
67 HD 66350 Pe* 08 03 01.2185760864 -02 43 49.807306020   8.66 8.67     ApEuCr(Sr) 32 0
68 HD 68703 * 08 14 11.1399926448 +17 40 33.435869952   6.771 6.470     F1IV 55 0
69 HD 86170 Pe* 09 56 45.1797591816 -02 17 20.449300200   8.58 8.41     A1IV-VSrSiEu 33 0
70 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
71 HD 107612 PM* 12 22 02.0739290184 +16 44 41.001067356   6.721 6.663     A2p 75 0
72 * 14 Com * 12 26 24.0644226936 +27 16 05.659806648 5.40 5.22 4.95 4.70 4.55 F1IV:npS_sh 167 0
73 HD 112528 a2* 12 57 35.3157391344 -19 45 01.674889956   8.58 8.25     ApSrEu(Cr) 40 0
74 HD 115606 * 13 18 02.4609064584 +13 00 00.462136140 8.970 8.860 8.550     kA2hA7mF0(IV)EuSr 39 0
75 * o Vir a2* 13 34 07.9312445507 +03 39 32.288960317 4.96 4.96 4.94 4.86 4.89 ApEuCrSr 356 0
76 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2417 1
77 V* LV Ser a2* 15 11 34.3636106712 +08 31 01.409246868   7.68 7.54     A3p 80 0
78 HD 138218 * 15 30 49.6476335352 -05 48 20.098794384   10.02 9.80     A3/5II 21 0
79 HD 141461 ** 15 49 17.8368391510 -04 57 41.328085513           ApSi 30 0
80 HD 142554 a2* 15 55 22.3416848760 -04 28 34.636200564   9.973 9.766 9.73 9.433 ApSiCr 29 0
81 V* LL Lup a2* 16 01 58.8643741128 -37 32 03.725218680   7.48 7.41     ApSi 77 0
82 V* V773 Her a2* 16 36 42.9385265832 +15 29 50.827223688   6.296 6.355     A2VpSiSrCr 114 0
83 HD 151199 PM* 16 42 58.4585883288 +55 41 24.433991268   6.249 6.172     A2VpSr 105 0
84 * 52 Her a2* 16 49 14.21821 +45 58 59.9620   4.914 4.823     A1VpSiSrCr 267 0
85 * 49 Her a2* 16 52 04.8506450664 +14 58 27.171504300   6.473 6.488     B9.5pSiCr 94 0
86 BD+32 2827 Pe* 16 59 23.4534964512 +32 27 08.827936920   10.15 9.87     A6VSrSiEu 13 0
87 HD 154708 a2* 17 10 28.5163457616 -58 00 17.416695708   9.23 8.76     ApSrEu 91 0
88 HD 158352 PM* 17 28 49.6547862288 +00 19 50.249640432   5.644 5.412     A8Vp 135 0
89 HD 158450 ** 17 29 43.9848254928 -08 01 03.169337592   8.91 8.55     ApSi(Cr) 42 0
90 HD 159545 * 17 35 31.3164991848 -02 53 30.183637488   7.89 7.75     B8II 35 0
91 HD 164827 * 18 03 01.2424597008 -00 27 21.205301148   9.51 9.33     B9V 15 0
92 HD 168796 * 18 21 02.5611785280 +13 49 00.602915880   8.00 7.88     ~ 25 0
93 HD 169887 Pu* 18 25 44.2232420191 +26 39 25.053023415   9.03 9.01     ApSi 18 0
94 HD 169842 * 18 26 22.2866497368 +06 51 25.638603336   9.33 9.14     A5VkA1pSrEuCr 49 0
95 NGC 6633 OpC 18 27 30.2 +06 38 21           ~ 423 0
96 HD 170565 Pe* 18 30 08.2792427952 -02 35 27.303527040   9.54 9.12     A5pSrEuCrSi 34 0
97 IC 4725 OpC 18 31 47.5 -19 07 37           ~ 239 0
98 HD 170973 a2* 18 32 06.8865165216 +03 39 34.601753412   6.381 6.407     B9IIIpSi 133 0
99 HD 170836 Ro* 18 32 12.2960813736 -19 16 32.636206308 9.03 9.26 8.95     B8II 50 0
100 BD+17 3622 Pu* 18 32 51.5677300584 +17 18 12.441452904   8.93 8.83     ~ 20 0
101 HD 349321 ** 18 48 40.4445138168 +20 53 10.090824144   9.30 9.34     ApSi 21 0
102 HD 178892 Pu* 19 09 54.7518733248 +14 57 58.348940148   9.27 8.94     ApSrCrEu 55 0
103 HD 343872 a2* 19 12 31.5030062016 +24 21 37.550764440   9.98 9.93     ApSi 46 0
104 HD 231054 * 19 16 58.4724158688 +16 15 11.876795856   10.22 9.89     ~ 16 0
105 HD 338226 ** 19 21 59.8923997608 +25 11 43.747763532   9.99 9.84     ApSi 21 0
106 HD 182532 * 19 25 03.3696890664 +03 56 36.289845096   9.70 9.37     ApEuCrSr 17 0
107 BD+35 3616 ** 19 26 09.667632 +35 42 21.34224   9.85 9.46 9.462   ~ 14 0
108 HD 184471 SB* 19 33 20.4267326904 +32 34 37.124341284   9.31 9.00     A8SrCrEu 53 0
109 HD 189963 a2* 20 02 59.3808453312 -06 25 51.295200096   10.28 10.03     A3/5II 15 0
110 HD 192224 Pu* 20 12 07.9944390096 +41 21 00.631144224   8.98 8.83     Ap 19 0
111 * 48 Cyg * 20 37 31.7776891944 +31 34 21.142882560   6.213 6.304     B8IIIn 53 0
112 HD 196629 * 20 37 32.7097457928 +31 31 18.879160116   6.841 6.496     F0V 56 0
113 HD 196655 Pu* 20 37 50.1831499824 +29 43 17.878333080   8.33 8.24     A2 23 0
114 HD 196691 ** 20 39 10.6337366640 -06 09 27.313280136   8.61 8.65     ApSi 22 0
115 * gam Equ a2* 21 10 20.5000721160 +10 07 53.691967776 5.03 4.94 4.68 4.43 4.32 A9VpSrCrEu 564 0
116 HD 204815 * 21 30 06.0355303296 +35 28 20.686192284 7.140 7.320 7.320     ~ 25 0
117 NGC 7092 OpC 21 31 04.0 +48 17 47           ~ 245 0
118 HD 205087 * 21 32 27.0141683568 +23 23 40.505670060   6.611 6.680     A0VpSiSr 89 0
119 HD 205331 * 21 33 10.1106852720 +48 18 12.264702120 6.800 6.820 6.830     A1V 77 0
120 V* AP Cap a2* 21 47 36.4253190509 -17 17 41.086860967   7.59 7.67     B9III(pSi) 50 0
121 HD 209051 * 22 00 39.9766909200 -06 25 57.066351060   8.72 8.76     ApSi(Cr) 18 0
122 HD 209665 * 22 04 32.7900363936 +25 39 30.730483512   7.27 7.22     A0 22 0
123 HD 210432 ** 22 08 34.0299201504 +59 17 37.921791984       8.18   A0 29 0
124 HD 210433 * 22 08 36.0470748768 +59 17 22.254889956   7.11 7.15     A0 22 0
125 V* GL Lac a2* 22 44 07.5047456400 +55 35 21.211012248   8.85 8.82     kB9hB7HeB8pSi 293 0
126 HD 217833 a2* 23 02 43.8966254040 +55 14 10.977469584   6.439 6.525     B8III 93 0
127 V* ET And a2* 23 17 56.0115388728 +45 29 20.119357248   6.447 6.479     A0VpSiSr 151 0
128 NAME Ori Belt reg ~ ~           ~ 83 0
129 NAME Pleiades Moving Group MGr ~ ~           ~ 297 0

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