2001AJ....122.2008A

Query : 2001AJ....122.2008A

2001AJ....122.2008A - Astron. J., 122, 2008-2012 (2001/October-0)

Are stellar rotational axes distributed randomly.

ABT H.A.

Abstract (from CDS):

Stellar line widths yield values of Vsini, but the equatorial rotational velocities, V, cannot be determined for individual stars without knowledge of their inclinations, i, relative to the lines of sight. For large numbers of stars we usually assume random orientations of rotational axes to derive mean values of V, but we wonder whether that assumption is valid. Individual inclinations can be derived only in special cases, such as for eclipsing binaries where they are close to 90° or for chromospherically active late-type dwarfs or spotted (e.g., Ap) stars where we have independent information about the rotational periods. We consider recent data on 102 Ap stars for which Catalano & Renson compiled rotational periods from the literature and Abt & Morrell (primarily) obtained measures of Vsini. We find that the rotational axes are oriented randomly within the measuring errors. We searched for possible dependence of the inclinations on Galactic latitude or longitude, and found no dependence.

Abstract Copyright: ∼

Journal keyword(s): Stars: Peculiar - Stars: Rotation

Simbad objects: 103

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Number of rows : 103
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 V* CG And a2* 00 00 43.6344938328 +45 15 12.007059804   6.299 6.347     A0IIspSiSrHg 157 0
2 HD 1048 * 00 14 55.8983946240 +22 17 03.212768184   6.235 6.234     A1p 50 0
3 V* GO And a2* 00 50 18.2653153128 +45 00 08.135537076 6.13 6.16 6.15     A3VpSiSrCrEuKsn 123 0
4 * 87 Psc SB* 01 14 07.6281618312 +16 08 00.514454568   5.873 5.962     B8III 141 0
5 HD 9484 * 01 33 03.5251929120 -09 00 52.783146216   6.549 6.595     B9V 44 0
6 V* KK And a2* 01 34 16.6199766816 +37 14 13.793039412   5.81 5.91     B9IV 79 0
7 V* GY And a2* 01 38 31.8255225672 +45 23 58.935650100   6.343 6.380     A2:VpSiSrCrEu 258 0
8 * alf Psc A * 02 02 02.8219762236 +02 45 49.579059841   4.06 4.11     kA0hA7Sr 179 0
9 * nu. For a2* 02 04 29.4455576134 -29 17 48.496908718 4.01 4.52 4.69 4.73 4.87 B9.5IIIspSi 148 0
10 * 63 And a2* 02 20 58.2015432888 +50 09 05.385224196   5.46 5.59     B9VpSi 111 0
11 HD 15144 a2* 02 26 00.3479612520 -15 20 28.495226652 6.06 5.97 5.83 5.71 5.67 A3VpSrCrEu 180 0
12 * iot Cas a2* 02 29 03.94780 +67 24 08.9170           ~ 261 0
13 * 21 Per a2* 02 57 17.2817216760 +31 56 03.193498176   5.081 5.093     A2VspSiEu 199 0
14 * 56 Ari a2* 03 12 14.2461137352 +27 15 25.085668788 5.22 5.64 5.76     B6IV-V 264 0
15 * 20 Eri a2* 03 36 17.4041095200 -17 28 01.472307996 4.61 5.10 5.23     B8/9III 175 0
16 * 22 Eri a2* 03 40 38.3331139440 -05 12 38.555731188 4.81 5.38 5.53     B9IIIpSi4200 129 0
17 V* V766 Tau a2* 03 51 15.8708072234 +13 02 45.875628119 5.88 6.32 6.38 6.36 6.39 B9pS 101 0
18 * tau08 Eri SB* 03 53 42.7023562560 -24 36 44.021417544   4.496 4.623     B6V 116 0
19 * tau09 Eri a2* 03 59 55.4837679360 -24 00 58.377195468 4.11 4.52 4.66 4.64 4.77 ApSi 167 0
20 * 41 Tau a2* 04 06 36.4125948768 +27 35 59.640149616   5.041 5.172     Ap 238 0
21 * 56 Tau a2* 04 19 36.7048893816 +21 46 24.566827836   5.231 5.346     A0VpSi 185 0
22 * alf Dor a2* 04 33 59.77719 -55 02 41.9243 2.83 3.18 3.28 3.29 3.38 B8IIIpSi 146 0
23 * 11 Ori a2* 05 04 34.1491891634 +15 24 14.767720310   4.609 4.661     A1VpSiCr 150 0
24 HD 32996 * 05 06 36.7428644112 -13 07 21.436598928   6.005 6.039     B9.5/A0IV 37 0
25 V* BN Cam a2* 05 12 22.4545154808 +73 56 48.040416348 4.970 5.320 5.450     B9.5VpSi 101 0
26 V* IQ Aur a2* 05 19 00.0284573784 +33 44 54.220806888   5.201 5.371     A0p 288 0
27 HD 34797 a2* 05 19 18.3112191840 -18 30 34.391115684 6.02 6.43 6.54     B7Vp 105 0
28 V* V1046 Ori SB* 05 35 21.8667428568 -04 29 39.024375324 5.66 6.43 6.56 6.61 6.74 B2/3V 303 0
29 * 137 Tau a2* 05 52 22.2914333688 +14 10 18.428386584   5.532 5.586     A0VpSiSrCr 107 0
30 * tet Aur a2* 05 59 43.27012 +37 12 45.3047 2.36 2.54 2.62 2.62 2.68 A0VpSi 281 1
31 HD 41269 * 06 05 33.8990688480 +33 35 56.579173440   6.136 6.213     B9VpSrCr 59 0
32 V* V592 Mon a2* 06 50 42.3030217728 -08 02 27.587802588 6.31 6.29 6.29     B9V 112 0
33 * I Pup a2* 07 12 33.6251363845 -46 45 33.496585918 4.80 4.81 4.49 4.17 3.95 F3VFe-1.0 138 0
34 * L01 Pup a2* 07 13 13.3506005472 -45 10 57.855357732   4.855 4.874     B9V 90 0
35 * 49 Cam a2* 07 46 27.4146675768 +62 49 49.882910592   6.750 6.458     A7VpSrCrEuSiKsn 138 0
36 HD 64740 * 07 53 03.6344819483 -49 36 46.956285817 3.48 4.40 4.63 4.76 4.97 B2V 211 0
37 * 53 Cam a2* 08 01 42.4403874648 +60 19 27.806833200   6.177 6.008     A3VpSrSiCrEu 400 0
38 V* V336 Pup a2* 08 02 44.7832446360 -41 18 35.371028736   5.358 5.497     B9pSi 58 0
39 * 15 Cnc a2* 08 13 08.8680600240 +29 39 23.536760076   5.541 5.605     B8VpSi 131 0
40 HD 74196 Ce* 08 40 17.4649643448 -53 00 55.430609904 4.97 5.47 5.61     B9/A0 135 0
41 V* HY Vel SB* 08 42 25.3866034128 -53 06 50.343377699 3.97 4.655 4.815     B3IV 174 0
42 * nu. Cnc SB* 09 02 44.2677118128 +24 27 10.392222600   5.404 5.447     A0III 199 0
43 * L Car * 10 22 58.1465809448 -66 54 05.385596996 4.35 4.86 4.99     B8V 112 0
44 * 25 Sex a2* 10 23 26.4782253528 -04 04 26.518221624 5.70 5.87 5.97     ApSiCr 130 0
45 * 45 Leo a2* 10 27 38.9889218664 +09 45 44.610005160 5.89 5.98 6.04     B9.5IV-VpSiCrSr(Mn) 138 0
46 V* V364 Car a2* 10 40 11.4474547680 -65 06 00.752607072 4.79 5.36 5.52     ApSi 146 0
47 * 46 Cen a2* 11 07 16.6899055992 -42 38 19.247612928   5.25 5.24     ApSrCrEu 67 0
48 V* EP UMa a2* 11 09 39.7864853928 +67 12 36.756332280   6.278 6.061     A7IVpSr 84 0
49 HD 98088 a2* 11 16 58.1772734352 -07 08 04.869775428 6.49 6.34 6.14     ApSrCrEu 202 0
50 * bet Hya a2* 11 52 54.52149 -33 54 29.2672 3.85 4.18 4.28 4.27 4.35 kB8hB8HeA0VSi 101 0
51 * 17 Com a2* 12 28 54.7022406648 +25 54 46.265813136   5.208 5.236     B9VCrEu 280 0
52 * 21 Com a2* 12 31 00.5605002264 +24 34 01.797245328   5.496 5.436     A2pv 283 0
53 * eps UMa a2* 12 54 01.7495922 +55 57 35.362645 1.76 1.75 1.77 1.79 1.82 A1III-IVpkB9 471 0
54 * alf02 CVn a2* 12 56 01.6655889007 +38 19 06.155170512 2.44 2.76 2.88 2.98 3.05 A0VpSiEu 682 0
55 V* V824 Cen a2* 13 10 58.4324574120 -52 34 00.832901520   5.943 6.026     ApSi 78 0
56 * o Vir a2* 13 34 07.9312445507 +03 39 32.288960317 4.96 4.96 4.94 4.86 4.89 ApEuCrSr 346 0
57 V* CQ UMa a2* 13 40 21.3848060304 +57 12 27.374885568   6.380 6.273     A2IVpSrCr 117 0
58 * 84 UMa a2* 13 46 35.6567876472 +54 25 57.643558644   5.632 5.675     A0VpSrCrEu 158 0
59 V* V869 Cen SB* 14 09 35.0324964096 -51 30 16.832689380   5.913 5.961     B8V 90 0
60 V* CU Vir a2* 14 12 15.8055434051 +02 24 33.945178515 4.46 4.90 5.02 5.10 5.23 ApSi 389 0
61 V* CS Vir a2* 14 18 38.2505609712 -18 42 57.465294264 5.86 5.90 5.90     ApSi(Cr) 313 0
62 HD 133029 a2* 15 00 38.7178984848 +47 16 38.791986348   6.250 6.351     A0VspSiSrCr 216 0
63 V* HZ Lup a2* 15 06 33.1978166352 -30 55 06.533677056   5.893 5.977     ApSi 107 0
64 * bet CrB a2* 15 27 49.7540595700 +29 06 20.494640434 4.08 3.97 3.68 3.50 3.45 F2VpSrCrEuSi 686 0
65 * chi Ser a2* 15 41 47.4147355608 +12 50 51.093705840 5.42 5.37 5.33 5.28 5.32 A2VpMnEu(Sr) 185 0
66 V* BP Boo a2* 15 42 50.7602109000 +52 21 39.243860316   5.430 5.482     A0VpSiCr 132 0
67 * 3 Sco Ro* 15 54 39.5296532472 -25 14 37.459966128 5.23 5.81 5.87     B8III/IV 214 0
68 V* V913 Sco Ro* 15 58 34.8665694960 -24 49 53.361727284 4.70 5.34 5.43     B5V 205 0
69 HD 144334 ** 16 06 06.3891324384 -23 36 22.849641396 5.29 5.84 5.92     B8V 193 0
70 * ome Her a2* 16 25 24.9546742056 +14 01 59.762072676 4.53 4.57 4.58 4.51 4.55 A2VpCrSr 234 0
71 * ome Oph a2* 16 32 08.2003815598 -21 27 59.052127058 4.69 4.56 4.45 4.32 4.30 ApSrEuCr 156 0
72 V* V773 Her a2* 16 36 42.9385265832 +15 29 50.827223688   6.296 6.355     A2VpSiSrCr 108 0
73 V* LP TrA a2* 16 46 39.9916001976 -67 06 34.885332000   5.000 5.100     ApSi 69 0
74 * l Her a2* 16 47 46.4200216512 +05 14 48.291336960 5.20 5.22 5.24     A1VpSi 129 0
75 * 52 Her a2* 16 49 14.21821 +45 58 59.9620   4.914 4.823     A1VpSiSrCr 258 0
76 V* V451 Her a2* 17 01 33.0515292528 +14 56 58.988031648 6.39 6.35 6.31     A0VpSiSrCrEu 177 0
77 * 52 Oph a2* 17 35 18.5001243240 -22 02 37.775976180   6.490 6.481     ApSi 77 0
78 V* V957 Sco BS* 17 52 13.6613130072 -34 47 57.109291728 5.16 5.80 5.90     B5IVp 136 0
79 V* V951 Sco a2* 17 53 58.1358478008 -34 49 51.800052684   6.43 6.42     kB6hA0VHeA0pSiCr 102 0
80 V* V771 Her a2* 17 58 52.3058286816 +45 28 34.391604360   6.407 6.481     B9pSiSr 89 0
81 HD 164258 a2* 18 00 15.6738880464 +00 37 46.112578968 6.70 6.52 6.37     A6VpSrCr 97 0
82 V* V4045 Sgr a2* 18 11 58.1620633344 -28 54 05.527987128   6.50 6.52     B9IV(pSrEuCr) 75 0
83 V* V692 CrA Ro* 18 13 12.6984255264 -41 20 09.997218708   5.298 5.462     B2III 62 0
84 * phi Dra a2* 18 20 45.43224 +71 20 16.1499   4.15 4.22     B8V 195 0
85 V* V432 Sct a2* 18 29 46.7597878008 -14 34 55.154828424   6.014 6.027     ApEuCrEu 101 0
86 HD 170973 a2* 18 32 06.8865165216 +03 39 34.601753412   6.381 6.407     B9IIIpSi 128 0
87 V* V2393 Oph a2* 18 33 23.3029636152 +08 16 05.698559100 6.05 6.379 6.416     B9III 73 0
88 V* V535 Her a2* 18 45 35.6181098712 +21 59 04.850169216   6.524 6.522     A1VpSiHgMn 155 0
89 V* LV Dra a2* 19 00 13.6777912704 +50 32 00.478630500 4.42 5.202 5.377     B2.5IV 108 0
90 HD 177517 * 19 05 41.1802109904 -15 39 37.510548984 5.70 5.95 5.97     B8III(pSi) 76 0
91 V* V1291 Aql a2* 19 53 18.7357174440 -03 06 52.063556976   5.837 5.619     F0VpSrCrEu 277 0
92 V* V2015 Cyg a2* 20 33 54.8435604456 +46 41 37.867484940   5.626 5.769     B8pSi 102 0
93 * 20 Cap a2* 20 59 36.1395973248 -19 02 07.002794616   6.12 6.25     ApSi 85 0
94 * tet01 Mic a2* 21 20 45.6194367384 -40 48 34.620146136 4.77 4.84 4.82 4.73 4.69 ApCrEuSr 136 0
95 V* V1934 Cyg a2* 21 24 55.4388619200 +49 19 23.259823896 6.55 6.55 6.58     A0VpSrCrSiHg 57 0
96 HD 210071 * 22 06 13.5664908456 +56 20 36.219953940   6.286 6.382     A0VpSiSr 77 0
97 V* ET And a2* 23 17 56.0115388728 +45 29 20.119357248   6.447 6.479     A0VpSiSr 148 0
98 * kap Psc a2* 23 26 55.9558721856 +01 15 20.177913204 4.94 4.98 4.94 4.87 4.90 A2VpSrCrSi 276 0
99 V* CG Tuc a2* 23 29 00.9815552856 -63 06 38.359594512   5.51 5.68     ApSi 95 0
100 V* V354 Peg a2* 23 31 43.0297787640 +28 24 12.555107604   6.418 6.388     A0VpSrCrSiHg 74 0
101 HD 223358 ** 23 48 39.05246 +64 52 35.2292           A0VpSrSiCrHg 85 0
102 HD 223358A a2* 23 48 39.0538619085 +64 52 35.225787915   6.78 6.76     ~ 82 0
103 * i03 Aqr Pe* 23 51 21.3383366673 -18 54 32.990905266 4.62 5.04 5.18     A0VpSiSr 200 0

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