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

Full paper

View the references in ADS

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 - 2023	#notes
1	V* CG And	a2*	00 00 43.6344938328	+45 15 12.007059804		6.299	6.347			A0IIspSiSrHg	155	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	139	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	253	0
8	* alf Psc A	*	02 02 02.8219762236	+02 45 49.579059841		4.06	4.11			kA0hA7Sr	178	0
9	* nu. For	a2*	02 04 29.4386071	-29 17 48.547752	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	110	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						~	256	0
13	* 21 Per	a2*	02 57 17.2817216760	+31 56 03.193498176		5.081	5.093			A2VspSiEu	196	0
14	* 56 Ari	a2*	03 12 14.2461137352	+27 15 25.085668788	5.22	5.64	5.76			B6IV-V	261	0
15	* 20 Eri	a2*	03 36 17.4041095200	-17 28 01.472307996	4.61	5.10	5.23			B8/9III	174	0
16	* 22 Eri	a2*	03 40 38.3331139440	-05 12 38.555731188	4.81	5.38	5.53			B9IIIpSi4200	127	0
17	V* V766 Tau	a2*	03 51 15.8708072234	+13 02 45.875628119	5.88	6.32	6.38	6.36	6.39	B9pSi	100	0
18	* tau08 Eri	SB*	03 53 42.7023562560	-24 36 44.021417544		4.496	4.623			B6V	114	0
19	* tau09 Eri	a2*	03 59 55.4837679360	-24 00 58.377195468	4.11	4.52	4.66	4.64	4.77	ApSi	166	0
20	* 41 Tau	a2*	04 06 36.4125948768	+27 35 59.640149616		5.041	5.172			Ap	236	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	144	0
23	* 11 Ori	a2*	05 04 34.1491631	+15 24 14.777073		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	36	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	287	0
27	HD 34797	a2*	05 19 18.3112191840	-18 30 34.391115684	6.02	6.43	6.54			B7Vp	100	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	299	0
29	* 137 Tau	a2*	05 52 22.2914333688	+14 10 18.428386584		5.532	5.586			A0VpSiSrCr	105	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	0
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	136	0
34	* L01 Pup	a2*	07 13 13.3506005472	-45 10 57.855357732		4.855	4.874			B9V	86	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 03.6353775	-49 36 46.952967	3.48	4.40	4.63	4.76	4.97	B2V	206	0
37	* 53 Cam	a2*	08 01 42.4403874648	+60 19 27.806833200		6.177	6.008			A3VpSrSiCrEu	397	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	133	0
41	V* HY Vel	SB*	08 42 25.3866034128	-53 06 50.343377699	3.97	4.655	4.815			B3IV	170	0
42	* nu. Cnc	SB*	09 02 44.2677118128	+24 27 10.392222600		5.404	5.447			A0III	197	0
43	* L Car	*	10 22 58.1460612	-66 54 05.390302	4.35	4.86	4.99			B8V	109	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	144	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	V* SV Crt	a2*	11 16 58.1772734352	-07 08 04.869775428	6.49	6.34	6.14			ApSrCrEu	202	1
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	273	0
52	* 21 Com	a2*	12 31 00.5605002264	+24 34 01.797245328		5.496	5.436			A2pv	264	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	469	0
54	* alf02 CVn	a2*	12 56 01.6655889007	+38 19 06.155170512	2.44	2.76	2.88	2.98	3.05	A0VpSiEu	671	0
55	V* V824 Cen	a2*	13 10 58.4324574120	-52 34 00.832901520		5.943	6.026			ApSi	77	0
56	* o Vir	a2*	13 34 07.9318557	+03 39 32.273821	4.96	4.96	4.94	4.86	4.89	ApEuCrSr	336	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	157	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 15.8054758	+02 24 33.953395	4.46	4.90	5.02	5.10	5.23	ApSi	384	0
61	V* CS Vir	a2*	14 18 38.2505609712	-18 42 57.465294264	5.86	5.90	5.90			ApSi(Cr)	312	0
62	HD 133029	a2*	15 00 38.7178984848	+47 16 38.791986348		6.250	6.351			A0VspSiSrCr	214	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 49.7315305	+29 06 20.522375	4.08	3.97	3.68	3.50	3.45	F2VpSrCrEuSi	679	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)	184	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	209	0
68	V* V913 Sco	Ro*	15 58 34.8665694960	-24 49 53.361727284	4.70	5.34	5.43			B5V	200	0
69	HD 144334	**	16 06 06.3891324384	-23 36 22.849641396	5.29	5.84	5.92			B8V	190	0
70	* ome Her	a2*	16 25 24.9546742056	+14 01 59.762072676	4.53	4.57	4.58	4.51	4.55	A2VpCrSr	233	0
71	* ome Oph	a2*	16 32 08.1998273	-21 27 59.012005	4.69	4.56	4.45	4.32	4.30	ApSrEuCr	154	0
72	V* V773 Her	a2*	16 36 42.9385265832	+15 29 50.827223688		6.296	6.355			A2VpSiSrCr	107	0
73	V* LP TrA	a2*	16 46 39.9916001976	-67 06 34.885332000		5.000	5.100			ApSi	68	0
74	* l Her	a2*	16 47 46.4200216512	+05 14 48.291336960	5.20	5.22	5.24			A1VpSi	128	0
75	* 52 Her	a2*	16 49 14.21821	+45 58 59.9620		4.914	4.823			A1VpSiSrCr	255	0
76	V* V451 Her	a2*	17 01 33.0515292528	+14 56 58.988031648	6.39	6.35	6.31			A0VpSiSrCrEu	176	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			B6Ib	133	0
79	V* V951 Sco	a2*	17 53 58.1358478008	-34 49 51.800052684		6.43	6.42			kB6hA0VHeA0pSiCr	100	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	127	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	153	0
89	V* LV Dra	a2*	19 00 13.6777912704	+50 32 00.478630500	4.42	5.202	5.377			B2.5IV	106	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	275	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	134	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	146	0
98	* kap Psc	a2*	23 26 55.9558721856	+01 15 20.177913204	4.94	4.98	4.94	4.87	4.90	A2VpSrCrSi	272	0
99	V* CG Tuc	a2*	23 29 00.9815552856	-63 06 38.359594512		5.51	5.68			ApSi	94	0
100	V* V354 Peg	a2*	23 31 43.0297787640	+28 24 12.555107604		6.418	6.388			A0VpSrCrSiHg	73	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	199	0

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