1998A&A...334..181N

Query : 1998A&A...334..181N

1998A&A...334..181N - Astronomy and Astrophysics, volume 334181-187 (1998/6-1)

Do Si stars undergo any rotational braking?

NORTH P.

Abstract (from CDS):

The old question of rotational braking of Ap Si stars is revisited on the empirical side, taking advantage of the recent Hipparcos results. Field stars with various evolutionary states are considered, and it is shown that the loose correlation between their rotational period and their surface gravity is entirely compatible with conservation of angular momentum. No evidence is found for any loss of angular momentum on the Main Sequence, which confirms earlier results based on less reliable estimates of surface gravity. The importance of reliable, fundamental Teff determinations of Bp and Ap stars is emphasized.

Abstract Copyright: ∼

Journal keyword(s): stars: chemically peculiar - stars: fundamental parameters - stars: individual: HD 124224 - stars: rotation

Errata: Erratum vol. 336, p. 1072

CDS comments: Objects IRAS NA are [JCC87] IRAS NA

Simbad objects: 63

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Number of rows : 63
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 V* GO And a2* 00 50 18.2653153128 +45 00 08.135537076 6.13 6.16 6.15     A3VpSiSrCrEuKsn 129 0
2 HD 9484 * 01 33 03.5251929120 -09 00 52.783146216   6.549 6.595     B9V 47 0
3 V* KK And a2* 01 34 16.6199766816 +37 14 13.793039412   5.81 5.91     B9IV 84 0
4 V* GY And a2* 01 38 31.8255225672 +45 23 58.935650100   6.343 6.380     A2:VpSiSrCrEu 270 0
5 * 43 Cas a2* 01 42 20.5269432072 +68 02 34.890489276 5.29 5.52 5.59     A0VpSiSrEuHgMn 123 0
6 * gam01 Ari PM* 01 53 31.8192032943 +19 17 45.430793660   4.558 4.589 6.71   A0Vnp_lB 85 0
7 * nu. For a2* 02 04 29.4455576134 -29 17 48.496908718 4.01 4.52 4.69 4.73 4.87 B9.5IIIspSi 153 0
8 * 63 And a2* 02 20 58.2015432888 +50 09 05.385224196   5.46 5.59     B9VpSi 118 0
9 * 21 Per a2* 02 57 17.2817216760 +31 56 03.193498176   5.081 5.093     A2VspSiEu 206 0
10 * 56 Ari a2* 03 12 14.2461137352 +27 15 25.085668788 5.22 5.64 5.76     B6IV-V 271 0
11 V* V766 Tau a2* 03 51 15.8708072234 +13 02 45.875628119 5.88 6.32 6.38 6.36 6.39 B9pS 106 0
12 * tau09 Eri a2* 03 59 55.4837679360 -24 00 58.377195468 4.11 4.52 4.66 4.64 4.77 ApSi 172 0
13 * 56 Tau a2* 04 19 36.7048893816 +21 46 24.566827836   5.231 5.346     A0VpSi 193 0
14 * alf Dor a2* 04 33 59.77719 -55 02 41.9243 2.83 3.18 3.28 3.29 3.38 B8IIIpSi 151 0
15 * 11 Ori a2* 05 04 34.1491891634 +15 24 14.767720310   4.609 4.661     A1VpSiCr 156 0
16 V* BN Cam a2* 05 12 22.4545154808 +73 56 48.040416348 4.970 5.320 5.450     B9.5VpSi 106 0
17 V* IQ Aur a2* 05 19 00.0284573784 +33 44 54.220806888   5.201 5.371     A0p 293 0
18 * tet Aur a2* 05 59 43.27012 +37 12 45.3047 2.36 2.54 2.62 2.62 2.68 A0VpSi 296 1
19 V* V592 Mon a2* 06 50 42.3030217728 -08 02 27.587802588 6.31 6.29 6.29     B9V 120 0
20 V* V386 Car a2* 07 04 18.3094021056 -56 44 58.928100288   5.13 5.17     ApSi 120 0
21 V* PR Pup a2* 07 14 46.0175443680 -46 50 58.816741128   5.602 5.715     ApSi 68 0
22 * 3 Hya a2* 08 35 28.1987898408 -07 58 56.257821768 5.68 5.69 5.72     A1VpSrCr 178 0
23 HD 74067 a2* 08 40 19.1757463872 -40 15 49.936471416   5.18 5.22     kB8hA0III(CrEu) 76 0
24 * b Cnc a2* 08 44 45.0357084768 +10 04 54.007285728 5.30 5.55 5.66     A1VpHgMnSiEu 190 0
25 * 25 Sex a2* 10 23 26.4782253528 -04 04 26.518221624 5.70 5.87 5.97     ApSiCr 135 0
26 V* ET UMa a2* 10 24 07.8468791760 +65 33 59.121373140   4.889 4.930     A1:VpSiSrHg 284 0
27 V* V364 Car a2* 10 40 11.4474547680 -65 06 00.752607072 4.79 5.36 5.52     ApSi 154 0
28 V* KQ Vel a2* 10 55 01.0131717072 -42 15 03.962480184 5.78 6.03 6.11     Ap(SiCr) 142 0
29 * bet Hya a2* 11 52 54.52149 -33 54 29.2672 3.85 4.18 4.28 4.27 4.35 kB8hB8HeA0VSi 110 0
30 * alf02 CVn a2* 12 56 01.6655889007 +38 19 06.155170512 2.44 2.76 2.88 2.98 3.05 A0VpSiEu 707 0
31 V* V823 Cen a2* 12 56 58.2225017496 -54 35 14.478644184   6.431 6.485     ApSiCr 77 0
32 V* V824 Cen a2* 13 10 58.4324574120 -52 34 00.832901520   5.943 6.026     ApSi 85 0
33 * 21 CVn a2* 13 18 14.5095312384 +49 40 55.429204656   5.08 5.15     B9IV(Si) 97 0
34 V* V819 Cen RR* 13 19 21.6946784904 -58 11 41.526278520   9.16 8.99     ApSi 30 0
35 * 67 Mus SB* 13 25 50.3011677024 -70 37 38.109211896   5.626 5.651     ApHg(Mn) 132 0
36 V* V827 Cen a2* 13 44 16.0025041176 -51 00 44.822666448   6.323 6.440     ApSiCr 115 0
37 V* CU Vir a2* 14 12 15.8055434051 +02 24 33.945178515 4.46 4.90 5.02 5.10 5.23 ApSi 411 0
38 V* CS Vir a2* 14 18 38.2505609712 -18 42 57.465294264 5.86 5.90 5.90     ApSi(Cr) 322 0
39 * a Cen Ro* 14 23 02.2387240143 -39 30 42.544559700 3.50 4.24 4.42 4.53 4.70 B2V 289 0
40 V* FF Vir a2* 14 25 55.8786309720 +00 59 33.756435456 7.07 7.09 7.07     ApEuSrCr 184 0
41 * pi.01 Boo * 14 40 43.5589117488 +16 25 05.975961096 4.18 4.792 4.893 4.47 4.49 B9IIIpHgMnSi 212 0
42 V* HZ Lup a2* 15 06 33.1978166352 -30 55 06.533677056   5.893 5.977     ApSi 110 0
43 V* HR Lup a2* 15 08 12.1238757000 -40 35 02.155417224 5.25 5.65 5.79     B8IVSi 186 1
44 V* BP Boo a2* 15 42 50.7602109000 +52 21 39.243860316   5.430 5.482     A0VpSiCr 140 0
45 * 3 Sco Ro* 15 54 39.5296532472 -25 14 37.459966128 5.23 5.81 5.87     B8III/IV 232 0
46 V* V928 Sco a2* 15 57 48.8021454576 -23 31 38.294134176   6.755 6.771     B8/9III 123 0
47 V* V933 Sco a2* 16 20 05.4927999744 -20 03 23.030685720   7.56 7.40     B8:VpSrTiSiEu 204 0
48 V* V773 Her a2* 16 36 42.9385265832 +15 29 50.827223688   6.296 6.355     A2VpSiSrCr 114 0
49 V* V955 Sco a2* 16 39 31.5581287440 -27 17 08.162953368   8.92 8.71     A2IVpSrCrEu 63 0
50 * 49 Her a2* 16 52 04.8506450664 +14 58 27.171504300   6.473 6.488     B9.5pSiCr 94 0
51 V* V853 Ara a2* 17 10 34.3505885232 -50 03 15.036514308   8.83 8.82     ApSi 24 0
52 V* V1089 Sco a2* 17 49 46.8963484248 -41 26 32.456819436   7.49 7.57     ApSi 36 0
53 HD 164258 a2* 18 00 15.6738880464 +00 37 46.112578968 6.70 6.52 6.37     A6VpSrCr 99 0
54 V* V4045 Sgr a2* 18 11 58.1620633344 -28 54 05.527987128   6.50 6.52     B9IV(pSrEuCr) 80 0
55 * phi Dra a2* 18 20 45.43224 +71 20 16.1499   4.15 4.22     B8V 200 0
56 V* V432 Sct a2* 18 29 46.7597878008 -14 34 55.154828424   6.014 6.027     ApEuCrEu 105 0
57 V* V686 CrA a2* 18 56 40.4859327624 -37 20 35.701261512 4.53 5.24 5.38     B3V 214 0
58 V* PW Tel a2* 19 33 21.6223874880 -45 16 18.394560768   5.562 5.583     ApCrEuSr 84 0
59 V* V3961 Sgr a2* 19 51 50.6106718344 -39 52 27.738309468 5.05 5.27 5.33     ApCr(Si) 191 0
60 * 20 Cap a2* 20 59 36.1395973248 -19 02 07.002794616   6.12 6.25     ApSi 89 0
61 * tet01 Mic a2* 21 20 45.6194367384 -40 48 34.620146136 4.77 4.84 4.82 4.73 4.69 ApCrEuSr 142 0
62 V* CG Tuc a2* 23 29 00.9815552856 -63 06 38.359594512   5.51 5.68     ApSi 99 0
63 * i03 Aqr Pe* 23 51 21.3383366673 -18 54 32.990905266 4.62 5.04 5.18     A0VpSiSr 207 0

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