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

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

1998A&A...334..181N - Astronomy and Astrophysics, volume 334, 181-187 (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

goto View the references in ADS

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 - 2024 		#notes
1 V* GO And a2* 00 50 18.2653153128 +45 00 08.135537076 6.13 6.16 6.15     A3VpSiSrCrEuKsn 123 0
2 HD 9484 * 01 33 03.5251929120 -09 00 52.783146216   6.549 6.595     B9V 44 0
3 V* KK And a2* 01 34 16.6199766816 +37 14 13.793039412   5.81 5.91     B9IV 79 0
4 V* GY And a2* 01 38 31.8255225672 +45 23 58.935650100   6.343 6.380     A2:VpSiSrCrEu 258 0
5 * 43 Cas a2* 01 42 20.5269432072 +68 02 34.890489276 5.29 5.52 5.59     A0VpSiSrEuHgMn 118 0
6 * gam01 Ari PM* 01 53 31.8192032943 +19 17 45.430793660   4.558 4.589 6.71   A0Vnp_lB 80 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 148 0
8 * 63 And a2* 02 20 58.2015432888 +50 09 05.385224196   5.46 5.59     B9VpSi 111 0
9 * 21 Per a2* 02 57 17.2817216760 +31 56 03.193498176   5.081 5.093     A2VspSiEu 199 0
10 * 56 Ari a2* 03 12 14.2461137352 +27 15 25.085668788 5.22 5.64 5.76     B6IV-V 264 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 101 0
12 * tau09 Eri a2* 03 59 55.4837679360 -24 00 58.377195468 4.11 4.52 4.66 4.64 4.77 ApSi 167 0
13 * 56 Tau a2* 04 19 36.7048893816 +21 46 24.566827836   5.231 5.346     A0VpSi 185 0
14 * alf Dor a2* 04 33 59.77719 -55 02 41.9243 2.83 3.18 3.28 3.29 3.38 B8IIIpSi 146 0
15 * 11 Ori a2* 05 04 34.1491891634 +15 24 14.767720310   4.609 4.661     A1VpSiCr 150 0
16 V* BN Cam a2* 05 12 22.4545154808 +73 56 48.040416348 4.970 5.320 5.450     B9.5VpSi 101 0
17 V* IQ Aur a2* 05 19 00.0284573784 +33 44 54.220806888   5.201 5.371     A0p 288 0
18 * tet Aur a2* 05 59 43.27012 +37 12 45.3047 2.36 2.54 2.62 2.62 2.68 A0VpSi 281 1
19 V* V592 Mon a2* 06 50 42.3030217728 -08 02 27.587802588 6.31 6.29 6.29     B9V 112 0
20 V* V386 Car a2* 07 04 18.3094021056 -56 44 58.928100288   5.13 5.17     ApSi 115 0
21 V* PR Pup a2* 07 14 46.0175443680 -46 50 58.816741128   5.602 5.715     ApSi 64 0
22 * 3 Hya a2* 08 35 28.1987898408 -07 58 56.257821768 5.68 5.69 5.72     A1VpSrCr 171 0
23 HD 74067 a2* 08 40 19.1757463872 -40 15 49.936471416   5.18 5.22     kB8hA0III(CrEu) 71 0
24 * b Cnc a2* 08 44 45.0357084768 +10 04 54.007285728 5.30 5.55 5.66     A1VpHgMnSiEu 185 0
25 * 25 Sex a2* 10 23 26.4782253528 -04 04 26.518221624 5.70 5.87 5.97     ApSiCr 130 0
26 V* ET UMa a2* 10 24 07.8468791760 +65 33 59.121373140   4.889 4.930     A1:VpSiSrHg 275 0
27 V* V364 Car a2* 10 40 11.4474547680 -65 06 00.752607072 4.79 5.36 5.52     ApSi 146 0
28 V* KQ Vel a2* 10 55 01.0131717072 -42 15 03.962480184 5.78 6.03 6.11     Ap(SiCr) 134 0
29 * bet Hya a2* 11 52 54.52149 -33 54 29.2672 3.85 4.18 4.28 4.27 4.35 kB8hB8HeA0VSi 101 0
30 * alf02 CVn a2* 12 56 01.6655889007 +38 19 06.155170512 2.44 2.76 2.88 2.98 3.05 A0VpSiEu 682 0
31 V* V823 Cen a2* 12 56 58.2225017496 -54 35 14.478644184   6.431 6.485     ApSiCr 73 0
32 V* V824 Cen a2* 13 10 58.4324574120 -52 34 00.832901520   5.943 6.026     ApSi 78 0
33 * 21 CVn a2* 13 18 14.5095312384 +49 40 55.429204656   5.08 5.15     B9IV(Si) 91 0
34 V* V819 Cen RR* 13 19 21.6946784904 -58 11 41.526278520   9.16 8.99     ApSi 29 0
35 * 67 Mus SB* 13 25 50.3011677024 -70 37 38.109211896   5.626 5.651     ApHg(Mn) 125 0
36 V* V827 Cen a2* 13 44 16.0025041176 -51 00 44.822666448   6.323 6.440     ApSiCr 107 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 389 0
38 V* CS Vir a2* 14 18 38.2505609712 -18 42 57.465294264 5.86 5.90 5.90     ApSi(Cr) 313 0
39 * a Cen Ro* 14 23 02.2387240143 -39 30 42.544559700 3.50 4.24 4.42 4.53 4.70 B2V 274 0
40 V* FF Vir a2* 14 25 55.8786309720 +00 59 33.756435456 7.07 7.09 7.07     ApEuSrCr 174 0
41 * pi.01 Boo * 14 40 43.5589117488 +16 25 05.975961096 4.18 4.792 4.893 4.47 4.49 B9IIIpHgMnSi 201 0
42 V* HZ Lup a2* 15 06 33.1978166352 -30 55 06.533677056   5.893 5.977     ApSi 107 0
43 V* HR Lup a2* 15 08 12.1238757000 -40 35 02.155417224 5.25 5.65 5.79     B8IVSi 170 1
44 V* BP Boo a2* 15 42 50.7602109000 +52 21 39.243860316   5.430 5.482     A0VpSiCr 132 0
45 * 3 Sco Ro* 15 54 39.5296532472 -25 14 37.459966128 5.23 5.81 5.87     B8III/IV 214 0
46 V* V928 Sco a2* 15 57 48.8021454576 -23 31 38.294134176   6.755 6.771     B8/9III 114 0
47 V* V933 Sco a2* 16 20 05.4927999744 -20 03 23.030685720   7.56 7.40     B8:VpSrTiSiEu 191 0
48 V* V773 Her a2* 16 36 42.9385265832 +15 29 50.827223688   6.296 6.355     A2VpSiSrCr 108 0
49 V* V955 Sco a2* 16 39 31.5581287440 -27 17 08.162953368   8.92 8.71     A2IVpSrCrEu 56 0
50 * 49 Her a2* 16 52 04.8506450664 +14 58 27.171504300   6.473 6.488     B9.5pSiCr 90 0
51 V* V853 Ara a2* 17 10 34.3505885232 -50 03 15.036514308   8.83 8.82     ApSi 23 0
52 V* V1089 Sco a2* 17 49 46.8963484248 -41 26 32.456819436   7.49 7.57     ApSi 35 0
53 HD 164258 a2* 18 00 15.6738880464 +00 37 46.112578968 6.70 6.52 6.37     A6VpSrCr 97 0
54 V* V4045 Sgr a2* 18 11 58.1620633344 -28 54 05.527987128   6.50 6.52     B9IV(pSrEuCr) 75 0
55 * phi Dra a2* 18 20 45.43224 +71 20 16.1499   4.15 4.22     B8V 195 0
56 V* V432 Sct a2* 18 29 46.7597878008 -14 34 55.154828424   6.014 6.027     ApEuCrEu 101 0
57 V* V686 CrA a2* 18 56 40.4859327624 -37 20 35.701261512 4.53 5.24 5.38     B3V 207 0
58 V* PW Tel a2* 19 33 21.6223874880 -45 16 18.394560768   5.562 5.583     ApCrEuSr 82 0
59 V* V3961 Sgr a2* 19 51 50.6106718344 -39 52 27.738309468 5.05 5.27 5.33     ApCr(Si) 185 0
60 * 20 Cap a2* 20 59 36.1395973248 -19 02 07.002794616   6.12 6.25     ApSi 85 0
61 * tet01 Mic a2* 21 20 45.6194367384 -40 48 34.620146136 4.77 4.84 4.82 4.73 4.69 ApCrEuSr 136 0
62 V* CG Tuc a2* 23 29 00.9815552856 -63 06 38.359594512   5.51 5.68     ApSi 95 0
63 * i03 Aqr Pe* 23 51 21.3383366673 -18 54 32.990905266 4.62 5.04 5.18     A0VpSiSr 200 0

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