2003A&A...398..647R

Query : 2003A&A...398..647R

2003A&A...398..647R - Astronomy and Astrophysics, volume 398, 647-661 (2003/2-1)

Rotation and differential rotation in field F- and G-type stars.

REINERS A. and SCHMITT J.H.M.M.

Abstract (from CDS):

We present a detailed study of rotation and differential rotation analyzing high resolution high S/N spectra of 142 F-, G- and early K-type field stars. Using Least Squares Deconvolution we obtain broadening profiles for our sample stars and use the Fourier transform method to determine projected rotational velocities vsin i. Distributions of rotational velocities and periods are studied in the HR-diagram. For a subsample of 32 stars of spectral type F0-G0 we derive the amount of differential rotation in terms of α=(ΩEquator-ΩPole)/Ω_ Equator_. We find evidence for differential rotation in ten of the 32 stars. Differential rotation seems to be more common in slower rotators, but deviations from rigid rotation are also found in some fast rotators. We search for correlations between differential rotation and parameters relevant for stellar activity and show indications against strong differential rotation in very active stars. We derive values of ΔP and ΔΩ, which support a period dependence of differential rotation. Derived lap times 2π/ΔΩ are of the order of 20d and contradict the assumption that constant lap times of the order of the solar one (∼130d) are the rule in stars that are thought to harbour magnetic dynamos.

Abstract Copyright: ∼

Journal keyword(s): stars: rotation - stars: late-type - stars: activity

VizieR on-line data: <Available at CDS (J/A+A/398/647): table3.dat tablea1.dat>

Simbad objects: 145

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Number of rows : 145
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 * 85 Peg SB* 00 02 10.3487193861 +27 04 54.599101714 6.47 6.42 5.75 5.16 4.73 G5VbFe-2 545 0
2 * tet Scl PM* 00 11 44.0210769384 -35 07 59.212953084   5.661 5.239     F5V 145 0
3 * zet Tuc PM* 00 20 04.2586334956 -64 52 29.257190108 4.82 4.80 4.23 3.73 3.40 F9.5V 380 0
4 * bet Hyi PM* 00 25 45.07036 -77 15 15.2860 3.52 3.41 2.79 2.28 1.94 G0V 593 0
5 HD 2726 Er* 00 30 26.0632693104 -48 12 53.355477672   6.005 5.664     F2V 67 0
6 * lam02 Phe PM* 00 35 41.1754684944 -48 00 03.264963408   5.948 5.510     F5V+ 70 0
7 * rho Tuc SB* 00 42 28.3718820672 -65 28 04.906571664   5.875 5.381     F6V 62 0
8 HD 4247 PM* 00 44 44.3961246504 -22 00 22.080121164   5.542 5.220     F3VFe-1 91 0
9 * phi02 Cet PM* 00 50 07.5889624710 -10 38 39.583852438   5.69 5.19     F7V 267 0
10 HD 8556 SB* 01 24 20.5021369 -06 54 52.773474   6.32 5.92     F4V 142 0
11 HD 10800 SB* 01 37 55.5566913096 -82 58 29.986653720 6.58 6.48 5.87     G1V 92 1
12 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1256 1
13 HD 13445 PM* 02 10 25.9181700303 -50 49 25.465181208   6.945 6.117     K1.5V 457 1
14 * eta Ari PM* 02 12 48.0856782200 +21 12 39.577562642       5.0   F5V 189 0
15 * sig Cet ** 02 32 05.1877984910 -15 14 41.653561505 5.19 5.20 4.75 4.34 4.07 F5V 205 0
16 * lam02 For PM* 02 36 58.6077493776 -34 34 40.711246464 6.67 6.45 5.79     G1V 213 1
17 * eps Cet SB* 02 39 33.7974128402 -11 52 19.551632148   5.33 4.87     F5V 204 0
18 * zet Hor SB* 02 40 39.6133475112 -54 32 59.682907572   5.61 5.21     F6V 64 0
19 * iot Hor PM* 02 42 33.4666679022 -50 48 01.055138166   5.97 5.40     F8V 395 1
20 * tau01 Eri PM* 02 45 06.1988006895 -18 34 21.442179919 4.94 4.94 4.46 4.03 3.76 F7V 226 0
21 * rho Ari PM* 02 56 26.1717266513 +18 01 23.665188613   6.02 5.58 5.3   F6V 158 0
22 * alf For PM* 03 12 04.5298039833 -28 59 15.439152331 4.41 4.51 3.98 3.39 3.08 F6V 273 0
23 * zet01 Ret PM* 03 17 46.1634549490 -62 34 31.152456644 6.24 6.18 5.54 5.00 4.66 G2.5VHdel1 295 0
24 * zet02 Ret ** 03 18 12.8188824117 -62 30 22.904711032   5.814 5.228     G1V 362 0
25 * e Eri PM* 03 19 55.6509122226 -43 04 11.215188426 5.20 4.98 4.27 3.65 3.25 G6V 450 1
26 * kap Ret PM* 03 29 22.6774206459 -62 56 15.104181615   5.10 4.71     F3IV/V 168 1
27 * del Eri PM* 03 43 14.9005379551 -09 45 48.210955899 5.13 4.46 3.54 2.82 2.32 K0+IV 599 0
28 * tau06 Eri PM* 03 46 50.8873186498 -23 14 59.002090709   4.65 4.20     F5IV-V 190 0
29 HD 25457 TT* 04 02 36.7442719512 -00 16 08.119921152   5.88 5.38     F7V 265 0
30 HD 25570 PM* 04 03 56.6024860680 +08 11 50.158688748       5.2   F2Vs 106 0
31 HD 25621 PM* 04 04 09.8751899184 +02 49 37.019733024   5.86   5.0   F6V 138 0
32 * eps Ret PM* 04 16 29.0281470260 -59 18 07.755891304 6.59 5.52 4.44 3.62 3.08 K2III 239 1
33 * pi.03 Ori PM* 04 49 50.4112051485 +06 57 40.600622266 3.620 3.630 3.190 2.77 2.51 F6V 572 0
34 HD 33093 PM* 05 07 24.9631786008 -12 29 28.573529244   6.559 5.956     G0IV 64 0
35 * 68 Eri PM* 05 08 43.6987121400 -04 27 22.349830176   5.546 5.119     F5.5VkF4mF2 228 0
36 * 111 Tau BY* 05 24 25.4632701888 +17 23 00.726415944   5.52   4.7   F8V 339 0
37 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1023 0
38 * gam Lep PM* 05 44 27.7906169580 -22 26 54.187756254 4.08 4.07 3.60 3.15 2.89 F6V 428 0
39 * chi01 Ori RS* 05 54 22.9829893 +20 16 34.222038 5.08 5.00 4.40 3.90 3.59 G0V 852 0
40 * eta Lep PM* 05 56 24.2934904501 -14 10 03.718335613 4.05 4.05 3.72 3.39 3.23 F2V 336 0
41 * k Ori PM* 06 16 26.6191067712 +12 16 19.787639592   5.46   4.8   F5V 135 0
42 HD 57095 ** 07 17 29.56192 -46 58 45.2751 8.362 7.646 6.669     K1V+K4V 78 0
43 HD 57749 dS* 07 22 25.3899278880 -05 58 58.184091120   6.166 5.816     F2III 54 0
44 * 63 Gem SB* 07 27 44.3573297448 +21 26 43.004490108   5.62 5.24     F3V 128 0
45 HD 60532 PM* 07 34 03.1805638968 -22 17 45.843172440 5.02 4.94 4.39     F6IV-V 223 1
46 * 9 Pup SB* 07 51 46.30295 -13 53 52.9169           G0V 243 0
47 HD 64235 ** 07 52 47.8565103427 -05 25 41.289776254   6.161 5.765     F5IV 79 0
48 HD 65907 PM* 07 57 46.9142992394 -60 18 11.058944907 6.17 6.17 5.60     F9.5V 189 0
49 * mu.02 Cnc PM* 08 07 45.8562513552 +21 34 54.526814256 6.14 5.93 5.30     G1IVb 226 0
50 * B Car SB* 08 09 00.6369168474 -61 18 08.545898653   5.163 4.742     F6VFe-0.8CH-0.4 163 0
51 * zet01 Cnc B PM* 08 12 12.8122502523 +17 38 52.145328431   6.80 6.17     ~ 105 0
52 * zet02 Cnc SB* 08 12 13.1995918248 +17 38 54.566664900   6.36 5.79     G0IV-V 108 1
53 * 1 Hya SB* 08 24 35.0141853312 -03 45 04.472972064 6.01 6.07 5.61     F6V 141 1
54 HD 72673 PM* 08 32 51.4956803280 -31 30 03.064960317   7.17 6.38     K1V 214 0
55 HD 73752 SB* 08 39 07.8986712999 -22 39 42.828327944   6.00 5.17 6.38   G3V+K0V 133 0
56 HD 76932 PM* 08 58 43.9327642391 -16 07 57.817644364 6.47 6.39 5.86     G2VFe-1.8CH-1 404 0
57 * 27 Hya * 09 20 29.0149400062 -09 33 20.532085376   5.750 4.811     K0III 90 0
58 HD 81809 SB* 09 27 46.8088908054 -06 04 17.008787302           G1.5IV-V 301 0
59 * tau01 Hya SB* 09 29 08.9313661104 -02 46 08.182035516   5.06 4.60     F5V 190 0
60 HD 87783 ** 10 06 11.21241 -47 22 11.9676       6.47   K1III+(G) 43 0
61 HD 89569 PM* 10 18 37.9085291952 -56 06 37.417005216   6.29 5.80     F6V 62 0
62 * 40 Leo dS* 10 19 44.1672125464 +19 28 15.285966538   5.24   4.5   F6IV-V 268 0
63 * Y Vel PM* 10 31 21.8208713206 -53 42 55.740987419   5.39 4.89     F9VFe-0.8CH-0.7 157 0
64 HD 91889 PM* 10 36 32.3819362122 -12 13 48.440040258   6.22 5.71     F8V 184 0
65 * b03 Hya PM* 10 53 29.5322257872 -20 08 19.426040232   5.71 5.24     F6V 109 0
66 * lam Crt SB* 11 23 21.8814666155 -18 46 48.128136896   5.51 5.09     F5III 115 0
67 * iot Leo SB* 11 23 55.45273 +10 31 46.2195   4.35   3.8   F3V 274 0
68 * 81 Leo PM* 11 25 36.3727820736 +16 27 23.532637608   5.939 5.572 10.0   F2V 77 0
69 * 17 Crt B PM* 11 32 16.0399546776 -29 15 47.899939428   6.19 5.671 5.49   F8V 41 0
70 * 89 Leo PM* 11 34 21.9489030480 +03 03 36.593787600   6.23   5.5   F5.5V 162 0
71 HD 102928 SB* 11 51 02.2295090976 -05 19 59.993484060   6.676 5.622     K0+IIIb: 97 0
72 * 2 Com ** 12 04 16.59831 +21 27 32.9474           F0IV-V 79 0
73 * alf Crv PM* 12 08 24.8172764085 -24 43 43.952148016   4.33 4.01     F1V 181 0
74 HD 109409 PM* 12 34 42.3935608056 -44 40 22.867472928   6.44 5.76     G3IV 75 0
75 * gam Vir PM* 12 41 39.6282288151 -01 26 57.854228847 3.07 3.10 2.74 2.45 2.26 F1-F2V 468 0
76 HD 112164 PM* 12 54 58.5434001533 -44 09 06.955051834 6.78 6.53 5.89     F9Vp 128 0
77 * 39 Com ** 13 06 21.23974 +21 09 12.2343           F4V 116 0
78 * alf Com A PM* 13 09 59.285492 +17 31 45.85645   5.25 4.80     F5V 242 0
79 * 53 Vir PM* 13 12 03.5431874543 -16 11 54.970689063   5.50 5.04     F5.5V 143 0
80 HD 114971 ** 13 14 43.2669768240 -48 57 25.309605996   6.906 5.831     K1III 30 0
81 * e Vir PM* 13 16 46.5148594512 +09 25 26.960139646   5.81   4.8   G0V 551 1
82 * 61 Vir PM* 13 18 24.3139864471 -18 18 40.297748582 5.710 5.440 4.740     G6.5V 675 1
83 * 66 Vir PM* 13 24 33.2485660488 -05 09 50.404470804   6.167 5.749     K2V 79 0
84 * 70 Vir PM* 13 28 25.8085908881 +13 46 43.638308807 5.930 5.680 4.970 4.37 3.98 G4Va 716 1
85 HD 118646 PM* 13 38 42.0709958256 -29 33 39.123093744   6.221 5.810     F3V 68 0
86 * tau Boo Ro* 13 47 15.7381720026 +17 27 24.809555600 5.02 4.98 4.49 4.09 3.85 F7IV-V 989 1
87 * eta Boo SB* 13 54 41.07892 +18 23 51.7946 3.440 3.250 2.680 2.24 1.95 G0IV 706 0
88 HD 121416 PM* 13 56 19.7763079968 -46 35 34.616994576   6.955 5.815     K1III 47 0
89 * 48 Hya PM* 14 00 00.1207098672 -25 00 37.456449156   6.25 5.77     F6V 73 0
90 * d Boo SB* 14 10 23.9334932664 +25 05 30.037020972 5.44 5.37 4.83 4.39 4.10 F8V 170 0
91 * iot Vir PM* 14 16 00.8682760805 -06 00 01.969483331 4.64 4.60 4.08     F7III 357 0
92 HD 125276 PM* 14 19 00.8956927577 -25 48 55.529829905   6.36 5.87     F9VFe-1.5CH-0.7 102 0
93 * alf Cir a2* 14 42 30.4206520931 -64 58 30.478845491 3.55 3.43 3.19 2.96 2.86 A7VpSrCrEu 365 0
94 * alf01 Lib SB* 14 50 41.1718805688 -15 59 49.957540152 5.53 5.57 5.16 4.78 4.59 F3V 196 0
95 * ksi Boo BY* 14 51 23.37993 +19 06 01.6994 5.618 5.370 4.593 3.91 3.48 G7Ve+K5Ve 474 0
96 * nu.02 Lup PM* 15 21 48.1499105161 -48 19 03.469906910 6.35 6.30 5.65     G3/5V 295 1
97 * nu.01 Lup PM* 15 22 08.2706803440 -47 55 40.053168840   5.50 5.00     F6III-IV 108 0
98 HD 136359 PM* 15 23 10.5035736792 -60 39 25.812143568   6.119 5.651     F5V 52 0
99 * eps Lib SB* 15 24 11.8837924176 -10 19 20.203874400   5.358 4.920     F4V 145 0
100 * 37 Lib PM* 15 34 10.7024841438 -10 03 52.317750492 6.48 5.63 4.62 3.85 3.33 K1III-IV 175 0
101 HD 139211 PM* 15 39 56.5437010824 -59 54 30.007118052   6.43 5.95     F6IV 86 0
102 * lam Ser PM* 15 46 26.6142121632 +07 21 11.047378824 5.13 5.03 4.42 3.92 3.60 G0-V 574 0
103 * kap TrA * 15 55 29.5996908168 -68 36 10.803406644   6.202 5.097     G5Ib-II 45 0
104 * gam Ser PM* 15 56 27.1826577018 +15 39 41.809580382 4.31 4.34 3.84 3.37 3.13 F6V 558 0
105 * 49 Lib SB* 16 00 19.6356157674 -16 32 00.283475392   5.99 5.47     F8V 129 0
106 * ksi Sco B PM* 16 04 22.1287658832 -11 22 22.672411248   5.35 4.87     F5V 109 0
107 * gam Aps PM* 16 33 27.0825153352 -78 53 49.733407072   4.783 3.854     G8III 93 0
108 * 20 Oph PM* 16 49 50.0177515608 -10 46 59.034574488   5.105 4.632     F7V 181 0
109 * 26 Oph ** 17 00 09.5293323528 -24 59 20.901756372   6.117 5.731     F3V 58 0
110 HD 155555 RS* 17 17 25.5053342232 -66 57 03.732141636 7.795 7.499 6.723   6.39 G5V+K1V 274 1
111 * ksi Oph PM* 17 21 00.3745211364 -21 06 46.571010951   4.752 4.387     F2V 136 0
112 * 47 Oph SB* 17 26 37.8815658414 -05 05 11.754469183 4.90 4.93 4.54 4.16 3.95 F3V 157 0
113 * lam Ara PM* 17 40 23.8255785576 -49 24 56.099256516   5.17 4.77     F4V 118 0
114 HD 160910 PM* 17 41 58.6315350936 +15 57 08.760391308 5.880 5.920 5.540     F4Vw 81 0
115 * 58 Oph PM* 17 43 25.7935382141 -21 40 59.498912759   5.313 4.861     F5V 146 0
116 * mu. Ara PM* 17 44 08.7031414872 -51 50 02.591603160   5.85 5.15     G3IV-V 533 2
117 * tau Oph B * 18 03 04.8015992685 -08 10 48.913324413   6.27 5.86     F5V 69 0
118 HD 165185 PM* 18 06 23.7195191736 -36 01 11.230597272 6.64 6.57 5.95 5.58   G1V 169 0
119 * iot Pav PM* 18 10 26.1537006792 -62 00 07.992182016   6.07 5.49     G0V 114 0
120 * 110 Her PM* 18 45 39.7256792847 +20 32 46.713086264 4.66 4.65 4.19 3.80 3.54 F5.5IV-V 408 0
121 HD 175317 PM* 18 55 31.0053872592 -16 22 35.888206980   5.985 5.546     F5V 116 0
122 * 11 Aql PM* 18 59 05.7387801960 +13 37 20.074337544   5.788 5.258     F8V 98 0
123 HD 175986 ** 19 03 29.6331376968 -68 45 20.091805452   6.422 5.861     G0IV 46 0
124 * gam CrA ** 19 06 25.11014 -37 03 48.3901 4.75 4.73 4.21     F8V+F8V 54 0
125 * gam CrA A PM* 19 06 25.2146839530 -37 03 47.792348952   5.07 4.53     F8V 81 0
126 * chi Aql ** 19 42 34.00828 +11 49 35.7023 5.880 5.870 5.310     G2Ib+B5.5 63 0
127 HD 186185 PM* 19 43 33.5477235951 -15 28 12.076153462   5.95 5.49     F6IV-V 86 0
128 * bet Aql PM* 19 55 18.7928429719 +06 24 24.351242346 5.040 4.560 3.710 3.05 2.56 G8IV 553 0
129 * del Pav PM* 20 08 43.6088716052 -66 10 55.442769229 4.78 4.32 3.56 2.95 2.61 G8IV 391 0
130 HD 191408 PM* 20 11 11.9387690214 -36 06 04.351725607   5.44 5.32     K2.5V 268 1
131 HD 191408B PM* 20 11 12.8028949300 -36 06 32.166102762           M3.5 226 1
132 * psi Cap PM* 20 46 05.7329952443 -25 16 15.233491015   4.538 4.122     F5V 216 0
133 HD 199260 PM* 20 56 47.3316655128 -26 17 46.960329480   6.20 5.70     F6V 115 0
134 HD 199684 PM* 20 59 59.6926062168 -36 07 46.698507048   6.474 6.096     F2V 55 0
135 * gam Pav PM* 21 26 26.6049826473 -65 21 58.313057521 4.57 4.70 4.22 3.75 3.45 F9VFe-1.4CH-0.7 412 0
136 * 42 Cap RS* 21 41 32.8588063853 -14 02 51.404792132 6.03 5.83 5.18     G2IV 185 0
137 V* HN Peg BY* 21 44 31.3299461136 +14 46 18.983292600       6.16   G0V+ 516 0
138 * tau PsA PM* 22 10 08.7801946925 -32 32 54.270294310   5.40 4.92     F6V 153 0
139 HD 211415 PM* 22 18 15.6133953371 -53 37 37.466806476   5.98 5.39 6.52   G0V 194 0
140 * ups Aqr PM* 22 34 41.6357860992 -20 42 29.576916972   5.637 5.203     F7V 133 0
141 * ksi Peg PM* 22 46 41.5798542334 +12 10 22.388860108 4.66 4.69 4.20 3.73 3.42 F6V 386 0
142 HD 219482 PM* 23 16 57.6874876272 -62 00 04.312068048   6.146 5.647     F6V 122 0
143 * phi Gru PM* 23 18 09.8840454696 -40 49 27.703073964   5.952 5.537     F4V 62 0
144 * omi Gru PM* 23 26 36.5609994960 -52 43 17.679494676   5.901 5.522     F4V 68 0
145 * iot Psc PM* 23 39 57.0406036160 +05 37 34.653911951 4.640 4.620 4.120 3.68 3.37 F7V 617 0

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