2010A&A...515A..93T


Query : 2010A&A...515A..93T

2010A&A...515A..93T - Astronomy and Astrophysics, volume 515, A93-93 (2010/6-1)

Behavior of Li abundances in solar-analog stars. II. Evidence of the connection with rotation and stellar activity.

TAKEDA Y., HONDA S., KAWANOMOTO S., ANDO H. and SAKURAI T.

Abstract (from CDS):

We previously attempted to ascertain why the LiI 6708 line-strengths of Sun-like stars differ so significantly despite the superficial similarities of stellar parameters. We carried out a comprehensive analysis of 118 solar analogs and reported that a close connection exists between the Li abundance (ALi) and the line-broadening width (vr+m; mainly contributed by rotational effect), which led us to conclude that stellar rotation may be the primary control of the surface Li content. To examine our claim in more detail, we study whether the degree of stellar activity exhibits a similar correlation with the Li abundance, which is expected because of the widely believed close connection between rotation and activity. We measured the residual flux at the line center of the strong Ca II 8542 line, r0(8542), known to be a useful index of stellar activity, for all sample stars using newly acquired spectra in this near-IR region. The projected rotational velocity (vesini) was estimated by subtracting the macroturbulence contribution from vr+m that we had already established. A remarkable (positive) correlation was found in the ALi versus (vs.) r0(8542) diagram as well as in both the r0(8542) vs. vesini and ALi vs. vesini diagrams, as had been expected. With the confirmation of rotation-dependent stellar activity, this clearly shows that the surface Li abundances of these solar analogs progressively decrease as the rotation rate decreases. Given this observational evidence, we conclude that the depletion of surface Li in solar-type stars, probably caused by effective envelope mixing, operates more efficiently as stellar rotation decelerates. It may be promising to attribute the low-Li tendency of planet-host G dwarfs to their different nature in the stellar angular momentum.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: activity - stars: atmospheres - stars: solar-type - stars: rotation

VizieR on-line data: <Available at CDS (J/A+A/515/A93): table1.dat>

Simbad objects: 118

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Number of rows : 118
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 HD 1461 PM* 00 18 41.8676757921 -08 03 10.803829898   7.14 6.46     G3VFe0.5 348 1
2 HD 1562 PM* 00 20 00.4079121242 +38 13 38.631661719   7.61   6.6   G1V 76 0
3 * 9 Cet BY* 00 22 51.7884553555 -12 12 33.969921319 7.29 7.05 6.39     G2.5V 468 0
4 HD 5294 PM* 00 54 59.2699868136 +24 06 00.974032416   8.03   7.0   G5 77 0
5 HD 6512 PM* 01 06 12.6311233224 +13 15 09.878614524       7.7   G0 55 0
6 HD 8262 PM* 01 22 17.8775669529 +18 40 57.747513391   7.58   6.6   G2V 91 0
7 HD 8406 PM* 01 23 00.8737980552 -16 29 14.860982832   8.58 7.93     G3V 71 0
8 HD 9472 * 01 33 19.0259799840 +23 58 32.051652132   8.31 7.63     G0 65 0
9 HD 9986 PM* 01 37 40.8790403832 +12 04 42.170345796   7.43 6.76     G2V 102 0
10 HD 10145 PM* 01 41 37.7304341497 +66 54 35.793352180   8.36   7.2   G6 126 0
11 HD 10307 SB* 01 41 47.1268541099 +42 36 48.221567818 5.69 5.58 4.96 4.43 4.10 G1V 486 0
12 V* EZ Cet BY* 01 49 23.3488631760 -10 42 13.083858540 7.49 7.386 6.754 6.392 6.04 G3V 163 0
13 HD 11926 * 01 58 04.5788693136 +41 23 09.758168412   8.22 7.57     G5 32 0
14 HD 12264 PM* 02 00 05.3379490800 -13 32 46.000535316   8.64 7.98     G5V 59 0
15 HD 12484 * 02 02 26.7303478128 +02 48 57.074754744   8.83 8.17     G1/2V 41 0
16 HD 12846 PM* 02 06 30.2435726136 +24 20 02.371269372 7.672 7.542 6.885 6.551 6.181 G2V 98 0
17 V* V450 And BY* 02 12 54.9880706976 +40 40 06.200020272   7.880 7.21 7.71   G5V 96 1
18 HD 15632 PM* 02 31 24.1684713000 +22 05 14.896663188       7.6   G0 43 0
19 HD 15851 PM* 02 35 35.6025284616 +61 06 22.745584764 9.37 9.107 8.409     G3V 42 0
20 HD 19518 PM* 03 08 44.3070460224 +15 20 05.382308796 8.590 8.460   7.4   G8V 59 0
21 HD 19632 PM* 03 08 52.4454834768 -24 53 15.534765600   7.97 7.28     G5V 76 0
22 HD 20065 PM* 03 14 04.7771138280 +18 18 13.553038764       7.8   G5 35 0
23 HD 20619 PM* 03 19 01.8943387080 -02 50 35.493108792 7.82 7.697 7.039 6.691 6.343 G1.5V 183 0
24 HD 21774 PM* 03 31 15.4234101024 +20 46 05.075591664   8.85   7.6   G5 64 0
25 HD 23052 SB* 03 42 36.8629130393 +17 17 36.711057236 7.920 7.740 7.080     G4V 48 0
26 HD 24552 PM* 03 54 22.6333137168 +01 15 41.830993368   8.58 7.97     G1V 46 0
27 HD 26736 BY* 04 14 32.3145372576 +23 34 29.798635044   8.711 8.047 7.691 7.356 G5V 205 0
28 HD 26990 ** 04 16 16.5072970248 +07 09 33.968089296   8.14 7.51     G0V: 74 0
29 HD 27063 PM* 04 16 30.2412812112 -00 34 22.092673404   8.71 8.07     G3V 76 0
30 HD 27685 SB* 04 22 44.7200401380 +16 47 27.158550607 8.730 8.495 7.821 7.456 7.104 G4V 155 0
31 V* V906 Tau BY* 04 26 24.6221111736 +16 51 12.069956916 8.86 8.69 8.05 7.51 7.16 G1V 214 0
32 HD 28099 BY* 04 26 40.1217122952 +16 44 48.885808416 8.98 8.78 8.12 7.56 7.23 G2+V 396 0
33 HD 28192 PM* 04 26 48.8200303488 -01 43 28.671284064   8.67 8.07     G0V 43 0
34 HD 27757 PM* 04 32 15.9580667544 +77 37 26.199907248       7.4   G5 39 0
35 HD 28821 * 04 32 21.4722509232 -05 02 20.418099324   8.29 7.61     G3V 70 0
36 HD 30246 PM* 04 46 30.3856235280 +15 28 19.360077276   8.954 8.280 7.914 7.569 G5 129 1
37 HD 31864 PM* 05 03 30.7841844056 +63 04 41.429428298       7.4   G5V 46 0
38 HD 35041 * 05 21 12.9589428720 -14 09 08.834178564   8.34 7.68     G2VFe-0.4CH-0.5 46 0
39 HD 35073 PM* 05 26 07.5210121032 +61 14 29.388835752   9.04   7.9   G5 35 0
40 HD 36152 PM* 05 28 59.1281221368 -17 25 45.264636732   8.95 8.27     G5V 63 0
41 HD 37124 PM* 05 37 02.4866159419 +20 43 50.832948117   8.35   7.2   G4IV-V 283 2
42 HD 38858 PM* 05 48 34.9402551240 -04 05 40.721787744 6.71 6.61 5.97     G2V 279 1
43 HD 42618 PM* 06 12 00.5668858951 +06 46 59.057784676 7.632 7.496 6.839 6.478 6.143 G4V 167 0
44 HD 47309 PM* 06 40 49.0410428928 +51 58 41.970261576       7.2   G0 57 0
45 HD 49178 PM* 06 48 53.8179652461 +37 30 18.436463504   8.76 8.07     G0 45 0
46 HD 49985 PM* 07 02 28.5459757224 +79 09 51.858419508   8.91 8.29     G0 27 0
47 HD 56202 * 07 16 18.5528014392 +05 04 33.938054472   9.05 8.41     G1V 41 0
48 HD 56124 PM* 07 17 09.5324832360 +33 05 31.395695892 7.700 7.560   6.5   G0 83 0
49 HD 59711 PM* 07 30 40.0131351696 -15 59 40.506885096   8.35 7.71     G2V 80 0
50 HD 64324 PM* 07 54 48.4946905320 +34 37 11.228710260 8.620 8.440   7.4   G0 60 0
51 HD 64942 * 07 55 58.2271040472 -09 47 49.935359904   9.00 8.34     G3/5V 57 0
52 HD 65080 PM* 07 57 03.6607104096 +01 30 47.689208604   8.82 8.23     G0V 36 0
53 HD 66573 SB* 08 04 29.8450828771 +09 16 04.541450957       6.9   G5VFe-1.3CH-1 76 0
54 HD 66171 PM* 08 08 10.5436001589 +71 55 27.954368486   8.82   7.8   G2V 90 0
55 HD 68017 ** 08 11 38.6535558665 +32 27 25.787520185 7.63 7.50   6.4   G3V 154 0
56 HD 68168 PM* 08 11 49.1886306960 +16 31 25.903263756   8.02   6.9   G0 79 0
57 HD 70516 PM* 08 24 15.6561750264 +44 56 58.956488592   8.31   7.3   G2V 73 1
58 HD 71148 PM* 08 27 36.7846606556 +45 39 10.754559179   6.94   5.9   G1V 184 0
59 HD 71227 * 08 28 08.9657329176 +47 18 07.877046708   8.59 7.99     G0V 32 0
60 V* V401 Hya BY* 08 37 50.2937396460 -06 48 24.779911420 7.577 7.394 6.725 6.365 6.029 G8/K0(IV) 156 0
61 HD 73393 PM* 08 40 42.1725910974 +55 40 03.844469007 8.910 8.690   7.6   G3V 60 0
62 HD 75302 PM* 08 49 12.5288521056 +03 29 05.117812440       7.0   G5V 85 0
63 HD 75767 SB* 08 52 16.3908909000 +08 03 46.496176848   8.96   6.2   G1.5V 101 0
64 HD 76151 PM* 08 54 17.9470964696 -05 26 04.054298491 6.89 6.67 6.00     G2V 498 0
65 HD 77006 PM* 09 01 37.0376721240 +49 44 12.579527760       7.5   G5 41 0
66 HD 78660 PM* 09 09 53.8594444200 +14 27 24.344945532       7.9   G5 59 0
67 HD 79282 PM* 09 14 14.5599609312 +33 49 00.897986280   8.93 8.28     G5 37 0
68 HD 82460 * 09 33 28.7367555144 +46 13 43.270245120   9.03 8.37     G0 30 0
69 HD 87680 * 10 07 14.7869054688 +29 14 15.857386872   8.60 7.98     G2V 42 0
70 HD 87666 PM* 10 07 21.6024372024 +38 17 35.541215124       7.7   K0 22 0
71 HD 88084 PM* 10 09 08.2459210080 -15 29 40.194438936   8.18 7.54     G2V 73 0
72 HD 88072 PM* 10 09 23.4291173712 +02 22 15.895562664       7.2   G3V 94 0
73 HD 89269 PM* 10 18 51.9477652368 +44 02 53.954220509   7.31   6.2   G4V 129 0
74 HD 90494 PM* 10 27 10.6423674912 +19 48 48.204069336       8.1   F8 38 0
75 * 47 UMa PM* 10 59 27.9727514012 +40 25 48.920572724   5.66   4.7   G1-VFe-0.5 751 1
76 HD 96497 PM* 11 07 28.8039240912 +22 03 10.702723644 8.980 8.830   7.8   G1V 35 0
77 HD 98618 PM* 11 21 29.0692801008 +58 29 03.702495840   8.303 7.651     G5V 72 0
78 HD 99505 PM* 11 27 03.2352283440 +21 51 08.068166784 8.340 8.230   7.2   G5 44 0
79 HD 106210 PM* 12 13 13.1188715095 +10 49 17.959844323   8.24   7.1   G3V 82 0
80 HD 106252 PM* 12 13 29.5095375792 +10 02 29.887248516   8.00   7.0   G0 175 1
81 HD 110869 PM* 12 44 28.9858982352 +58 41 27.344620500       7.6   G5V 41 0
82 HD 111938 PM* 12 52 18.5441905152 +46 46 39.981054864 9.230 9.110 8.490     G0 34 0
83 HD 112257 PM* 12 55 08.2639227312 +27 45 58.894557768 8.70 8.46 7.79     G6V 68 0
84 HD 113319 PM* 13 02 33.4583071248 +32 25 59.708429616   8.14   7.1   G4V 49 0
85 HD 114174 ** 13 08 51.0229724195 +05 12 26.065953963   7.47   6.3   G3IV+D 160 0
86 HD 115349 PM* 13 16 11.2503118251 +35 53 09.127799161   8.96   7.8   G5V 49 0
87 HD 126053 PM* 14 23 15.2847745835 +01 14 29.641269692 6.98 6.90 6.27 5.71 5.39 G1.5V 386 0
88 HD 131042 PM* 14 50 40.9765467013 +22 54 27.411944522       7.1   G2 43 0
89 HD 138004 PM* 15 27 40.3514308200 +42 52 52.638549564 8.280 8.140   7.1   G2III 71 1
90 HD 138573 PM* 15 32 43.6531189128 +10 58 05.877132528       6.8   G5IV-V 89 0
91 HD 142072 Ro* 15 52 33.7493044488 -01 54 22.783453164   8.53 7.878   7.131 G6V 47 0
92 HD 144061 PM* 15 58 21.0274554816 +70 53 39.982348068   7.903 7.280 8.00   G2V 60 0
93 * 18 Sco PM* 16 15 37.2702755653 -08 22 09.982125430   6.15 5.50     G2Va 551 0
94 HD 157347 PM* 17 22 51.2877087336 -02 23 17.439450684   6.965 6.278     G3V 181 0
95 HD 159222 PM* 17 32 00.9920372760 +34 16 16.133732796 7.38 7.21   6.1   G1V 224 0
96 HD 164595 PM* 18 00 38.8944915648 +29 34 18.921829044   7.72   6.7   G2V 102 0
97 HD 166435 PM* 18 09 21.3816898440 +29 57 06.166145376   7.457 6.829     G1IV 179 0
98 HD 167389 PM* 18 13 07.2255804768 +41 28 31.312735752   7.96 7.39     F8V: 72 0
99 HD 168009 PM* 18 15 32.4633956040 +45 12 33.540706764   6.931 6.298     G1V 202 0
100 HD 168874 PM* 18 20 49.2476761632 +27 31 49.281893688   7.62 7.00     G2IV 53 0
101 HD 168746 PM* 18 21 49.7826927816 -11 55 21.652464900   8.66 7.95     G5V 177 2
102 HD 171665 PM* 18 37 12.8396358393 -25 40 16.563795967   8.14 7.46     G4V 93 0
103 HD 184403 * 19 33 26.2142577144 +23 29 51.030229380   8.46 7.81     G0 30 0
104 HD 185414 PM* 19 35 55.5939261024 +56 59 02.081212980   7.35   6.3   G0 67 0
105 HD 184768 PM* 19 36 00.6522919542 +00 05 28.272477501   8.22 7.54 7.1   G5V 83 0
106 * 16 Cyg B PM* 19 41 51.9726777456 +50 31 03.089030916 7.07 6.86 6.20 5.76 5.42 G3V 850 1
107 HD 186104 PM* 19 42 29.7606156840 +01 35 11.487743916       7.2   G5V 56 0
108 HD 187237 PM* 19 48 00.8811360456 +27 52 10.305591024   7.51   6.5   G2IV-V 73 0
109 HD 190771 PM* 20 05 09.7757965056 +38 28 42.555790200   6.82   5.8   G2V 170 0
110 HD 195034 PM* 20 28 11.8154523936 +22 07 44.371249212       6.7   G5 78 0
111 V* TV Equ PM* 21 05 07.9216832184 +07 56 43.529395956   8.63 7.99     G5 65 0
112 V* NT Aqr BY* 22 06 05.3027674728 -05 21 29.390445108   8.26 7.58     G5V 88 0
113 HD 211786 PM* 22 19 25.1018735928 +12 27 35.261331192   8.64 7.99     G5 24 0
114 HD 215696 ** 22 47 20.75013 -16 08 46.9139       8.04   G1V 54 0
115 HD 217343 PM* 23 00 19.2868499184 -26 09 13.504347252   8.12 7.48   6.75 G5V 104 0
116 HD 218209 PM* 23 05 06.0914711839 +68 25 01.432343968 8.21 8.13 7.48 6.94 6.57 G8 129 0
117 HD 220821 PM* 23 26 40.3601418536 +45 20 17.307072032   8.01   7.0   G2 48 0
118 HD 222143 BY* 23 37 58.4879988924 +46 11 57.964746541 7.400 7.230   6.2   G2 118 0

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2022.11.29-14:47:15

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