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 - 2021
#notes
1 HD 1461 PM* 00 18 41.8673684261 -08 03 10.805762856   7.14 6.46     G3VFe0.5 332 1
2 HD 1562 PM* 00 20 00.4079008772 +38 13 38.631019880   7.61   6.6   G1V 74 0
3 * 9 Cet BY* 00 22 51.7883318927 -12 12 33.972374893 7.29 7.05 6.39     G2.5V 460 0
4 HD 5294 PM* 00 54 59.2702780596 +24 06 00.975071552   8.03   7.0   G5 72 0
5 HD 6512 PM* 01 06 12.6312001066 +13 15 09.877746638       7.7   G0 50 0
6 HD 8262 PM* 01 22 17.8775729860 +18 40 57.747476694   7.58   6.6   G2V 85 0
7 HD 8406 PM* 01 23 00.8734798539 -16 29 14.861814008   8.58 7.93     G3V 65 0
8 HD 9472 * 01 33 19.0262548731 +23 58 32.050954638   8.31 7.63     G0 60 0
9 HD 9986 PM* 01 37 40.8792727548 +12 04 42.171416648   7.43 6.76     G2V 96 0
10 HD 10145 PM* 01 41 37.7299982706 +66 54 35.792158394   8.36   7.2   G6 119 0
11 HD 10307 SB* 01 41 47.1431421954 +42 36 48.443521767 5.69 5.58 4.96 4.43 4.10 G1V 475 0
12 V* EZ Cet BY* 01 49 23.3505045594 -10 42 13.019336799 7.49 7.386 6.754 6.392 6.04 G3V 155 0
13 HD 11926 * 01 58 04.5787150284 +41 23 09.757306863   8.22 7.57     G5 29 0
14 HD 12264 PM* 02 00 05.3380960261 -13 32 46.000032697   8.64 7.98     G5V 54 0
15 HD 12484 * 02 02 26.7300904549 +02 48 57.075704309   8.83 8.17     G1/2V 36 0
16 HD 12846 PM* 02 06 30.2435455621 +24 20 02.372074889 7.672 7.542 6.885 6.551 6.181 G2V 91 0
17 V* V450 And BY* 02 12 54.9902695034 +40 40 06.222270192   7.880 7.21 7.71   G5V 93 1
18 HD 15632 PM* 02 31 24.1684705040 +22 05 14.896302129       7.6   G0 42 0
19 HD 15851 PM* 02 35 35.6023683109 +61 06 22.701753304 9.37 9.107 8.409     G3V 41 0
20 HD 19518 PM* 03 08 44.3072760070 +15 20 05.385636983 8.590 8.460   7.4   G8V 55 0
21 HD 19632 PM* 03 08 52.4456738030 -24 53 15.532862086   7.97 7.28     G5V 73 0
22 HD 20065 PM* 03 14 04.7731736873 +18 18 13.546479952       7.8   G5 34 0
23 HD 20619 PM* 03 19 01.8944014526 -02 50 35.492892644 7.82 7.697 7.039 6.691 6.343 G1.5V 175 0
24 HD 21774 PM* 03 31 15.4234596112 +20 46 05.073838265   8.85   7.6   G5 62 0
25 HD 23052 SB* 03 42 36.8629130393 +17 17 36.711057236 7.920 7.740 7.080     G4V 47 0
26 HD 24552 PM* 03 54 22.6333195854 +01 15 41.830080016   8.58 7.97     G1V 45 0
27 HD 26736 BY* 04 14 32.3143718674 +23 34 29.798017740   8.711 8.047 7.691 7.356 G5V 194 0
28 HD 26990 ** 04 16 16.5221579662 +07 09 33.777352427   8.14 7.51     G0V: 68 0
29 HD 27063 PM* 04 16 30.2413232322 -00 34 22.093539462   8.71 8.07     G3V 71 0
30 HD 27685 SB* 04 22 44.7200401380 +16 47 27.158550607 8.730 8.495 7.821 7.456 7.104 G4V 154 0
31 V* V906 Tau BY* 04 26 24.6147463863 +16 51 12.093831724 8.86 8.69 8.05 7.51 7.16 G1V 210 0
32 HD 28099 BY* 04 26 40.1215422118 +16 44 48.884181598 8.98 8.78 8.12 7.56 7.23 G2+V 380 0
33 HD 28192 PM* 04 26 48.8199317205 -01 43 28.669198333   8.67 8.07     G0V 38 0
34 HD 27757 PM* 04 32 15.9576366140 +77 37 26.199352573       7.4   G5 37 0
35 HD 28821 * 04 32 21.4722770510 -05 02 20.417354124   8.29 7.61     G3V 64 0
36 HD 30246 PM* 04 46 30.3864259988 +15 28 19.348842103   8.954 8.280 7.914 7.569 G5 119 1
37 HD 31864 PM* 05 03 30.7841689391 +63 04 41.431054246       7.4   G5V 44 0
38 HD 35041 * 05 21 12.9590387901 -14 09 08.833178387   8.34 7.68     G2VFe-0.4CH-0.5 43 0
39 HD 35073 PM* 05 26 07.5209091863 +61 14 29.388636450   9.04   7.9   G5 34 0
40 HD 36152 PM* 05 28 59.1280208092 -17 25 45.265979943   8.95 8.27     G5V 58 0
41 HD 37124 PM* 05 37 02.4866790656 +20 43 50.834619370   8.35   7.2   G4IV-V 276 2
42 HD 38858 PM* 05 48 34.9401453172 -04 05 40.719529406 6.71 6.61 5.97     G2V 267 1
43 HD 42618 PM* 06 12 00.5668246170 +06 46 59.057316892 7.632 7.496 6.839 6.478 6.143 G4V 158 0
44 HD 47309 PM* 06 40 49.0408211336 +51 58 41.969879234       7.2   G0 54 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 28.5453364582 +79 09 51.860339402   8.91 8.29     G0 26 0
47 HD 56202 * 07 16 18.5525472395 +05 04 33.941483045   9.05 8.41     G1V 38 0
48 HD 56124 PM* 07 17 09.5324685449 +33 05 31.400815511 7.700 7.560   6.5   G0 79 0
49 HD 59711 PM* 07 30 40.0131777539 -15 59 40.505491099   8.35 7.71     G2V 75 0
50 HD 64324 PM* 07 54 48.4946449910 +34 37 11.232443587 8.620 8.440   7.4   G0 55 0
51 HD 64942 * 07 55 58.2270625134 -09 47 49.933268457   9.00 8.34     G3/5V 52 0
52 HD 65080 PM* 07 57 03.6613480140 +01 30 47.690766689   8.82 8.23     G0V 33 0
53 HD 66573 PM* 08 04 29.8432674456 +09 16 04.565349237       6.9   G5VFe-1.3CH-1 73 0
54 HD 66171 PM* 08 08 10.5437374919 +71 55 27.959201673   8.82   7.8   G2V 85 0
55 HD 68017 ** 08 11 38.6527383056 +32 27 25.780504406 7.63 7.50   6.4   G3V 149 0
56 HD 68168 PM* 08 11 49.1884896739 +16 31 25.906701424   8.02   6.9   G0 72 0
57 HD 70516 PM* 08 24 15.6562755632 +44 56 58.960185580   8.31   7.3   G2V 67 1
58 HD 71148 PM* 08 27 36.7845769755 +45 39 10.757178045   6.94   5.9   G1V 179 0
59 HD 71227 * 08 28 08.9656981421 +47 18 07.879760092   8.59 7.99     G0V 31 0
60 V* V401 Hya BY* 08 37 50.2937802584 -06 48 24.777904953 7.577 7.394 6.725 6.365 6.029 G8/K0(IV) 146 0
61 HD 73393 PM* 08 40 42.1725962485 +55 40 03.847374444 8.910 8.690   7.6   G3V 59 0
62 HD 75302 PM* 08 49 12.5290101188 +03 29 05.120327518       7.0   G5V 78 0
63 HD 75767 SB* 08 52 16.3905821896 +08 03 46.504270457   8.96   6.2   G1.5V 99 0
64 HD 76151 PM* 08 54 17.9469808897 -05 26 04.046487788 6.89 6.67 6.00     G2V 486 0
65 HD 77006 PM* 09 01 37.0374845392 +49 44 12.581447295       7.5   G5 40 0
66 HD 78660 PM* 09 09 53.8594585474 +14 27 24.346651410       7.9   G5 53 0
67 HD 79282 PM* 09 14 14.5600314448 +33 49 00.899074656   8.93 8.28     G5 34 0
68 HD 82460 * 09 33 28.7367136720 +46 13 43.255067259   9.03 8.37     G0 27 0
69 HD 87680 * 10 07 14.7865955891 +29 14 15.863552758   8.60 7.98     G2V 40 0
70 HD 87666 PM* 10 07 21.6025301272 +38 17 35.542769007       7.7   K0 21 0
71 HD 88084 PM* 10 09 08.2458432506 -15 29 40.190519050   8.18 7.54     G2V 69 0
72 HD 88072 PM* 10 09 23.4290742733 +02 22 15.899376519       7.2   G3V 85 0
73 HD 89269 PM* 10 18 51.9479311289 +44 02 53.955704979   7.31   6.2   G4V 123 0
74 HD 90494 PM* 10 27 10.6422186752 +19 48 48.207287260       8.1   F8 36 0
75 * 47 UMa PM* 10 59 27.9738644892 +40 25 48.922388918   5.66   4.7   G1-VFe-0.5 733 1
76 HD 96497 PM* 11 07 28.8040616751 +22 03 10.703104044 8.980 8.830   7.8   G1V 34 0
77 HD 98618 PM* 11 21 29.0694769107 +58 29 03.704275968   8.303 7.651     G5V 69 0
78 HD 99505 PM* 11 27 03.2349843806 +21 51 08.070555912 8.340 8.230   7.2   G5 42 0
79 HD 106210 PM* 12 13 13.1187136931 +10 49 17.961030099   8.24   7.1   G3V 80 0
80 HD 106252 PM* 12 13 29.5100104731 +10 02 29.888816943   8.00   7.0   G0 166 1
81 HD 110869 PM* 12 44 28.9858472365 +58 41 27.344310486       7.6   G5V 40 0
82 HD 111938 PM* 12 52 18.5442405200 +46 46 39.982260889 9.230 9.110 8.490     G0 33 0
83 HD 112257 PM* 12 55 08.2641341225 +27 45 58.894837879 8.70 8.46 7.79     G6V 63 0
84 HD 113319 PM* 13 02 33.4584600184 +32 25 59.709477648   8.14   7.1   G4V 47 0
85 HD 114174 ** 13 08 51.0231461021 +05 12 26.064930541   7.47   6.3   G3IV+D 153 0
86 HD 115349 PM* 13 16 11.2503286302 +35 53 09.130778079   8.96   7.8   G5V 48 0
87 HD 126053 PM* 14 23 15.2847534665 +01 14 29.641784590 6.98 6.90 6.27 5.71 5.39 G1.5V 375 0
88 HD 131042 PM* 14 50 40.9765854435 +22 54 27.414602978       7.1   G2 41 0
89 HD 138004 PM* 15 27 40.3504710137 +42 52 52.671302685 8.280 8.140   7.1   G2III 65 1
90 HD 138573 PM* 15 32 43.6531754309 +10 58 05.879783892       6.8   G5IV-V 79 0
91 HD 142072 Ro* 15 52 33.7494008456 -01 54 22.782518327   8.53 7.878   7.131 G6V 42 0
92 HD 144061 PM* 15 58 21.0287423547 +70 53 39.979166768   7.903 7.280 8.00   G2V 57 0
93 * 18 Sco PM* 16 15 37.2703721200 -08 22 09.981989277   6.15 5.50     G2Va 519 0
94 HD 157347 PM* 17 22 51.2877095327 -02 23 17.439826176   6.965 6.278     G3V 172 0
95 HD 159222 PM* 17 32 00.9922730198 +34 16 16.130879367 7.38 7.21   6.1   G1V 213 0
96 HD 164595 PM* 18 00 38.8946598123 +29 34 18.922470861   7.72   6.7   G2V 94 0
97 HD 166435 PM* 18 09 21.3817906855 +29 57 06.165674208   7.457 6.829     G1IV 174 0
98 HD 167389 PM* 18 13 07.2257142711 +41 28 31.311389409   7.96 7.39     F8V: 67 0
99 HD 168009 PM* 18 15 32.4634579930 +45 12 33.540002210   6.931 6.298     G1V 192 0
100 HD 168874 PM* 18 20 49.2480496160 +27 31 49.277511389   7.62 7.00     G2IV 47 0
101 HD 168746 PM* 18 21 49.7828389501 -11 55 21.653794976   8.66 7.95     G5V 170 2
102 HD 171665 PM* 18 37 12.8396016344 -25 40 16.563073000   8.14 7.46     G4V 87 0
103 HD 184403 * 19 33 26.2143732232 +23 29 51.027620423   8.46 7.81     G0 29 0
104 HD 185414 PM* 19 35 55.5932649804 +56 59 02.081743187   7.35   6.3   G0 61 0
105 HD 184768 PM* 19 36 00.6522387968 +00 05 28.270119217   8.22 7.54 7.1   G5V 81 0
106 * 16 Cyg B PM* 19 41 51.9731830550 +50 31 03.086127222 7.07 6.86 6.20 5.76 5.42 G3V 817 1
107 HD 186104 PM* 19 42 29.7605843171 +01 35 11.485247879       7.2   G5V 53 0
108 HD 187237 PM* 19 48 00.8812665154 +27 52 10.303035275   7.51   6.5   G2IV-V 70 0
109 HD 190771 PM* 20 05 09.7751399814 +38 28 42.552259617   6.82   5.8   G2V 163 0
110 HD 195034 PM* 20 28 11.8155584127 +22 07 44.367004336       6.7   G5 74 0
111 V* TV Equ PM* 21 05 07.9298204509 +07 56 43.495199603   8.63 7.99     G5 61 0
112 V* NT Aqr BY* 22 06 05.3019536483 -05 21 29.385255187   8.26 7.58     G5V 82 0
113 HD 211786 PM* 22 19 25.1022000324 +12 27 35.260382637   8.64 7.99     G5 23 0
114 HD 215696 ** 22 47 20.75013 -16 08 46.9139       8.04   G1V 51 0
115 HD 217343 PM* 23 00 19.2872945687 -26 09 13.506860661   8.12 7.48   6.75 G5V 99 0
116 HD 218209 PM* 23 05 06.0911806521 +68 25 01.432968207 8.21 8.13 7.48 6.94 6.57 G8 126 0
117 HD 220821 PM* 23 26 40.3584465025 +45 20 17.307352022   8.01   7.0   G2 47 0
118 HD 222143 BY* 23 37 58.4877827270 +46 11 57.962198837 7.400 7.230   6.2   G2 115 0

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2021.10.16-23:43:43

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