2003A&A...405..723D

Query : 2003A&A...405..723D

2003A&A...405..723D - Astronomy and Astrophysics, volume 405723-731 (2003/7-2)

On the link between rotation, chromospheric activity and Li abundance in subgiant stars.

DO NASCIMENTO J.D.Jr, CANTO MARTINS B.L., MELO C.H.F., PORTO DE MELLO G. and DE MEDEIROS J.R.

Abstract (from CDS):

The connection rotation-CaII emission flux-lithium abundance is analyzed for a sample of bona fide subgiant stars, with evolutionary status determined from HIPPARCOS trigonometric parallax measurements and from the Toulouse-Geneva code. The distribution of rotation and CaII emission flux as a function of effective temperature shows a discontinuity located around the same spectral type, F8IV. Blueward of this spectral type, subgiants have a large spread of values of rotation and CaII flux, whereas stars redward of F8IV show essentially low rotation and low CaII flux. The strength of these declines depends on stellar mass. The abundance of lithium also shows a sudden decrease. For subgiants with mass lower than about 1.2M☉ the decrease is located later than that in rotation and CaII flux, whereas for masses higher than 1.2M☉ the decrease in lithium abundance is located around the spectral type F8IV. The discrepancy between the location of the discontinuities of rotation and CaII emission flux and logn(Li) for stars with masses lower than 1.2M☉ seems to reflect the sensitivity of these phenomena to the mass of the convective envelope. The drop in rotation, which results mostly from a magnetic braking, requires an increase in the mass of the convective envelope less than that required for the decrease in logn(Li). The location of the discontinuity in logn(Li) for stars with masses higher than 1.2M☉, in the same region of the discontinuities in rotation and CaII emission flux, may also be explained by the behavior of the deepening of the convective envelope. The more massive the star is, the earlier is the increase of the convective envelope. In contrast to the relationship between rotation and CaII flux, which is fairly linear, the relationship between lithium abundance and rotation shows no clear tendency toward linear behavior. Similarly, no clear linear trend is observed in the relationship between lithium abundance and CaII flux. In spite of these facts, subgiants with high lithium content also have high rotation and high CaII emission flux.

Abstract Copyright: ∼

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

Simbad objects: 122

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Number of rows : 122
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 HD 400 PM* 00 08 40.9385785968 +36 37 37.652234016       5.9   F8IV 172 0
2 HD 645 RG* 00 10 42.8341071816 -12 34 47.633650356   6.861 5.849     K0III 68 0
3 * 23 And PM* 00 13 30.8399867400 +41 02 07.335805740   6.03   5.5   F0IV 77 0
4 * 14 Cet PM* 00 35 32.8334053776 -00 30 20.198722752   6.368 5.936     F5V 143 0
5 HD 4744 PM* 00 49 52.7905428912 +30 27 01.035653220   8.69   7.0   G8IV 74 0
6 * phi02 Cet PM* 00 50 07.5889624710 -10 38 39.583852438   5.69 5.19     F7V 286 0
7 * 21 Cet PM* 00 54 17.5927919832 -08 44 26.390035212   7.086 6.161     G8III 90 0
8 * 36 And ** 00 54 58.10609 +23 37 41.9799 7.37 6.46 5.45 4.67 4.17 K0IV(e) 192 0
9 HD 6301 PM* 01 04 27.6244798752 +29 39 31.631943600   6.634 6.202     F7IV-V 64 0
10 * 78 Psc PM* 01 08 01.3436357736 +32 00 43.665847416   6.65   6.0   F5IV 77 0
11 * ome And ** 01 27 39.3807155195 +45 24 24.065127426 5.25 5.25 4.83 4.42 4.19 F4IV 152 0
12 HD 9562 PM* 01 33 42.8357181696 -07 01 31.238801760 6.61 6.40 5.76     G1V 282 0
13 HD 11151 PM* 01 50 57.1281289032 +51 56 00.303705744   6.385 5.951     F5IV 75 0
14 * 112 Psc PM* 02 00 09.1595515021 +03 05 49.250440047   6.50   5.5   G2IV 182 0
15 * 64 Cet PM* 02 11 21.0787585632 +08 34 11.305868808   6.189 5.623 6.81   G0IV 129 0
16 * 20 Ari PM* 02 15 46.0497447336 +25 46 58.578118716       5.5   F6III-IV 81 0
17 * 79 Cet PM* 02 35 19.9291748518 -03 33 38.172943076   7.49 6.78     G2V 317 1
18 HD 18262 PM* 02 56 13.7672430696 +08 22 53.623894908   6.431 5.963     F6III-IVs 91 0
19 * 47 Ari PM* 02 58 05.2213070040 +20 40 07.442238720   6.230   5.6   F0V(e) 201 0
20 * 59 Ari PM* 03 19 55.7958132408 +27 04 16.068323604   6.774 5.918     G7IV 79 0
21 * del Eri PM* 03 43 14.9005379551 -09 45 48.210955899 5.13 4.46 3.54 2.82 2.32 K0+IV 651 0
22 HD 25621 PM* 04 04 09.8751899184 +02 49 37.019733024   5.86   5.0   F6V 145 0
23 HD 26913 BY* 04 15 25.7871375264 +06 11 58.751401236 7.790 7.580 6.920 6.554 6.195 G6V 243 0
24 HD 26923 PM* 04 15 28.8004060272 +06 11 12.698572488 6.910 6.860   5.9   G0IV 236 0
25 * 95 Tau * 04 43 13.7564089344 +24 05 20.102409420   6.674 6.151     G0 68 0
26 HD 30912 PM* 04 52 47.1169861176 +27 53 50.963387784   6.328 5.961     F2IVn 67 0
27 * 13 Ori PM* 05 07 38.3133215416 +09 28 18.409616217   6.79   5.8   G3 140 0
28 HD 34180 PM* 05 15 18.4973518464 -01 24 32.960758752   6.541 6.154     F2/3V 60 0
29 * lam Aur PM* 05 19 08.4754499121 +40 05 56.585080940 5.46 5.33 4.71 4.18 3.86 G1.5IV-VFe-1 567 0
30 HD 37788 * 05 41 05.5958352240 +00 20 15.915863220   6.212 5.912     F0V 63 0
31 HD 39881 PM* 05 56 03.4330645058 +13 55 29.692876766   7.252 6.600 7.55   G2V 169 0
32 * k Ori PM* 06 16 26.6191067712 +12 16 19.787639592   5.46   4.8   F5V 153 0
33 HD 53329 PM* 07 06 11.5917643416 +34 28 26.284245888   6.456 5.551     G8IV 61 0
34 HD 57749 dS* 07 22 25.3899278880 -05 58 58.184091120   6.166 5.816     F2III 59 0
35 HD 60532 PM* 07 34 03.1805638968 -22 17 45.843172440 5.02 4.94 4.39     F6IV-V 244 1
36 HD 64685 PM* 07 55 31.4332576416 +08 51 46.221276744   6.21 5.80     F3V 66 0
37 HD 66011 * 08 01 50.7295370880 +08 54 50.369164956   6.777 6.209     G0IV 80 0
38 HD 71952 PM* 08 32 33.4474262160 +53 06 53.448930648   7.252 6.226     K0IV 52 0
39 HD 73017 PM* 08 38 22.1852310000 +53 24 05.545743516   6.609 5.645     G9III 54 0
40 * 34 Lyn PM* 08 41 01.0699086744 +45 50 02.421127212   6.344 5.359     G8IV 112 0
41 HD 76291 PM* 08 56 49.9526041968 +45 37 53.925764016   6.843 5.711     K1IV 96 0
42 * sig02 UMa ** 09 10 23.54597 +67 08 02.4642   5.29 4.80     F7V 187 0
43 HD 82074 PM* 09 29 32.4156232920 -04 14 47.889583512   7.101 6.257     G8III/IV 70 0
44 * h UMa PM* 09 31 31.7080711355 +63 03 42.695823224 4.10 4.00 3.67 3.33 3.15 F0V 147 0
45 * tet UMa PM* 09 32 51.4309337983 +51 40 38.333310508 3.67 3.64 3.18 2.74 2.47 F7V 434 0
46 HD 82734 * 09 33 12.4598609496 -21 06 56.603996244   6.027 5.003     K0III 110 0
47 HD 84117 PM* 09 42 14.4162029298 -23 54 56.042043626   5.47 4.94     F9V 233 0
48 * 40 Leo dS* 10 19 44.1672125464 +19 28 15.285966538   5.24   4.5   F6IV-V 288 0
49 * 33 Sex PM* 10 41 24.1859419344 -01 44 29.371097184   7.145 6.250     G9IV 182 0
50 HD 94386 PM* 10 53 32.9043572760 -15 26 45.008353068   7.546 6.340     K2III 48 0
51 * iot Leo SB* 11 23 55.4532319011 +10 31 46.222507078   4.41 4.01     F1IV 289 0
52 * 80 Leo gD* 11 25 50.0566217880 +03 51 36.229759272   6.687 6.354     F2IVnn 62 0
53 * 83 Leo A PM* 11 26 45.3217299671 +03 00 47.156637705 7.78 7.28 6.46 6.0   G9IV-V 259 0
54 * 83 Leo ** 11 26 45.8 +03 00 35 7.63 7.01 6.16     ~ 215 0
55 HD 104055 PM* 11 59 03.3373740552 +00 31 50.448886860   7.440 6.176     K2/3III 45 0
56 HD 104304 SB* 12 00 44.4601479291 -10 26 46.067117528 6.76 6.32 5.55     G8IV 264 0
57 HD 105678 * 12 09 47.0822841600 +74 39 40.879229616 6.880 6.830 6.340 10.8   F6IV 52 0
58 HD 107326 PM* 12 20 17.7523032840 +26 00 06.748402824   6.45 6.10     F0IV 93 0
59 HD 110834 * 12 44 27.0991819848 +44 06 10.821539340   6.796 6.335     F6IVn 65 0
60 HD 117361 PM* 13 28 45.8310369648 +50 43 06.864242700   6.807 6.417     F0IV 54 0
61 HD 119992 PM* 13 45 13.2127893129 +55 52 45.648023595   6.97   6.2   F7V 64 0
62 HD 121146 PM* 13 50 59.1186546840 +68 18 55.076466168       5.7   K2IV 93 0
63 * 95 Vir PM* 14 06 42.8232925008 -09 18 48.654853632   5.807 5.453     F2III 76 0
64 * 14 Boo ** 14 14 05.1793499304 +12 57 33.996726108   6.08   5.2   F8V 186 0
65 HD 125111 PM* 14 16 24.2749599552 +39 44 40.954885440   6.738 6.376     F2IV 68 0
66 HD 125184 PM* 14 18 00.7266638905 -07 32 32.612570668   7.20 6.50     G5IV 186 0
67 HD 125538 * 14 18 55.6906016088 +38 46 02.740216620   7.937 6.866     G9IV 28 0
68 * 18 Boo PM* 14 19 16.2797193624 +13 00 15.483901068   5.788 5.396     F3V 176 0
69 HD 126943 * 14 27 27.4853222040 +41 01 29.684457444   6.991 6.637     F1IV 50 0
70 * g Boo HB* 14 28 37.8128784271 +49 50 41.461525045   6.44   5.1   G4III-IVFe-1 136 0
71 HD 127821 PM* 14 30 46.0701500520 +63 11 08.830919544       5.8   F4IV 88 0
72 * 26 Boo PM* 14 32 32.5421471304 +22 15 36.203742792   6.263 5.897     F2IV 92 0
73 * h Boo PM* 14 49 18.6703382808 +46 06 58.334410512   6.223 5.757     F6IVs 85 0
74 HD 133484 ** 15 03 06.5729464080 +44 38 40.180367508   7.11 6.65     F6IV 83 0
75 HD 136064 PM* 15 14 38.3389842926 +67 20 48.198556893   5.66   4.8   F8V 187 0
76 HD 143584 PM* 15 59 04.3957933224 +49 52 51.758312484   6.304 6.032     F0IV 71 0
77 HD 145148 PM* 16 09 11.2150771435 +06 22 43.289900623   6.97   5.3   K1.5IV 187 0
78 HD 150012 PM* 16 37 48.0102377160 +13 41 13.317934056 6.750 6.740 6.320     F5IV-V 92 0
79 HD 154160 PM* 17 03 10.4447610504 +14 30 40.826805624 7.750 7.300   6.1   G5IV: 77 0
80 V* V2213 Oph BY* 17 05 16.8186610814 +00 42 09.221511649   6.59   5.6   F8.5IV-V 352 0
81 V* V2112 Oph dS* 17 18 52.7880046464 +06 05 07.617219324   6.896 6.514     F1IV-Vn 74 1
82 HD 156846 PM* 17 20 34.3108875144 -19 20 01.491746388 7.20 7.10 6.52     G1V 128 1
83 HD 157347 PM* 17 22 51.2877087336 -02 23 17.439450684   6.965 6.278     G3V 231 0
84 HD 157853 ** 17 24 02.25339 +38 34 58.0208   7.21 6.53     F8IV 78 0
85 HD 158170 PM* 17 28 02.3380700496 -08 12 30.154097412   6.925 6.372     F7V 50 0
86 * psi01 Dra A SB* 17 41 56.0623701456 +72 08 55.927617972   4.98 4.55 4.3   F5IV-V 177 1
87 * mu.01 Her ** 17 46 27.5472960785 +27 43 14.560978925 4.56 4.17 3.42 2.89 2.51 G5IV 719 0
88 HD 162076 * 17 48 24.7678741632 +20 33 55.582920684   6.642 5.687     G5IV 91 0
89 HD 162917 PM* 17 53 14.1856368720 +06 06 05.122217808   6.194 5.759     F4IV-V 105 0
90 * zet Ser PM* 18 00 29.0100539320 -03 41 24.977568563   4.982 4.616     F2V 203 0
91 HD 165438 RG* 18 06 15.1971057528 -04 45 04.508774964   6.726 5.741     K1IV 86 0
92 HD 173949 ** 18 44 18.2661988995 +61 02 53.318272846           G7IV 35 0
93 HD 176095 PM* 18 58 23.7047934144 +06 14 23.744967144   6.667 6.207     F5IV 91 0
94 * b Aql PM* 19 24 58.1999714302 +11 56 39.888480530 6.35 5.93   4.7   G7IVHdel1 522 0
95 * del Aql ** 19 25 29.90139 +03 06 53.2061 3.72 3.68 3.36 3.11 2.95 F1IV-V(n) 247 0
96 HD 184663 PM* 19 35 25.1318853336 +02 54 48.983368176   6.770 6.368     F5V 75 0
97 * 42 Aql PM* 19 37 47.3178819696 -04 38 51.505017792   6.07 5.68     F5Vm 84 0
98 * bet Aql PM* 19 55 18.7928429719 +06 24 24.351242346 5.040 4.560 3.710 3.05 2.56 G8IV 578 0
99 HD 190360 PM* 20 03 37.4050868074 +29 53 48.492435887   6.44   5.2   G7IV-V 490 1
100 HD 190771 PM* 20 05 09.7757965056 +38 28 42.555790200   6.82   5.8   G2V 197 0
101 * b01 Cyg RS* 20 06 21.7672972921 +35 58 20.889117643   6.21   4.8   G8.5IVa 191 0
102 * tet Sge A PM* 20 09 56.6468417712 +20 54 54.097355736   6.886 6.516     F3V 57 0
103 HD 192344 PM* 20 14 09.7715874504 +06 35 20.319826704   8.37 7.70     G4IV 72 0
104 HD 195564 PM* 20 32 23.6946897472 -09 51 12.184220381   6.34 5.65     G2.5IV 175 0
105 * kap Del PM* 20 39 07.7867477765 +10 05 10.291671448   5.77   4.6   G2IV 206 0
106 HD 197373 PM* 20 40 17.8923782424 +60 30 18.953942688       5.7   F6IV 93 0
107 * eta Cep PM* 20 45 17.3751675120 +61 50 19.614231888 4.960 4.320 3.410 2.76 2.27 K0IV 461 0
108 * gam02 Del PM* 20 46 39.4998239664 +16 07 27.458234724   5.26 4.25 4.1   K1IV 192 0
109 HD 201636 PM* 21 06 23.3019303168 +71 25 54.472096488   6.253 5.877     F3IV 44 0
110 HD 201507 PM* 21 09 58.2645083084 +02 56 37.309591367   6.800 6.430     F2V 51 0
111 HD 202582 ** 21 13 42.48263 +64 24 14.2302 7.05 7.00 6.39     G0V 105 0
112 * tau Cyg dS* 21 14 47.49252 +38 02 43.1441 4.140 4.120 3.730 3.38 3.14 F2IV 287 0
113 * 5 Peg PM* 21 37 45.4301717280 +19 19 06.993012540   5.753 5.448     F1IV 84 0
114 * 15 Peg PM* 21 52 29.9168018496 +28 47 36.750679764 5.82 5.95 5.53     F2V 250 0
115 HD 208703 PM* 21 58 13.3082947896 -05 25 29.716576788   6.697 6.331     F2V 53 0
116 HD 210210 * 22 08 17.2380094488 +25 32 36.674452716   6.364 6.072     F1IV 45 0
117 HD 212487 PM* 22 23 54.2528467824 +38 34 25.005700416   6.71   5.9   F5IV: 60 0
118 * sig Peg PM* 22 52 24.0744611045 +09 50 08.394417666   5.63 5.16 4.9   F6V 289 0
119 HD 218101 PM* 23 05 06.2917005960 +16 33 46.233983232   7.27   5.9   G8IV 83 0
120 HD 219291 * 23 14 21.7167672288 +29 46 18.591307932   6.846 6.395     F6IVw 55 0
121 HD 223421 * 23 49 11.9247201288 +58 57 47.524932252   6.754 6.355     F2IV 52 0
122 * ome Psc SB* 23 59 18.6902044464 +06 51 47.960421106       3.8   F4V 152 0

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