2006A&A...453..717J

Query : 2006A&A...453..717J

2006A&A...453..717J - Astronomy and Astrophysics, volume 453717-722 (2006/7-2)

Lithium abundances for early F stars: new observational constraints for the Li dilution.

JASNIEWICZ G., RECIO-BLANCO A., DE LAVERNY P., PARTHASARATHY M. and DE MEDEIROS J.R.

Abstract (from CDS):

To investigate any correlation between Li abundances and rotational velocities among F-G evolved stars, we study a large sample of early F stars from the Bright Star Catalogue (BSC), most of them classified in the literature as giant stars. Physical parameters and Li abundances are estimated for each star, often for the first time, by comparing observed and synthetic spectra. We analyse the position of the stars in the H-R Diagram based on Hipparcos data using stellar evolutionary tracks and we discuss their Li abundances and projected rotational velocities. Observed stars are mostly on the turnoff, with masses between 1.5 and 2.0M☉. The stars with measured A(Li) abundance show high Li content, most of them with abundance near the cosmic value. The A(Li) versus Vsini diagram shows the same trend as reported in previous studies: fast rotators (Vsini>30km/s) are also stars with high Li content, whereas slow rotators present a wide range of values of A(Li), ranging from no detected Li to the cosmic value.

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Journal keyword(s): stars: evolution - stars: late-type - stars: fundamental parameters - stars: abundances

Simbad objects: 59

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Number of rows : 59
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 * rho And PM* 00 21 07.2687391968 +37 58 06.979645056   5.60 5.18     F5IV-V 140 0
2 HD 2630 PM* 00 29 51.8970081864 -14 51 50.792078448   6.513 6.131     F2/3V 64 0
3 * 65 Psc B PM* 00 49 52.8738026040 +27 42 38.911000608 5.990 6.69 6.28 6.12   F4III 58 0
4 * 65 Psc A PM* 00 49 53.1664217465 +27 42 37.037441270   6.64 6.29 6.27   F5III 52 0
5 HD 5357 PM* 00 56 55.1327072016 +68 46 32.296544040   6.732 6.386     F4III 43 0
6 HD 8634 SB* 01 25 35.6770156104 +23 30 41.460068844   6.625 6.187 14.22   F6V 102 0
7 * chi Cet PM* 01 49 35.1027660619 -10 41 11.070999501 5.04 5.00 4.68 4.38 4.22 F0V 215 0
8 * 14 Ari PM* 02 09 25.3249845242 +25 56 23.416316591   5.318 4.977     F2III 108 0
9 * 12 Tri PM* 02 28 09.9798701064 +29 40 09.585503796 5.680 5.580 5.290     F0III 87 0
10 * 16 Per dS* 02 50 35.0596652199 +38 19 07.114405802   4.57   4.0   F2III 128 0
11 HD 17918 PM* 02 53 11.6950558272 +16 29 00.456532116   6.74 6.30     F5III 68 0
12 * 36 Per PM* 03 32 26.2592647368 +46 03 24.701606568 5.71 5.73 5.32 4.91 4.69 F6III 119 0
13 HD 26923 PM* 04 15 28.8004060272 +06 11 12.698572488 6.910 6.860   5.9   G0IV 236 0
14 HD 34045 * 05 13 59.9493412200 -14 36 24.730914636   6.586 6.210     A9II/III 49 0
15 * 45 Ori * 05 35 39.4841556384 -04 51 21.839576760   5.483 5.234     A9IV/V 76 0
16 HD 36994 ** 05 36 30.1917265176 +25 56 24.614701872   6.959 6.506     F5III 58 0
17 * eta Lep PM* 05 56 24.2934904501 -14 10 03.718335613 4.05 4.05 3.72 3.39 3.23 F2V 352 0
18 HD 41700 SB* 06 04 28.4392966104 -45 02 11.772746376   6.87 6.35     F8V 109 0
19 * 45 Aur SB* 06 21 46.1303030544 +53 27 07.838642844   5.774 5.333     F6III+ 108 0
20 HD 44497 PM* 06 22 36.3924256056 +12 34 12.853157052 6.350 6.300 6.000     F0III 48 0
21 * ksi Gem RG* 06 45 17.3644854477 +12 53 44.141855267 3.85 3.79 3.36 2.97 2.74 F5IV-V 233 0
22 * 48 Gem * 07 12 26.3762241744 +24 07 42.938002164 6.30 6.21 5.85     F5III-IV 77 0
23 * del01 CMi * 07 32 05.9488273416 +01 54 52.126832700   5.448 5.233     F0V 91 0
24 * omi Gem PM* 07 39 09.9346623336 +34 35 03.502791096 5.41 5.30 4.90 4.51 4.29 F5-6IV 113 0
25 HD 71433 SB* 08 27 17.2681026672 -06 24 34.976973924   7.105 6.598     F5III/IV 66 0
26 HD 71766 * 08 28 51.0026082960 -09 44 54.912433452   6.419 5.989     F3/5III 33 0
27 * 4 LMi SB* 08 40 18.2868730128 +31 56 30.816246300 6.660 6.610 6.220     F5III 44 0
28 * b UMa * 08 53 22.5577646328 +61 57 44.158155984 6.150 6.030 5.740     F2III 53 0
29 HD 76292 PM* 08 56 30.5155379784 +40 12 05.303194920 6.310 6.240 5.880     F3III 73 0
30 HD 76990 * 09 15 21.4269235416 +84 10 51.650499396 6.680 6.600 6.280     F2III 33 0
31 HD 82043 SB* 09 29 24.4402345200 -02 12 18.686521656   6.345 6.126     A7/8V+(F/G) 37 0
32 * zet Leo V* 10 16 41.4151642435 +23 25 02.341160368 3.89 3.72 3.41 3.09 2.91 F0IIIa 235 0
33 HD 92787 PM* 10 43 32.8901986032 +46 12 13.947275952   5.51   5.0   F5III 99 0
34 * lam Crt SB* 11 23 21.8814666155 -18 46 48.128136896   5.51 5.09     F5III 120 0
35 * 18 Com * 12 29 27.0424033224 +24 06 32.122207044   5.898 5.468     F5IV 135 1
36 * mu. Vir PM* 14 43 03.6239867612 -05 39 29.524956308 4.25 4.26 3.88 3.48 3.26 F2V 239 0
37 * omi Lib * 15 21 01.3893561336 -15 32 54.065518476   6.513 6.143     F2V 62 0
38 HD 138803 PM* 15 33 52.7058530208 +17 08 14.486229924 6.840 6.800 6.490     F1IV-V 45 0
39 HD 138936 PM* 15 35 04.5813479760 +01 40 09.177696408   6.822 6.550     A9V 44 0
40 * 39 Her SB* 16 41 36.6992519496 +26 55 00.768709236   6.31 5.916     F3V:+F3V: 82 0
41 HD 156971 PM* 17 20 52.6301489136 -10 41 47.077663848   6.791 6.454     A9/F0IV 58 0
42 HD 159026 * 17 30 40.2088708344 +38 52 55.935116436   6.929 6.431     F6IVn 43 0
43 HD 171802 SB* 18 36 27.8342684736 +09 07 20.969709132   5.76 5.39     F5III 109 0
44 * 8 Aql dS* 18 51 22.1582092680 -03 19 04.285074432   6.341 6.056     F0IV 49 0
45 HD 175824 PM* 18 54 47.1269593464 +48 51 33.852890016   6.274 5.836     F3III 62 0
46 HD 178233 PM* 19 06 37.7343393336 +28 37 42.942413568 5.88 5.84 5.55     F0III 69 0
47 V* V4333 Sgr dS* 19 36 26.0756222280 -18 51 10.518287148   6.39 6.12     F0V 42 0
48 * e02 Sgr ** 19 42 31.1329901640 -16 07 26.392911168   5.362 5.045     F3IV/V 72 0
49 V* V1276 Cyg dS* 19 42 49.1113433544 +29 19 54.354520380   6.862 6.525     F1III 81 0
50 V* CN Dra dS* 19 46 44.6580874320 +68 26 16.747554444   6.625 6.331     F0III 66 0
51 * 16 Vul ** 20 02 01.43152 +24 56 16.9534       6.71   F2III 94 0
52 HD 190172 * 20 04 01.1902399632 -07 28 10.174313820   7.07 6.72     F3II 44 0
53 V* V1401 Aql pA* 20 05 05.4136151160 -11 35 57.894584100   6.88 6.39     F2II 119 0
54 HD 199611 * 20 56 25.4774838120 +50 43 42.948296868   6.157 5.820     F0III 61 0
55 HD 203842 PM* 21 24 24.5637219312 +10 10 27.197570460   6.792 6.317     F5III 65 0
56 * 20 Aqr PM* 21 24 51.6752187480 -03 23 54.082320324   6.711 6.375     F0V 43 0
57 HD 207760 PM* 21 51 41.7470578368 -18 37 22.579219164   6.52 6.16     F0V 46 0
58 * mu. Cap PM* 21 53 17.7704445429 -13 33 06.366703913   5.45 5.08     F2V 112 0
59 * 20 Peg PM* 22 01 05.3510084472 +13 07 11.417141100   5.944 5.599     F4III 75 0

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