1997A&A...322..131F

Query : 1997A&A...322..131F

1997A&A...322..131F - Astronomy and Astrophysics, volume 322131-138 (1997/6-1)

The relationship between lithium and activity in disk population main sequence G and K stars.

FAVATA F., MICELA G. and SCIORTINO S.

Abstract (from CDS):

We present determinations of the lithium abundance (through observations of the LiI 6707.8Å line) in a sample of main sequence stars with spectral types ranging from late F down to M0, selected from the sample of nearby stars which have been observed with the Einstein observatory. We show that lithium abundance is correlated with X-ray luminosity for the cooler stars in our sample (4700>Teff>4000), while no correlation is present for the hotter stars. However, the correlation is almost completely driven by a very small number of high lithium, high X-ray luminosity (and thus plausibly very young) cool dwarfs present in the sample. A number of high lithium K dwarfs are present in the survey, and their characteristics and likely age are discussed in detail.

Abstract Copyright: ∼

Journal keyword(s): stars: abundances - stars: late-type

Simbad objects: 65

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Number of rows : 65
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 * zet Tuc PM* 00 20 04.2586334956 -64 52 29.257190108 4.82 4.80 4.23 3.73 3.40 F9.5V 415 0
2 * 9 Cet BY* 00 22 51.7884553555 -12 12 33.969921319 7.29 7.05 6.39     G2.5V 510 0
3 * 54 Psc PM* 00 39 21.8053928046 +21 15 01.712899720 7.29 6.71 5.88 5.21 4.82 K0.5V 630 1
4 HD 4628 PM* 00 48 22.9759750919 +05 16 50.209484954 7.22 6.64 5.74 4.99 4.52 K2.5V 544 0
5 HD 5294 PM* 00 54 59.2699868136 +24 06 00.974032416   8.03   7.0   G5 91 0
6 HD 7895 ** 01 18 41.0986391699 -00 52 03.237437701   9.19 8.68 8.75   K1V 104 0
7 * p Eri B PM* 01 39 47.5647128524 -56 11 47.213189871   6.692 5.797     K2V 145 0
8 * p Eri A PM* 01 39 47.8126958280 -56 11 35.944312380   6.549 5.685 6.36   K2V 165 0
9 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1354 1
10 HD 13043 PM* 02 07 34.2728076780 -00 37 02.709423012 7.67 7.52 6.90 6.36   G2V 157 1
11 HD 13445 PM* 02 10 25.9181700303 -50 49 25.465181208   6.945 6.117     K1.5V 484 1
12 * 79 Cet PM* 02 35 19.9291748518 -03 33 38.172943076   7.49 6.78     G2V 317 1
13 HD 16160 PM* 02 36 04.9013368983 +06 53 12.383654295   6.81   5.2   K3V 583 0
14 V* FT Cet BY* 02 36 41.7624882231 -03 09 22.094410260 9.768 9.046 8.100 7.578 7.13 K1V 110 0
15 HD 16619 ** 02 39 51.7558060323 +00 08 46.649187038   8.49 7.83 7.6   G4V 96 0
16 HD 17925 RS* 02 52 32.1281856011 -12 46 10.968056223 7.48 6.91 6.05 5.34 4.89 K1V 557 0
17 * kap01 Cet BY* 03 19 21.6964175772 +03 22 12.714979884 5.71 5.52 4.85 4.27 3.91 G5V 948 0
18 * e Eri PM* 03 19 55.6509122226 -43 04 11.215188426 5.20 4.98 4.27 3.65 3.25 G6V 501 1
19 HD 21531 SB* 03 27 52.40603 -19 48 16.1409 10.995 9.712 8.367 7.548 6.818 K5V 132 0
20 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 2073 1
21 * 10 Tau PM* 03 36 52.3837044168 +00 24 05.992097829 5.23 5.15 4.30 4.09 3.77 F9IV-V 595 0
22 HD 24916 PM* 03 57 28.6990190160 -01 09 34.070478444 10.224 9.166 8.014 7.336 6.724 K4V 157 0
23 * omi02 Eri PM* 04 15 16.3196189945 -07 39 10.330779018 5.69 5.25 4.43 3.74 3.29 K0V 879 0
24 HD 28946 PM* 04 33 50.3989924104 +05 23 06.107820360   8.72   7.4   G9V 105 0
25 V* V1005 Ori BY* 04 59 34.8342878424 +01 47 00.669818328   11.48 10.107 9.603 8.239 M0Ve 371 0
26 HD 32147 PM* 05 00 48.9993452248 -05 45 13.224327192 8.27 7.27 6.21 5.36 4.87 K3+V 500 1
27 HD 33811 PM* 05 10 43.1011247232 -44 34 18.415665804   9.48 8.71     G8IV/V 69 0
28 * 111 Tau B PM* 05 23 38.3794959384 +17 19 26.820864372 10.093 9.048 7.919 7.266 6.703 K4V 141 0
29 HD 37656 SB* 05 35 44.1668443368 -62 47 50.133093720   10.46 9.33     K4Vk: 40 0
30 HD 39194 PM* 05 44 31.9179600882 -70 08 36.857795874   8.841 8.075     K0V 147 1
31 HD 44120 PM* 06 16 18.7856158311 -59 12 48.609682671   7.02 6.43     F9.5V 120 0
32 HD 45088 BY* 06 26 10.2546417144 +18 45 24.761018520 8.402 7.74   6.2   K2Ve 255 0
33 HD 50281 PM* 06 52 18.0505442698 -05 10 25.365598911   7.67 6.59     K3.5V 241 0
34 * 9 Pup ** 07 51 46.30295 -13 53 52.9169           G0V 256 0
35 HD 74385 PM* 08 42 07.5168804480 -42 55 45.982020576 9.654 9.018 8.107 7.587 7.137 K2+V 60 0
36 HD 76151 PM* 08 54 17.9470964696 -05 26 04.054298491 6.89 6.67 6.00     G2V 580 0
37 HD 80367 PM* 09 19 28.3123619760 +00 53 49.418553876   9.02   7.6   K0V 86 0
38 HD 82106 PM* 09 29 54.8251829217 +05 39 18.473349688 9.071 8.223 7.197 6.626 6.13 K3V 231 0
39 HD 84117 PM* 09 42 14.4162029298 -23 54 56.042043626   5.47 4.94     F9V 233 0
40 HD 88746 PM* 10 12 55.9096373256 -47 28 31.174993812   9.19 9.15 8.87   G8V 52 0
41 HD 98281 PM* 11 18 22.0116141258 -05 04 02.288928836 8.278 7.993 7.232 6.822 6.438 G8V 184 0
42 HD 99279B PM* 11 24 39.4685177009 -61 38 54.269881790   9.98 8.60   8.98 K7-V(k) 24 0
43 HD 99279 ** 11 24 40.3 -61 38 51           ~ 82 0
44 HD 99279A PM* 11 24 40.3862287109 -61 38 51.311865498   8.769 7.54 7.62 8.86 K5-V 83 0
45 HD 101581 PM* 11 41 02.4684650438 -44 24 18.686737705 9.753 8.833 7.762 7.127 6.584 K4.5Vk: 128 0
46 * bet Vir PM* 11 50 41.7185158616 +01 45 53.001539131 4.26 4.15 3.60 3.13 2.85 F9V 973 0
47 HD 103932 PM* 11 57 56.2063477236 -27 42 25.366588848 9.23 8.114 6.964 6.298 5.758 K4+V 178 0
48 BD+06 2573A PM* 12 15 58.3185651543 +05 38 24.541948758   11.41 10.07     ~ 9 0
49 * e Vir PM* 13 16 46.5148594512 +09 25 26.960139646   5.81   4.8   G0IV 590 1
50 HD 118100 PM* 13 34 43.2063495866 -08 20 31.338030204 11.578 10.552 9.372 8.602 7.930 K5Ve 360 0
51 HD 126053 PM* 14 23 15.2847745835 +01 14 29.641269692 6.98 6.90 6.27 5.71 5.39 G1.5V 442 0
52 * alf Cen B PM* 14 39 35.06311 -60 50 15.0992 2.89 2.21 1.33     K1V 1092 2
53 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1352 1
54 * lam Ser PM* 15 46 26.6142121632 +07 21 11.047378824 5.13 5.03 4.42 3.92 3.60 G0-V 618 0
55 * 70 Oph A SB* 18 05 27.2484131991 +02 30 00.526614953       3.6   K0V 252 0
56 HD 178428 SB* 19 07 57.3202744638 +16 51 12.174804109   6.77 6.07 5.6   G4.5V 200 0
57 * del Pav PM* 20 08 43.6088716052 -66 10 55.442769229 4.78 4.32 3.56 2.95 2.61 G8IV 422 0
58 HD 191408 PM* 20 11 11.9387690214 -36 06 04.351725607   5.44 5.32     K2.5V 294 1
59 HD 191408B PM* 20 11 12.8028949300 -36 06 32.166102762           M3.5 230 1
60 HD 192310 PM* 20 15 17.3913760474 -27 01 58.711625384   6.63 5.723 5.98 8.74 K2+V 359 1
61 HD 204587 PM* 21 30 02.7560054580 -12 30 36.245166319 11.59 10.36 9.075 8.28 7.586 K7Vk: 132 0
62 * eps Ind PM* 22 03 21.6536261624 -56 47 09.522795714   5.75 4.69     K5V 616 0
63 HD 213042 PM* 22 29 15.2363920289 -30 01 06.263701071 9.784 8.742 7.645 7.022 6.513 K4V 169 0
64 V* TW PsA BY* 22 56 24.0525564918 -31 33 56.030584767   7.58 6.48     K4Ve 316 0
65 * iot Psc PM* 23 39 57.0406036160 +05 37 34.653911951 4.640 4.620 4.120 3.68 3.37 F7V 641 0

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