1999MNRAS.305..693C

Query : 1999MNRAS.305..693C

1999MNRAS.305..693C - Mon. Not. R. Astron. Soc., 305, 693-700 (1999/May-3)

Copper and barium abundances in the Ursa Major Moving Group.

CASTRO S., PORTO DE MELLO G.F. and DA SILVA L.

Abstract (from CDS):

We present Cu and Ba abundances for seven GK dwarf stars, members of the solar-metallicity, 0.3-Gyr-old Ursa Major Moving Group. All analysed member stars show [Ba/Fe] excesses of +0.3-plus, associated with [Cu/Fe] deficiencies of up to -0.23 dex. The present results suggest that there is an anticorrelation between the abundances of Cu and the heavy elements produced by the main component of the neutron-capture s-process. Other possible anomalies are Na and C deficiencies with respect to normal solar-metallicity stars. The new data do not confirm the recent claim that the group member HR 6094 is a Ba dwarf star.

Abstract Copyright: 1999 RAS

Journal keyword(s): stars: abundances - Galaxy: abundances - open clusters and associations: individual: Ursa Major

Simbad objects: 26

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Number of rows : 26
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 * 85 Peg SB* 00 02 10.3487193861 +27 04 54.599101714 6.47 6.42 5.75 5.16 4.73 G5VbFe-2 568 0
2 * 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
3 * bet Hyi PM* 00 25 45.07036 -77 15 15.2860 3.52 3.41 2.79 2.28 1.94 G0V 631 0
4 HD 3795 SB* 00 40 32.7939851012 -23 48 17.728718238   6.84 6.14     K0VFe-1.5CH-1.3 227 0
5 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1354 1
6 * chi Cet PM* 01 49 35.1027660619 -10 41 11.070999501 5.04 5.00 4.68 4.38 4.22 F0V 215 0
7 * kap For SB* 02 22 32.5904688744 -23 49 00.479863128   5.802 5.198   4.51 G0V 285 0
8 * eps For SB* 03 01 37.6288785045 -28 05 29.373792325   6.68 5.85     G9:V 203 0
9 HD 26913 BY* 04 15 25.7871375264 +06 11 58.751401236 7.790 7.580 6.920 6.554 6.195 G6V 243 0
10 HD 26923 PM* 04 15 28.8004060272 +06 11 12.698572488 6.910 6.860   5.9   G0IV 236 0
11 * chi01 Ori SB* 05 54 22.9829893 +20 16 34.222038 5.08 5.00 4.40 3.90 3.59 G0V 895 0
12 V* V1386 Ori PM* 06 06 40.4780487600 +15 32 31.578871020 8.016 7.565   6.2   K0V 190 0
13 HD 59984 PM* 07 32 05.7629164512 -08 52 52.775251032   6.431 5.916     G0VFe-1.6CH-0.5 233 0
14 * 171 Pup SB* 07 45 34.9212542040 -34 10 21.185626324   5.909 5.362     F9V 318 0
15 NAME UMa Region reg 11 00 +50.0           ~ 333 0
16 NAME Ursa Major Moving Group MGr 12 32 +57.0           ~ 467 1
17 HD 115043 PM* 13 13 37.0081725552 +56 42 29.759356008   7.423 6.813     G1Va 274 0
18 * e Vir PM* 13 16 46.5148594512 +09 25 26.960139646   5.81   4.8   G0IV 590 1
19 BD-21 3873 Sy* 14 16 34.2914973552 -21 45 50.036218344   12.060 10.684     K2e 91 0
20 HD 147513 PM* 16 24 01.2911377368 -39 11 34.729913940 6.17 6.02 5.376     G5V 389 1
21 HD 165185 PM* 18 06 23.7195191736 -36 01 11.230597272 6.64 6.57 5.95 5.58   G1V 192 0
22 V* LT Del Sy* 20 35 57.2354539608 +20 11 27.506897808           G6III 113 1
23 * phi02 Pav PM* 20 40 02.6374808954 -60 32 56.018592211   5.63 5.121     G0VFe-0.8CH-0.5 184 1
24 * gam Pav PM* 21 26 26.6049826473 -65 21 58.313057521 4.57 4.70 4.22 3.75 3.45 F9VFe-1.4CH-0.7 439 0
25 HD 211415 PM* 22 18 15.6133953371 -53 37 37.466806476   5.98 5.39 6.52   G0V 212 0
26 * sig Peg PM* 22 52 24.0744611045 +09 50 08.394417666   5.63 5.16 4.9   F6V 289 0

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