2001A&A...367..253F


Query : 2001A&A...367..253F

2001A&A...367..253F - Astronomy and Astrophysics, volume 367, 253-265 (2001/2-3)

The nature of super-metal-rich stars. Detailed abundance analysis of 8 super-metal-rich star candidates.

FELTZING S. and GONZALEZ G.

Abstract (from CDS):

We provide detailed abundance analyses of 8 candidate super-metal-rich stars. Five of them are confirmed to have [Fe/H]>0.2dex, the generally-accepted limit for super-metal-richness. Furthermore, we derive abundances of several elements and find that the stars follow trends seen in previous studies of metal-rich stars. Ages are estimated from isochrones and velocities calculated. We find that there do exist very metal-rich stars that are older than 10Gyr. This is contrary to what is found in several recent studies of the galactic age-metallicity relation. This is tentative evidence that there might not exist a one-to-one relation between age and metallicity for all stars. This is not surprising considering the current models of the independent evolution of the different galactic components. We also find that one star, HD 182572, could with ∼75% chance be a thick disk star with, for the thick disk, an extremely high metallicity at 0.34 dex. This star is, intriguingly, also somewhat enhanced in the α-elements.

Abstract Copyright:

Journal keyword(s): stars: abundances, fundamental parameters, late-type, individual: HD 10780, HD 32147, HD 99491, HD 104304, HD 121370, HD 145675, HD 196755, HD 182572 - Galaxy: solar neighbourhood

Simbad objects: 24

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Number of rows : 24
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 * ups And PM* 01 36 47.84216 +41 24 19.6443 4.70 4.64 4.10 3.64 3.35 F9V 904 1
2 HD 10780 BY* 01 47 44.8336250528 +63 51 09.007331430 6.84 6.44 5.63 4.99 4.60 K0V 323 0
3 HD 32147 PM* 05 00 48.9991346145 -05 45 13.220341956 8.27 7.27 6.21 5.36 4.87 K3+V 422 1
4 HD 75289 PM* 08 47 40.3895634256 -41 44 12.456269569 7.04 6.94 6.36     F9VFe+0.3 254 1
5 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 1009 1
6 HD 89744 PM* 10 22 10.5623067078 +41 13 46.308754730       5.4   F7V 309 1
7 BD-10 3166 PM* 10 58 28.7842601404 -10 46 13.391758325   10.88 10.01 9.85 9.19 K3.0V 120 1
8 * 47 UMa PM* 10 59 27.9738644892 +40 25 48.922388918   5.66   4.7   G1-VFe-0.5 729 1
9 * 83 Leo A PM* 11 26 45.3217209044 +03 00 47.158549988 7.78 7.28 6.46 6.0   G9IV-V 216 0
10 * 83 Leo ** 11 26 45.8 +03 00 35 7.63 7.01 6.16     ~ 209 0
11 HD 104304 PM* 12 00 44.4611593182 -10 26 46.055023587 6.76 6.32 5.55     G8IV 218 0
12 * 70 Vir PM* 13 28 25.8081883620 +13 46 43.642951116 5.930 5.680 4.970 4.37 3.98 G4Va 684 1
13 * tau Boo Ro* 13 47 15.74340 +17 27 24.8552 5.02 4.98 4.49 4.09 3.85 F7IV-V 912 1
14 * eta Boo SB* 13 54 41.07892 +18 23 51.7946 3.440 3.250 2.680 2.24 1.95 G0IV 666 1
15 * alf Cen ** 14 39 29.71993 -60 49 55.9990   0.4 -0.1     G2V+K1V 857 0
16 * rho CrB PM* 16 01 02.6608052290 +33 18 12.642245533   6.01   5.0   G0+VaFe-1 595 1
17 * 14 Her PM* 16 10 24.3152754550 +43 49 03.498734567   7.57   6.1   K0V 417 1
18 * b Aql PM* 19 24 58.2002406780 +11 56 39.882312617 6.35 5.93   4.7   G7IVHdel1 463 0
19 * 16 Cyg A ** 19 41 48.9539315338 +50 31 30.218780803 6.79 6.59 5.95 5.50 5.17 G1.5Vb 693 1
20 * 16 Cyg B PM* 19 41 51.9731830550 +50 31 03.086127222 7.07 6.86 6.20 5.76 5.42 G3V 815 1
21 HD 187123 PM* 19 46 58.1122608389 +34 25 10.279867125       7.4   G2V 224 1
22 * kap Del PM* 20 39 07.7860368187 +10 05 10.279480343   5.77   4.6   G2IV 188 0
23 HD 210277 PM* 22 09 29.8657193934 -07 32 55.163014863   8.85 8.57 7.36   G8V 308 1
24 * 51 Peg PM* 22 57 27.9804167474 +20 46 07.782240714 6.39 6.16 5.46 4.97 4.61 G2IV 1096 1

    Equat.    Gal    SGal    Ecl

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2021.07.29-00:13:11

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