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


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.09CEST05:06:33

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 - 2020
#notes
1 * ups And PM* 01 36 47.84216 +41 24 19.6443 4.70 4.64 4.10 3.64 3.35 F9V 890 1
2 HD 10780 BY* 01 47 44.8336250528 +63 51 09.007331430 6.84 6.44 5.63 4.99 4.60 K0V 317 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 415 1
4 HD 75289 PM* 08 47 40.3895634256 -41 44 12.456269569 7.04 6.94 6.36     F9VFe+0.3 242 1
5 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 973 1
6 HD 89744 PM* 10 22 10.5623067078 +41 13 46.308754730       5.4   F7V 298 1
7 BD-10 3166 PM* 10 58 28.7842601404 -10 46 13.391758325   10.88 10.01 9.85 9.19 K3.0V 116 1
8 * 47 UMa PM* 10 59 27.9738644892 +40 25 48.922388918   5.66   4.7   G1-VFe-0.5 713 1
9 * 83 Leo ** 11 26 45.32 +03 00 47.2           ~ 207 0
10 * 83 Leo A PM* 11 26 45.3217209044 +03 00 47.158549988 7.78 7.29   6.0   G9IV-V 207 0
11 HD 104304 PM* 12 00 44.4611593182 -10 26 46.055023587 6.76 6.32 5.55     G8IV 211 1
12 * 70 Vir PM* 13 28 25.8081883620 +13 46 43.642951116 5.930 5.680 4.970 4.37 3.98 G4Va 670 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 882 1
14 * eta Boo SB* 13 54 41.07892 +18 23 51.7946 3.440 3.250 2.680 2.24 1.95 G0IV 656 1
15 * alf Cen ** 14 39 29.71993 -60 49 55.9990   0.4 -0.1     G2V+K1V 819 0
16 * rho CrB PM* 16 01 02.6608052290 +33 18 12.642245533   6.01   5.0   G0+VaFe-1 581 1
17 * 14 Her PM* 16 10 24.3152754550 +43 49 03.498734567   7.57   6.1   K0V 406 1
18 * b Aql PM* 19 24 58.2002406780 +11 56 39.882312617 6.35 5.93   4.7   G7IVHdel1 455 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 675 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 794 1
21 HD 187123 PM* 19 46 58.1122608389 +34 25 10.279867125       7.4   G2V 213 1
22 * kap Del PM* 20 39 07.7860368187 +10 05 10.279480343   5.77   4.6   G2IV 183 0
23 HD 210277 PM* 22 09 29.8657193934 -07 32 55.163014863   8.85 8.57 7.36   G8V 297 2
24 * 51 Peg Ro* 22 57 27.9804167474 +20 46 07.782240714 6.39 6.16 5.46 4.97 4.61 G2IV 1072 1

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2020.08.09-05:06:33

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