2014A&A...570A..22T


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST01:44:06

2014A&A...570A..22T - Astronomy and Astrophysics, volume 570A, 22-22 (2014/10-1)

Heavy elements in old very metal-rich stars.

TREVISAN M. and BARBUY B.

Abstract (from CDS):

We studied a sample of high proper motion, old and metal-rich dwarf stars, selected from the NLTT catalogue. The low pericentric distances and eccentric orbits of these solar neighbourhood stars indicate that they might have originated in the inner parts of the Galaxy. Chemical tagging can probe the formation history of stellar populations. To identify the origin of a sample of 71 very metal-rich dwarf stars, we derive the abundances of the neutron-capture elements Y, Ba, La, and Eu. The spectroscopic analysis is based on optical high-resolution echelle spectra obtained with the FEROS spectrograph at the ESO 1.52m Telescope at La Silla, Chile. The abundances of Y, Ba, La, and Eu were derived through LTE analysis, employing the MARCS model atmospheres. The abundances of Y, Ba, La, and Eu vs. Fe and Mg as the reference elements indicate similarities between our sample of old metal-rich dwarf stars and the thin disk. On the other hand, the abundance ratios using O as the reference element, as well as their kinematics, suggest that our sample is clearly distinct from the thin-disk stars. They could be old inner thin-disk stars, as suggested previously, or bulge stars. In either cases, they would have migrated from the inner parts of the Galaxy to the solar neighbourhood.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: atmospheres - solar neighborhood

VizieR on-line data: <Available at CDS (J/A+A/570/A22): abunds.dat>

Simbad objects: 73

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Number of rows : 73

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 CD-32 327 PM* 00 50 14.7476400625 -31 19 57.980774566   11.44 10.50     ~ 9 0
2 BD-02 180 PM* 01 13 20.9291301838 -01 43 45.596922307   11.01 10.06     K0 16 0
3 HD 8389 PM* 01 23 02.6387836288 -12 57 57.845487763   8.74 7.84     K0VCN+2 84 0
4 HD 9174 PM* 01 30 01.0023146497 -19 36 16.207014357   9.14 8.37     G8IV 23 0
5 HD 9424 PM* 01 31 22.1686991713 -58 43 11.625773285   9.97 9.17     G8V 29 0
6 HD 10576 PM* 01 40 32.2396866712 -69 59 13.096160860   9.08 8.50     G0/1V 25 0
7 HD 11608 PM* 01 53 31.4443552434 -21 15 09.823090068   10.26 9.28     K1/2V 23 0
8 HD 12789 PM* 02 04 06.5015833049 -46 22 29.040179168   9.59 8.89     G8/K0III+F 14 0
9 HD 13386 PM* 02 10 08.0352963228 -31 04 11.531964154   9.79 8.91     K0V 33 0
10 HD 15133 PM* 02 25 32.8919217579 -28 59 15.653739633   10.26 9.31     K1III 14 0
11 HD 15555 RG* 02 29 34.0169293600 -24 06 14.273554673   8.39 7.34     K1III 35 0
12 HD 16905 PM* 02 40 03.1900953471 -61 21 15.279674096   10.46 9.46     K3V 23 0
13 HD 25061 PM* 03 56 25.2983026195 -52 55 51.125805406   10.11 9.26     K1V 49 0
14 HD 26151 PM* 04 07 20.7228703929 -27 25 32.380275479   9.34 8.50     K1V 50 0
15 HD 26794 PM* 04 14 30.2992419265 +03 01 19.390381638   9.78   8.2   K3V 69 0
16 HD 27894 PM* 04 20 47.0464176987 -59 24 39.023101746   10.42 9.42     K2V 64 1
17 HD 30295 PM* 04 42 19.9770098944 -61 37 14.492159807   9.60 8.83     K0/1V 32 0
18 HD 31452 PM* 04 56 10.6943880053 +02 56 03.040237515   9.28   7.8   G8/K0IV 51 0
19 HD 31827 PM* 04 56 18.3105228922 -51 02 51.051081083   9.03 8.24     G8IV 34 0
20 HD 35854 PM* 05 26 14.7381497081 -32 30 17.136914044 9.431 8.673 7.711 7.184 6.7 K2/3V 68 0
21 HD 37986 PM* 05 41 53.6864867679 -15 37 49.950607223   8.16 7.37     G8+VCN+1 84 0
22 HD 39213 PM* 05 49 16.4873113174 -37 30 48.085764436   9.79 8.93     K0V 30 0
23 HD 39715 PM* 05 54 28.5764090262 +02 08 32.042623455   9.86   8.1   K3V 75 0
24 HD 43848 PM* 06 16 31.3569620776 -40 31 54.785883417   9.57 8.64     K2IV 30 1
25 HD 77338 PM* 09 01 12.4937500947 -25 31 37.433309411   9.47 8.59     K0IV 52 1
26 G 161-29 PM* 09 25 42.4168686041 -06 46 19.444758478   12.49 11.29     ~ 16 0
27 HD 81767 PM* 09 27 09.2787005050 -16 39 43.128812532   10.41 9.47     K2(III) 27 0
28 HD 82943 PM* 09 34 50.7352288445 -12 07 46.363303103   7.17 6.53     F9VFe+0.5 401 2
29 HD 86065 PM* 09 55 42.5148050863 -18 06 26.659813908   10.31 9.34     K2.5V 36 0
30 HD 86249 PM* 09 56 12.5053439962 -40 47 13.063088185   9.96 8.98     K2.5V 44 0
31 HD 87007 PM* 10 01 58.5855824249 -10 24 19.428657283   9.60 8.73     K0V 31 0
32 HD 90054 PM* 10 23 43.4476310299 +02 37 09.632591495       7.5   F8V 33 0
33 HD 91585 PM* 10 33 57.1206346371 -29 32 00.654220889   10.33 9.42     K2V 19 0
34 HD 91669 PM* 10 34 54.4254141568 -13 47 16.624321381   10.62 9.70     K0/1III 16 0
35 HD 93800 PM* 10 49 31.6947561192 -06 46 10.498094370   10.00 9.10     K1III 23 0
36 HD 94374 PM* 10 53 22.5034084807 -14 22 28.209578058   10.21 9.25     K3V 18 0
37 HD 95338 PM* 10 59 26.3037630802 -56 37 22.947260490   9.50 8.62     K1IV-V 42 0
38 HD 104212 PM* 12 00 03.3630483267 -46 47 03.083704346   9.04 8.38     G3V 43 0
39 HD 107509 PM* 12 21 44.4663533229 -61 32 19.488448861   8.49 7.92     F8V 29 0
40 HD 120329 PM* 13 50 16.3071686178 -57 15 43.124216859   9.08 8.34     G3/5V 31 0
41 HD 143102 PM* 16 01 12.7603924247 -56 41 41.734552601   8.62 7.88     G6IV/V 24 0
42 HD 148530 PM* 16 28 35.9494457498 +03 15 10.629192773   9.59   8.3   G8/K0V 53 0
43 HD 149256 PM* 16 35 06.7552562608 -36 03 42.002377256   9.26 8.40     G8IV 16 0
44 HD 149606 PM* 16 37 36.1134097732 -40 53 17.006225424   9.91 8.94     K2.5V 40 0
45 HD 149933 PM* 16 37 45.8504241536 +00 02 24.602283892       7.6   K0V 51 0
46 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11540 0
47 HD 165920 PM* 18 09 17.6785119177 -22 54 30.384337081   8.74 7.88     K1IV 48 0
48 HD 168714 PM* 18 24 14.5926007038 -55 03 20.608013111   9.66 8.89     G6III/IV 10 0
49 HD 171999 SB* 18 37 58.8185592912 -06 48 19.718541113   9.18 8.30 7.8   K0IV/V 71 1
50 HD 177374 PM* 19 04 45.0803671500 -07 27 21.673644823   10.38 9.40     K1V 13 0
51 HD 179764 PM* 19 14 12.0884537057 -09 58 17.619273774   9.82 9.05     K0V 16 0
52 HD 181234 PM* 19 20 00.0972218692 -09 19 24.958754626   9.44 8.59     G8IV 41 0
53 HD 180865 PM* 19 22 49.6661241680 -66 09 07.034103300   9.87 8.92     K2V 27 0
54 * b Aql PM* 19 24 58.2002406780 +11 56 39.882312617 6.35 5.93   4.7   G7IVHdel1 455 0
55 HD 181433 PM* 19 25 09.5672280149 -66 28 07.676289768   9.42 8.38     K3III-IV 100 1
56 BD-17 6035 PM* 20 36 53.3232087569 -16 45 54.973269276   11.38 10.143 10.128   K4V 13 0
57 HD 196397 PM* 20 37 25.5557180719 -11 52 15.816129793   9.78 8.95     G8/K0V 24 0
58 HD 196794 PM* 20 39 22.0508427303 +10 04 32.647495220   9.47   7.9   K2IV 29 0
59 HD 197921 PM* 20 49 10.1944018938 -54 46 39.851841092   10.20 9.25     K3V 31 0
60 HD 201237 PM* 21 08 41.6961212267 -19 59 41.424238394   11.33 10.15     K2(III) 14 0
61 HD 209721 PM* 22 08 22.5079907598 -69 17 13.078310947   10.32 9.49     G8IV/V 11 0
62 HD 211706 PM* 22 19 07.7663208558 -07 18 48.945684923   9.48 8.86     G2/3V 34 0
63 BD-05 5798 PM* 22 28 19.6223220631 -04 50 06.693441455   11.36 10.34     ~ 6 0
64 HD 213996 PM* 22 35 05.6671006951 +11 52 53.061682077       8.2   K2 38 0
65 HD 214463 PM* 22 38 47.9659319438 -30 12 37.202706938   10.60 9.61     K1III/IV 10 0
66 CD-40 15036 PM* 23 08 31.2728329543 -39 22 33.173799264   10.90 10.04     ~ 11 0
67 HD 218566 PM* 23 09 10.7270065995 -02 15 38.685368766   9.641 9.208 9.105 8.73 K3V 81 1
68 HD 218750 PM* 23 11 01.5286279397 -50 58 06.393695808   10.16 9.26     K1V 45 0
69 HD 221313 PM* 23 31 17.2438977062 -33 04 34.589912068   10.76 9.83     K1(III) 11 0
70 HD 221974 PM* 23 36 45.7795097633 -17 14 12.488094608   10.21 9.33     K1III 45 0
71 HD 224230 PM* 23 56 10.2724118230 -72 00 07.845455012   10.91 9.94     K3(V) 20 0
72 HD 224383 PM* 23 57 33.5186236762 -09 38 51.070720084   8.51 7.88     G3V 97 0
73 NAME Galactic Bar reg ~ ~           ~ 894 0

    Equat.    Gal    SGal    Ecl

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2020.07.10-01:44:06

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