2005PASJ...57..109T

Query : 2005PASJ...57..109T

2005PASJ...57..109T - Publ. Astron. Soc. Jap., 57, 109-125 (2005/February-0)

Stellar parameters and photospheric abundances of late-G giants: properties of the targets of the Okayama planet search program.

TAKEDA Y., SATO B., KAMBE E., IZUMIURA H., MASUDA S. and ANDO H.

Abstract (from CDS):

begin{HTML} Towards clarifying the properties of late-G giants, for which we are currently conducting a planet-search project at Okayama Astrophysical Observatory, an extensive spectroscopic study has been performed for our first target sample of fifty-seven G6-G9 III stars, in order to establish the atmospheric parameters (<i>T</i><sub>eff</sub>, log <i>g</i>, <i>v</i><sub>t</sub>, and [Fe/H]), the stellar mass along with the evolutionary status, and the photospheric abundances of various elements. It was confirmed that the conventional spectroscopic method of parameter determination using Fe <FONT SIZE="-2">I</FONT>/ <FONT SIZE="-2">II</FONT> lines with the assumption of LTE works successfully for these evolved stars. We determined the abundances (relative to the Sun) of 19 elements, and examined how their [X/Fe] ratios behave themselves with the run of [Fe/H]. While the trends appear to be similar to those exhibited by disk dwarfs for a number of elements, some elements (C, O, Na) showed appreciable anomalies, which may be interpreted as being due to a dredge-up of nuclear-processed material. Since the [Fe/H] values of these stars tend to be somewhat biased towards a subsolar regime, some mechanism of slightly reducing the metallicity might be suspected.

Abstract Copyright: ∼

Journal keyword(s): stars: abundances - - stars: atmospheres - - stars: fundamental parameters - - stars: late-type

VizieR on-line data: <Available at CDS (J/PASJ/57/109): table1.dat table2.dat tablee1a.dat tablee1.dat tablee2.dat average.dat h104985.dat h104985a.dat>

Simbad objects: 57

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Number of rows : 57
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 * 87 Peg PM* 00 09 02.4247431528 +18 12 43.074790956   6.607 5.555     G9III 70 0
2 * 32 And * 00 41 07.1845805160 +39 27 31.189510836   6.22 5.33     G7IIIa 113 0
3 HD 3856 * 00 42 03.4206195912 +66 08 51.335930688   6.866 5.821     G9III-IV 56 0
4 * 62 Psc PM* 00 48 17.4097456152 +07 17 59.749694340   7.026 5.912     G8III 51 0
5 * phi04 Cet HB* 00 58 43.8680525208 -11 22 47.910692424   6.566 5.614     G8III 81 0
6 HD 11037 * 01 48 26.0194155048 +03 41 07.618785792   6.894 5.904     K0III 53 0
7 * 67 Cet PM* 02 16 59.0434344864 -06 25 19.621420896   6.465 5.499     G8.5IIIb 82 0
8 * 64 And * 02 24 24.9159941400 +50 00 23.555997036 6.93 6.17 5.19     G8III 68 0
9 HD 15920 * 02 38 02.0331728856 +72 49 05.710593144   6.063 5.166     G8III 88 0
10 HD 17656 * 02 51 41.7299294160 +46 50 30.990321528   6.762 5.859     G8III 47 0
11 HD 19845 * 03 13 23.8723102200 +48 10 37.040462112   6.915 5.913     K0III 83 0
12 * kap02 Cet PM* 03 21 06.8031794904 +03 40 32.241331308 7.42 6.66 5.69     G9IIIBa0.2 75 0
13 * 37 Eri RG* 04 10 22.5198615504 -06 55 25.866957936   6.383 5.442     G8III 68 0
14 HD 30557 PM* 04 51 09.3214674576 +48 44 26.394386136   6.646 5.643     G9III 56 0
15 * n Tau PM* 05 19 16.6061769240 +22 05 47.421418380   5.894 4.948     G8III 123 0
16 * e Ori * 05 23 56.8277860189 -07 48 29.025349522 5.78 5.08 4.12 3.40 2.90 G8+III 157 0
17 HD 39007 ** 05 50 02.6857306428 +09 52 16.375436948           G8III 64 0
18 * del Lep PM* 05 51 19.2960278488 -20 52 44.730655825 5.54 4.83 3.85 2.99 2.43 K0IIIbFe-1.5CH0.5 222 0
19 * 37 Cam * 06 09 59.0135170848 +58 56 08.494481400   6.450 5.355     G8III 91 0
20 HD 43023 RG* 06 13 54.2339540784 -03 44 28.935892248   6.753 5.833     K0III 77 0
21 HD 45415 * 06 27 20.4505611720 +02 54 29.836279548   6.576 5.543     G8III 77 0
22 HD 55730 PM* 07 14 32.6208643272 +12 06 56.966505516   6.716 5.702     G6III 43 0
23 * 57 Gem PM* 07 23 28.5112982760 +25 03 01.912620384   5.933 5.022     G8II 110 0
24 HD 68312 PM* 08 11 33.0044249688 -07 46 21.140491116   6.259 5.354     G7III-IIIb 97 0
25 HD 68077 * 08 13 50.1852983328 +56 27 08.104009644   6.863 5.850     G9III 50 0
26 HD 68375 * 08 19 32.2890586200 +75 45 24.866403012   6.451 5.541     G8III 71 0
27 HD 71088 PM* 08 29 46.1954937192 +67 17 50.782799544   6.861 5.884     G8III 44 0
28 * tau Cnc * 09 08 00.0501376128 +29 39 15.235678080   6.316 5.420     G8III 99 0
29 HD 79181 PM* 09 11 58.7357718744 -19 44 51.469063116   6.687 5.717     G8III 64 0
30 * 43 Lyn PM* 09 42 00.3424053576 +39 45 28.270330812   6.552 5.610     G8III 88 0
31 * ups01 Hya * 09 51 28.6749789221 -14 50 47.863368049 5.68 5.03 4.11 3.42 2.95 G7III 166 0
32 * ups Leo * 11 36 56.9307649665 -00 49 25.499792021 6.05 5.31 4.30 3.58 3.06 G9IIIbFe-0.5 138 0
33 HD 104985 HB* 12 05 15.1171894272 +76 54 20.642733144       5.2   G8.5IIIb 172 1
34 * 6 CVn PM* 12 25 50.9385584448 +39 01 07.016331180   5.95 5.01     G9III 152 0
35 HD 109272 SB* 12 33 34.2587678832 -12 49 48.735952248   6.437 5.582     G8III/IV 57 0
36 * 2 Boo * 13 41 02.3464437048 +22 29 44.773950840   6.59 5.58     K0III 72 0
37 HD 120048 PM* 13 46 19.0616824776 +38 30 13.044486168   6.868 5.919     G9III 59 0
38 * 32 Boo PM* 14 41 43.5203419224 +11 39 38.383245108   6.50   5.0   G8III 114 0
39 HD 134190 PM* 15 06 16.7173734168 +54 33 22.744582380 6.85 6.21 5.25     G8IIIFe-1 116 0
40 * ome Ser PM* 15 50 17.5468226304 +02 11 47.432004216   6.236 5.217     K0IV 146 1
41 HD 152815 PM* 16 54 55.1703340272 +20 57 30.565908396   6.351 5.387     G8III 83 0
42 HD 158974 * 17 30 55.3731412536 +31 09 29.298907908   6.595 5.633     G8III 57 0
43 HD 161178 * 17 37 08.8834634616 +72 27 20.858215464   6.886 5.869     G9III 79 0
44 HD 163532 * 17 56 47.7441029568 -04 04 54.557790672   6.603 5.439     K2IIICNIb/II 45 0
45 * 71 Oph * 18 07 18.3593981592 +08 44 01.922061912   5.592 4.640     G8III 182 0
46 HD 171391 PM* 18 35 02.3926287840 -10 58 37.942910580   6.027 5.119     G8II/III 140 0
47 HD 176598 * 18 56 25.7183401176 +65 15 29.104305408   6.565 5.621     G8III 63 0
48 HD 176707 * 18 58 59.3969754264 +50 48 32.914773072   7.316 6.338     G8III 39 0
49 * 15 Cyg PM* 19 44 16.6052015928 +37 21 15.682143024   5.830 4.887     G8III 120 0
50 HD 189127 PM* 19 55 22.0658652720 +58 15 00.691287120   7.119 6.100     G9III 28 0
51 * 24 Vul * 20 16 47.0862678744 +24 40 15.964773708   6.248 5.302     G8III 97 0
52 HD 194013 * 20 23 10.6933936608 +05 20 34.733986584   6.279 5.301     G8III-IV 99 0
53 HD 194577 * 20 25 40.5289860792 +21 24 34.718822424   6.603 5.672     G6III 47 0
54 * nu. Aqr PM* 21 09 35.6483238554 -11 22 18.085441011 6.13 5.46 4.52 3.83 3.37 K0III 106 0
55 HD 211554 * 22 16 26.5631295408 +57 13 12.857307492   6.832 5.882     G8III 46 0
56 * tet Aqr PM* 22 16 50.0366846016 -07 46 59.839473115 5.95 5.15 4.16 3.46 2.98 G9II 147 0
57 HD 215030 PM* 22 41 36.0511405296 +41 32 56.847112224 7.650 6.940   5.3   G9III 63 0

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