2015ApJ...812...96G


Query : 2015ApJ...812...96G

2015ApJ...812...96G - Astrophys. J., 812, 96 (2015/October-3)

Beyond the main sequence: testing the accuracy of stellar masses predicted by the PARSEC evolutionary tracks.

GHEZZI L. and JOHNSON J.A.

Abstract (from CDS):

Characterizing the physical properties of exoplanets and understanding their formation and orbital evolution requires precise and accurate knowledge of their host stars. Accurately measuring stellar masses is particularly important because they likely influence planet occurrence and the architectures of planetary systems. Single main-sequence stars typically have masses estimated from evolutionary tracks, which generally provide accurate results due to their extensive empirical calibration. However, the validity of this method for subgiants and giants has been called into question by recent studies, with suggestions that the masses of these evolved stars could have been overestimated. We investigate these concerns using a sample of 59 benchmark evolved stars with model-independent masses (from binary systems or asteroseismology) obtained from the literature. We find very good agreement between these benchmark masses and the ones estimated using evolutionary tracks. The average fractional difference in the mass interval ∼0.7-4.5 M{#8857} is consistent with zero (-1.30±2.42%), with no significant trends in the residuals relative to the input parameters. A good agreement between model-dependent and -independent radii (-4.81±1.32%) and surface gravities (0.71±0.51%) is also found. The consistency between independently determined ages for members of binary systems adds further support for the accuracy of the method employed to derive the stellar masses. Taken together, our results indicate that determination of masses of evolved stars using grids of evolutionary tracks is not significantly affected by systematic errors, and is thus valid for estimating the masses of isolated stars beyond the main sequence.

Abstract Copyright:

Journal keyword(s): asteroseismology - binaries: general - stars: evolution - stars: fundamental parameters

Simbad objects: 77

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Number of rows : 77
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 OGLE SMC130.5 4296 EB* 00 33 47.9299552248 -73 04 28.056762084 18.39 18.09 16.99   15.55 ~ 14 0
2 OGLE J004402.68-725422.5 EB* 00 44 02.6740281360 -72 54 22.960574820 18.63 17.85 16.65   15.45 ~ 15 0
3 OGLE J004822.69-724848.6 EB* 00 48 22.6937097888 -72 48 48.976132716   17.94 17.17 16.81 16.22 ~ 18 0
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10361 1
5 OGLE SMC-SC8 201484 EB* 01 00 18.0420727800 -72 24 07.781696460   16.07 15.21 14.69 14.21 ~ 17 0
6 CD-80 28 EB* 01 05 38.2158877272 -80 03 40.694700276   10.98 10.25     K2 14 0
7 OGLE SMC725.12.000065 EB* 01 06 10.3381691472 -72 06 25.181596584     15.769 15.16 14.702 ~ 18 0
8 V* AI Phe EB* 01 09 34.1924055096 -46 15 56.071719360   9.26 8.60     G3V 140 0
9 V* TZ For EB* 03 14 40.0925678952 -35 33 27.594929088   7.620 6.878     F7III+G8III 126 0
10 * del Eri * 03 43 14.9005379551 -09 45 48.210955899 5.13 4.46 3.54 2.82 2.32 K0+IV 575 0
11 V* CF Tau EB* 04 05 10.1356988304 +22 29 48.075517860   11.19 10.24     G0 50 0
12 * tet01 Tau SB* 04 28 34.4960341 +15 57 43.849432 5.510 4.780 3.840 5.48   G9IIIFe-0.5 479 0
13 * eps Tau ** 04 28 37.0002551195 +19 10 49.563140930 5.42 4.54 3.53     G9.5IIICN0.5 569 1
14 OGLE LMC-ECL-1866 EB* 04 52 15.2769484488 -68 19 10.222622148     15.986 15.453 15.010 ~ 20 0
15 OGLE LMC-ECL-3160 LP* 04 55 51.4783969128 -69 13 47.925605388     16.83 15.978 15.869 ~ 25 0
16 2MASS J05043288-6920509 LP* 05 04 32.8759490616 -69 20 51.030442032     15.62 14.736 14.659 ~ 23 0
17 OGLE J051019.64-685812.3 EB* 05 10 19.65 -68 58 12.0     16.673   15.715 ~ 30 0
18 2MASS J05114945-6705451 LP* 05 11 49.4660106384 -67 05 45.128063004     16.21 15.70 15.130 ~ 20 0
19 2MASS J05140190-6841184 LP* 05 14 01.908 -68 41 18.41     16.58 16.04 15.377 ~ 20 0
20 2MASS J05140595-6915568 LP* 05 14 05.9513254032 -69 15 56.782018224     16.56 15.639   ~ 21 1
21 * alf Aur SB* 05 16 41.35871 +45 59 52.7693 1.33 0.88 0.08 -0.52 -0.96 G3III: 1161 0
22 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16242 1
23 2MASS J05252555-6933044 LP* 05 25 25.550 -69 33 04.49     17.01 16.40 15.620 ~ 25 0
24 HD 49566 RG* 06 49 23.7091935264 +09 34 54.469715412   8.60 7.71     G5 17 0
25 HD 50890 RG* 06 54 58.9171473552 -02 48 12.922874748   7.112 6.017     K2III 36 0
26 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1079 1
27 NGC 2682 193 RG* 08 51 35.7789056016 +11 53 34.748492712 13.904 13.22 12.267   11.228 K0III 90 0
28 * zet Hya PM* 08 55 23.6261352 +05 56 44.035380 4.92 4.10 3.10 2.39 1.90 G8.5III 234 0
29 * ksi Hya ** 11 33 00.1150559 -31 51 27.443449 5.17 4.47 3.54 2.84 2.36 G7IIIb 247 0
30 * 11 Com PM* 12 20 43.0257695904 +17 47 34.327512348   5.74 4.74     G8+IIIFe-1 156 1
31 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2234 0
32 * bet UMi V* 14 50 42.32580 +74 09 19.8142 5.32 3.55 2.08 0.97 0.21 K4-III 316 0
33 * iot Dra V* 15 24 55.7746265 +58 57 57.834445 5.68 4.45 3.29 2.51 1.91 K2III 391 1
34 V* RT CrB RS* 15 38 03.0315653496 +29 29 13.957089684   10.97 10.22     G0 91 0
35 * eps Oph PM* 16 18 19.2897431 -04 41 33.034466 4.95 4.21 3.23 2.54 2.05 G9.5IIIbFe-0.5 229 0
36 * eta Her PM* 16 42 53.7650947 +38 55 20.112868 5.03 4.42 3.50 2.83 2.35 G7IIIFe-1 277 0
37 * bet Oph PM* 17 43 28.3526482 +04 34 02.295484 5.150 3.930 2.750 1.96 1.38 K2IIICN0.5 464 0
38 * eta Ser PM* 18 21 18.6005560 -02 53 55.776595 4.84 4.19 3.25 2.55 2.05 K0III-IV 365 0
39 HD 169370 RG* 18 24 42.1276395144 -07 04 33.358617480   7.447 6.296     K0/1III 25 0
40 ASAS J182510-2435.5 EB* 18 25 10.0236615120 -24 35 24.123858468   12.02 10.87     ~ 7 0
41 V* V1980 Sgr EB* 18 25 24.5199318864 -25 10 40.004098284   11.51 10.30     K5 12 0
42 HD 169751 RG* 18 26 29.7673546320 -07 07 36.794959176   9.60 8.37     K0III 14 0
43 HD 170008 RG* 18 27 01.6338760920 +09 12 34.551685980   8.25 7.40     G5 29 0
44 HD 170031 RG* 18 27 07.3920153504 +06 04 11.370800388   9.43 8.20     G8 15 0
45 HD 169730 * 18 27 10.0233494448 -24 01 00.236942580   10.75 10.26     A8/9V 7 0
46 HD 170053 RG* 18 27 14.2812461280 +07 00 32.752668024   8.728 7.301     K0IIb 39 0
47 HD 170174 RG* 18 27 54.7371519576 +06 36 00.341804160   9.39 8.31     G9IIIFe0.5: 63 0
48 HD 170231 RG* 18 28 00.1840379880 +06 54 51.426979884   9.72 8.69     G8IIb 40 0
49 BD+47 2682 RG* 18 43 28.3036240416 +47 42 13.084886556   10.45 9.45     K0 19 0
50 TYC 3130-2385-1 EB* 18 48 38.0888392752 +44 29 09.855904776   12.18 11.33     ~ 49 0
51 HD 175080 RB? 18 51 48.6666298920 +41 27 54.504095472   8.31 7.35     K0 12 0
52 HD 175955 RG* 18 55 33.3263357328 +47 26 26.786309568   8.18 7.02     K0 26 0
53 HD 175679 * 18 56 25.6038477048 +02 28 16.285513332   7.106 6.132     G8III 41 1
54 HD 177151 HB* 19 01 06.5479845288 +48 02 07.980905544   8.02 7.04     K0 25 0
55 Kepler-91 RG* 19 02 41.4978337152 +44 07 00.239709792           K1IV 78 1
56 HD 177858 HB* 19 04 43.3767371448 +38 53 53.602042128   9.97 9.06     K0 20 0
57 BD+44 3057 HB* 19 04 50.6278334640 +44 41 28.694202756   9.80 8.65 8.316   K0III 22 0
58 HD 178484 RG* 19 08 52.2470089728 -02 17 13.879989852   7.874 6.587     K2III 18 0
59 HD 179421 HB* 19 10 50.6161659624 +39 10 17.977985760   9.36 7.7957     K5 23 0
60 HD 181677 HB* 19 18 40.8909466584 +52 14 50.595579204 10.060 9.000 7.880     K0 17 0
61 BD+46 2666 HB* 19 19 37.5751591344 +46 29 39.628007916   10.68 9.80     K0 27 0
62 HD 181827 RG* 19 19 55.0668456840 +45 01 55.569355824   8.20 7.19     K0 22 0
63 HD 181907 RG* 19 22 21.5480809056 -00 15 08.508393504   6.906 5.811     K1III 58 0
64 HD 182736 Er* 19 24 03.3792608280 +44 56 00.738992328   7.82 7.01     G8IV 67 0
65 HD 183159 PM* 19 26 19.3088534112 +41 52 12.722677572   9.26 8.58     G1V 40 0
66 TYC 3547-478-1 PM* 19 26 29.0625819360 +48 42 43.526835576   11.66 10.95     G5IV-V 29 0
67 HD 183507 HB* 19 27 45.4830450912 +47 32 12.955274196   8.70 7.66     K0 21 0
68 HD 184148 HB* 19 31 18.1424176416 +42 59 13.178005692   8.22 7.17     K0 16 0
69 Kepler-56 RG* 19 35 02.0011980936 +41 52 18.692360400           ~ 154 1
70 HD 185351 PM* 19 36 37.9768465728 +44 41 41.761562352   6.109 5.169     G8.5IIIbFe-0.5 135 0
71 HD 187104 HB* 19 46 18.9941463648 +44 33 54.090440532   8.62 7.56     K0 17 0
72 HD 187878 HB* 19 50 25.5249398640 +43 39 40.307605992   8.11 7.13     K0 14 0
73 HD 188057 HB* 19 50 55.2816843936 +49 42 00.984595644   8.27 7.26     G5 16 0
74 * bet Aql PM* 19 55 18.7928429719 +06 24 24.351242346 5.040 4.560 3.710 3.05 2.56 G8IV 535 0
75 HD 189349 HB* 19 58 02.3821110168 +40 55 36.634270476   8.19 7.31     G4III-IV 28 0
76 * nu. Ind ** 22 24 36.8853892493 -72 15 19.488237466   5.94 5.29     G9VFe-3.1CH-1.5 264 0
77 * gam Psc PM* 23 17 09.9374911 +03 16 56.237975 5.20 4.62 3.70 2.98 2.47 G9III:Fe-2 260 0

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2022.09.26-07:53:44

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