2019A&A...622A.130B


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.23CEST13:07:42

2019A&A...622A.130B - Astronomy and Astrophysics, volume 622A, 130-130 (2019/2-1)

Stellar ages, masses, and radii from asteroseismic modeling are robust to systematic errors in spectroscopy.

BELLINGER E.P., HEKKER S., ANGELOU G.C., STOKHOLM A. and BASU S.

Abstract (from CDS):


Context. The search for twins of the Sun and Earth relies on accurate characterization of stellar and the exoplanetary parameters age, mass, and radius. In the modern era of asteroseismology, parameters of solar-like stars are derived by fitting theoretical models to observational data, which include measurements of their oscillation frequencies, metallicity [Fe/H], and effective temperature Teff. Furthermore, combining this information with transit data yields the corresponding parameters for their associated exoplanets.
Aims. While values of [Fe/H] and Teff are commonly stated to a precision of ∼0.1dex and ∼100K, the impact of systematic errors in their measurement has not been studied in practice within the context of the parameters derived from them. Here we seek to quantify this.
Methods. We used the Stellar Parameters in an Instant (SPI) pipeline to estimate the parameters of nearly 100 stars observed by Kepler and Gaia, many of which are confirmed planet hosts. We adjusted the reported spectroscopic measurements of these stars by introducing faux systematic errors and, separately, artificially increasing the reported uncertainties of the measurements, and quantified the differences in the resulting parameters.
Results. We find that a systematic error of 0.1 dex in [Fe/H] translates to differences of only 4%, 2%, and 1% on average in the resulting stellar ages, masses, and radii, which are well within their uncertainties (∼11%, 3.5%, 1.4%) as derived by SPI. We also find that increasing the uncertainty of [Fe/H] measurements by 0.1dex increases the uncertainties of the ages, masses, and radii by only 0.01Gyr, 0.02M, and 0.01R, which are again well below their reported uncertainties (∼0.5Gyr, 0.04M, 0.02R). The results for Teff at 100K are similar.
Conclusions. Stellar parameters from SPI are unchanged within uncertainties by errors of up to 0.14dex or 175K. They are even more robust to errors in Teff than the seismic scaling relations. Consequently, the parameters for their exoplanets are also robust.

Abstract Copyright: © ESO 2019

Journal keyword(s): asteroseismology - stars: abundances - stars: low-mass - planets and satellites: fundamental parameters - stars: oscillations - stars: evolution

Errata: erratum vol. 635, art. C2 (2020)

Simbad objects: 97

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Number of rows : 97

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 BD+47 2683 * 18 43 42.4230070169 +47 56 16.007259287   9.85 9.26     G0V 59 0
2 HD 173701 PM* 18 44 35.1192273920 +43 49 59.789089625   8.37 7.52     G8V 139 0
3 KOI-263 Ro* 18 45 05.7920310207 +47 46 27.920191217   11.57 10.82     G0V 43 0
4 BD+46 2555 Ro* 18 47 39.2488304951 +46 41 09.978990968   9.98 9.52     F6IV 44 0
5 BD+47 2703 PM* 18 49 33.6588767037 +47 42 39.607284250   10.16 9.54     F9IV-V 38 0
6 Kepler-128 Ro* 18 49 58.1343934741 +43 58 48.693897585   12.06 11.69     ~ 65 0
7 BD+43 3102 Ro* 18 51 39.5954267000 +43 38 09.732415288   10.10 9.44     G5V 50 0
8 HD 175226 * 18 52 16.4987183752 +43 42 35.795775824   7.91 7.42     F6IV 56 0
9 HD 175289 PM* 18 52 36.1606413704 +45 08 23.343183125   9.95 9.50 9.44   F6IV 84 0
10 BD+44 3020 PM* 18 56 14.3077765754 +44 31 05.389239372   10.45 9.77     G8V 101 1
11 BD+45 2796 PM* 18 56 21.2644967292 +45 30 53.232987726   9.80 9.29     G0.5IV 72 0
12 HD 176071 Er* 18 56 22.1269692202 +45 30 25.359126300   8.81 8.33     F8IV 72 0
13 HD 176153 Ro* 18 56 36.6478619140 +47 39 23.163197712   9.20 8.68     F9IV-V 68 0
14 Kepler-95 Ro* 18 57 55.7885359277 +44 23 52.817055529           G5V 65 0
15 HD 176693 Ro* 18 59 08.6846510375 +48 25 23.598982331   9.34 8.83     F8V 103 0
16 TYC 3132-1582-1 * 19 00 06.9396801760 +44 01 45.056884156   11.53 11.05     F8V 19 0
17 Kepler-129 Ro* 19 01 14.7046862239 +47 50 54.900727924   12.67 11.81     G4V 58 0
18 HD 177153 PM* 19 01 39.6781881955 +41 29 24.325583971   7.76 7.21     G0 93 0
19 BD+40 3567 * 19 01 45.0510349594 +41 04 50.081084856   9.77 9.27     G0.5IV 23 0
20 TYC 3541-2345-1 * 19 02 09.8975762830 +45 16 39.354722755   10.90 10.21     G3V 33 0
21 Kepler-4 * 19 02 27.6981397378 +50 08 08.703759444           G0 88 1
22 HD 177412 ** 19 02 39.4182581022 +43 07 02.952679093   8.38 7.86     F6IV 49 0
23 Kepler-10 Ro* 19 02 43.0613892904 +50 14 28.701617339       11.00   G2V 170 1
24 KOI-268 ** 19 02 54.9122148503 +38 30 25.083904376   11.13 10.59     ~ 47 0
25 HD 177723 * 19 03 45.1359001568 +45 36 30.188777836   9.54 9.10     F8IV 49 0
26 BD+38 3428 PM* 19 05 45.2616790117 +38 31 22.560089042   9.77 9.22     F9IV-V 49 0
27 Kepler-25 Ro* 19 06 33.2143323702 +39 29 16.357969502   11.32 10.77 10.598   ~ 120 1
28 Kepler-1655 Ro* 19 06 45.4642991207 +39 12 42.965564907   11.62 11.05     F5 53 0
29 HD 178509 Ro* 19 06 55.9483071064 +42 40 19.337596523   9.39 8.86     F8IV 44 0
30 BD+42 3247 PM* 19 06 58.3261704119 +42 26 08.264161006   10.32 9.75     G0.5IV 57 0
31 HD 178688 * 19 07 43.5917073663 +41 56 15.729857285   9.48 9.02     F6IV 36 0
32 KOI-269 Ro* 19 09 22.9789618536 +43 22 42.206380677   11.54 11.07     ~ 50 0
33 HD 179070 Ro* 19 09 26.8351401260 +38 42 50.455094310   8.767 8.25 8.00   F6IV 145 1
34 HD 179260 * 19 10 11.6374335186 +38 04 55.826877281   8.94 8.49     F5IV-V 53 0
35 Kepler-510 Ro* 19 10 37.1972005203 +39 14 39.412344898   12.84 12.07     G5V 46 0
36 HD 179732 * 19 11 53.4817719639 +42 06 27.744947398   9.19 8.74     F5IV-V 36 0
37 TYC 3129-1587-1 PM* 19 12 02.2418265719 +42 40 18.806733896   11.49 10.84     ~ 23 0
38 TYC 3121-559-1 * 19 12 16.6298817495 +38 49 03.611425299   10.35 9.75     ~ 28 0
39 Kepler-50 Ro* 19 12 24.2129932892 +50 02 01.370843497   11.02 10.54     F5 92 1
40 BD+40 3638 Ro* 19 14 45.2919793492 +41 09 04.207327203   11.62 10.92     F6IV 97 1
41 TYC 3129-3292-1 * 19 15 08.0776159713 +41 17 55.518976207   11.59 11.00     ~ 20 0
42 HD 180867 * 19 15 54.6869420707 +47 03 40.229155655   8.75 8.24     F6IV 51 0
43 Kepler-103 Ro* 19 15 56.2939568571 +40 03 52.285835449   12.68 11.88     G5Ib 69 0
44 Kepler-92 Ro* 19 16 20.6547345693 +41 33 46.652655624   12.50 11.67     G0IV 65 0
45 BD+39 3706 PM* 19 16 34.9029087477 +40 02 50.362111184       9.1   G1.5V 65 0
46 Kepler-126 * 19 17 23.3506679196 +44 12 30.709880135   10.93 10.51     ~ 63 0
47 HD 234856 Ro* 19 17 45.8021284617 +50 28 48.273320177   9.87 9.32     F9IV-V 68 0
48 HD 181207 PM* 19 17 46.3566541779 +41 24 36.837551319   9.06 8.47     F9IV-V 75 0
49 BD+44 3101 PM* 19 18 33.2047287627 +44 24 16.275460206   11.06 10.37     G2V 31 0
50 Kepler-509 Ro* 19 18 39.4603283949 +48 42 22.287647723           G0V 46 0
51 KOI-5 EB* 19 18 57.5311661752 +44 38 50.617631589           G2V 59 0
52 BD+41 3306 PM* 19 19 00.5488384064 +41 38 04.581624991 10.01 9.67 8.86 8.18 7.66 K0V 231 0
53 KOI-319 Ro* 19 20 28.2087608275 +44 52 22.549012269   12.91 12.68     ~ 47 0
54 BD+43 3221 * 19 20 47.9394314405 +44 09 18.749657280   10.03 9.50     F9IV-V 61 0
55 Kepler-109 Ro* 19 21 34.2535503144 +40 17 05.497631861   12.82 12.93     G4V 65 0
56 BD+48 2887 * 19 22 20.2270265103 +48 41 43.494023410   9.43 9.01     F5IV 37 0
57 BD+43 3228 PM* 19 23 56.4114026497 +43 18 52.534860977   10.84 10.15     G0V 48 0
58 BD+48 2893 * 19 24 07.7660110490 +49 02 24.928201112   10.73 10.08     G1V 103 1
59 BD+41 3338 * 19 24 11.1934178701 +42 03 09.726580716   9.97 9.19     G8IV-V 60 0
60 HD 182756 * 19 24 30.3488994710 +40 19 23.671169678   9.01 8.31     G1V 55 0
61 Kepler-36 Ro* 19 25 00.0430855076 +49 13 54.631289830   12.66 11.94     ~ 179 1
62 Kepler-100 Ro* 19 25 32.6433770205 +41 59 24.944182797   11.86 11.06     ~ 88 0
63 Kepler-145 Ro* 19 25 33.0615390501 +44 31 44.750974233           G1V 58 0
64 BD+38 3583 Ro* 19 25 40.3886092719 +38 40 20.411344230   10.73 10.00     G5V 81 0
65 BD+42 3339 Ro* 19 25 59.3298893410 +42 43 42.482960754   11.56 10.94     F8V 58 1
66 HD 183298 PM* 19 26 22.0908800928 +50 59 14.333199265   8.71 8.16     G0.5IV 80 0
67 TYC 3547-1205-1 * 19 26 30.4912287878 +48 05 34.857185491   10.90 10.38     F5IV 15 0
68 BD+36 3570 Ro* 19 28 19.8470073047 +37 03 35.395152315   9.40 8.97     F8IV 51 0
69 BD+47 2846 Er* 19 28 59.3538131541 +47 58 10.216250846   10.97 10.48     F6V 266 2
70 HD 184401 PM* 19 32 14.5965136348 +45 18 38.296572485   9.63 8.95     G4V 43 0
71 TYC 3560-2509-1 Ro* 19 33 52.7747006983 +47 02 44.510122069   10.76 10.21     G0V 41 0
72 BD+46 2726 * 19 34 43.0023412508 +46 51 09.934561072   10.36 9.64     K0V 101 0
73 KOI-288 EB* 19 34 51.9512818572 +46 13 35.873667673   11.54 11.04     F7V 53 0
74 TYC 3143-53-1 Ro* 19 35 03.7375425270 +42 44 16.720275774   10.31 9.85     F8IV 52 0
75 BD+44 3183 PM* 19 35 50.5740210502 +44 52 50.020113052   9.38 8.92     G0IV 49 0
76 TYC 3135-624-1 PM* 19 36 48.8136899967 +38 42 56.787490867   10.35 9.55     G5IV 63 0
77 BD+44 3197 PM* 19 37 54.5253612516 +44 59 04.628808348       9.3   G0IV 63 0
78 TYC 3556-909-1 PM* 19 37 56.6968956803 +45 57 52.271767840   11.31 10.78     F5 36 0
79 TYC 3135-416-1 * 19 38 10.6798333198 +38 31 00.663701130   10.20 9.72     F5IV-V 26 0
80 TYC 3556-3445-1 PM* 19 40 21.2108165107 +45 29 20.960913818   10.48 9.91     G3V 60 0
81 TYC 3564-2971-1 * 19 41 12.7937687232 +50 33 54.728710112   11.31 10.81     F5V 27 0
82 HD 186306 PM* 19 41 45.6456419949 +43 44 51.713559249   8.70 7.96     G9V 50 0
83 * 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
84 * 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
85 BD+45 2960 Ro* 19 43 12.6576873049 +45 59 17.085962557   10.16 9.64     F6IV 62 0
86 KOI-364 Ro* 19 43 29.3537343599 +42 52 52.080705146   10.81 10.13     G2.5IVa 53 0
87 HD 186700 PM* 19 43 39.6224377398 +48 55 43.808257365   8.86 8.47     F5IV-V 59 0
88 TYC 3557-1752-1 * 19 44 10.6860729268 +45 53 21.114669495   11.39 10.86     ~ 21 0
89 BD+43 3349 Ro* 19 45 23.9646013786 +44 04 35.862805965   10.01 9.51     F6IV 34 0
90 TYC 3565-1235-1 PM* 19 45 45.9641996340 +49 59 18.850030411   10.68 9.84     K1V 31 0
91 HD 234998 PM* 19 46 37.7416540232 +51 01 13.523892663   9.16 8.75     F5 38 0
92 HD 187160 SB* 19 46 41.3660194374 +44 20 54.685297711   7.650 7.083     F9IV-V 82 0
93 HD 187637 PM* 19 49 18.1388420406 +41 34 56.857643338       7.2   F8V 93 0
94 BD+46 2785 PM* 19 49 19.9798812910 +46 49 36.015004709   9.68 9.21     F2V 22 0
95 TYC 3148-521-1 Ro* 19 49 28.8562379599 +43 25 46.429379528   11.22 10.89     F7IV 26 0
96 HD 188819 Ro* 19 54 54.1811994176 +47 08 42.947274296   9.12 8.66     F8IV 52 0
97 HD 190166 PM* 20 01 51.4250664631 +44 21 14.146704965   10.13 9.58     F8V 45 0

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2021.06.23-13:07:42

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