2016A&A...591A..99P


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.24CET22:35:06

2016A&A...591A..99P - Astronomy and Astrophysics, volume 591A, 99-99 (2016/7-1)

Asteroseismology of 19 low-luminosity red giant stars from Kepler.

PEREZ HERNANDEZ F., GARCIA R.A., CORSARO E., TRIANA S.A. and DE RIDDER J.

Abstract (from CDS):

Context. Frequencies of acoustic and mixed modes in red giant stars are now determined with high precision thanks to the long continuous observations provided by the NASA's Keplermission. Here we consider the eigenfrequencies of nineteen low-luminosity red giant stars selected in a recent publication for a detailed peak-bagging analysis.
Aims. Our objective is to obtain stellar parameters by using individual mode frequencies and spectroscopic information.
Methods. We use a forward modelling technique based on a minimization procedure combining the frequencies of the p-modes, the period spacing of the dipolar modes, and the spectroscopic data.
Results. Consistent results between the forward modelling technique and values derived from the seismic scaling relations are found but the errors derived using the former technique are lower. The average error for logg is 0.002dex, compared to 0.011dex from the frequency of maximum power, νmax, and 0.10dex from the spectroscopic analysis. Relative errors in the masses and radii are on average 2% and 0.5% respectively, compared to 3% and 2% derived from the scaling relations. No reliable determination of the initial helium abundances and the mixing length parameters could be made. Finally, for our grid of models with given input physics, we found that low-mass stars require higher values of the overshooting parameter.

Abstract Copyright: © ESO, 2016

Journal keyword(s): asteroseismology - stars: general - stars: interiors

Simbad objects: 19

goto Full paper

goto View the reference in ADS

Number of rows : 19

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 2MASS J18472107+4434313 RG* 18 47 21.0833940789 +44 34 31.329486540   12.65 12.06     G6V 25 0
2 2MASS J18544865+4708163 RG* 18 54 48.6615469249 +47 08 16.322132886   13.41 11.44     ~ 18 0
3 2MASS J18545589+4721270 RG* 18 54 55.8951249260 +47 21 27.131985175           K1III 19 0
4 KIC 9267654 RG* 19 00 07.4662980202 +45 45 32.504907285           K1IV 26 0
5 KIC 9882316 RG* 19 10 58.6391649247 +46 46 53.811250993           G8IV-V 25 0
6 BD+45 2850 RG* 19 11 32.5346593122 +45 31 22.605744199   10.95 10.05     G8III 32 0
7 KIC 10200377 RG* 19 14 43.1345582265 +47 16 57.041167112   13.02 12.12 11.90   G8IV-V 19 0
8 KIC 12008916 RG* 19 16 23.1885554023 +50 25 37.851149303   13.53 11.94     K1III 20 0
9 2MASS J19193459+4128508 RG* 19 19 34.5940948128 +41 28 51.058611564   11.93 10.78     K2III 25 0
10 BD+38 3559 RG* 19 22 27.4543322675 +38 50 52.907500781   10.79 9.81     K2 29 0
11 KIC 11913545 RG* 19 25 14.8455997265 +50 12 40.365660125   12.86 11.88 11.62   K3III 14 0
12 KIC 8366239 RG* 19 28 19.0902589679 +44 19 18.594810144   13.35 11.71     G6V 40 0
13 KIC 11353313 RG* 19 33 21.2760079602 +49 08 03.131521913           G5V: 23 0
14 KIC 11968334 RG* 19 37 09.0141193188 +50 21 41.487853205           K1IV 23 0
15 2MASS J19411845+4314072 RG* 19 41 18.4541398561 +43 14 07.191646785   12.55 11.61     K1IIe 21 0
16 KOI-5684 RG* 19 43 29.4966692772 +46 00 52.079213672   12.26 11.34     ~ 29 0
17 2MASS J19493651+4124143 RG* 19 49 36.5255261248 +41 24 14.226498569   12.22 11.22     ~ 26 0
18 2MASS J19543279+4234473 RG* 19 54 32.8049968314 +42 34 47.327084654   13.71 11.68     K1IV 13 0
19 2MASS J20033949+4449045 RG* 20 03 39.4909948478 +44 49 04.483565630   12.11 11.10     ~ 25 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2016A&A...591A..99P and select 'bookmark this link' or equivalent in the popup menu


2021.02.24-22:35:06

© Université de Strasbourg/CNRS

    • Contact