2010ApJ...725.2176Q


Query : 2010ApJ...725.2176Q

2010ApJ...725.2176Q - Astrophys. J., 725, 2176-2189 (2010/December-3)

Automatic determination of stellar parameters via asteroseismology of stochastically oscillating stars: comparison with direct measurements.

QUIRION P.-O., CHRISTENSEN-DALSGAARD J. and ARENTOFT T.

Abstract (from CDS):

Space-based projects are providing a wealth of high-quality asteroseismic data, including frequencies for a large number of stars showing solar-like oscillations. These data open the prospect for precise determinations of key stellar parameters, of particular value to the study of extra-solar planetary systems. Given the quantity of the available and expected data, it is important to develop efficient and reliable techniques for analyzing them, including the determination of stellar parameters from the observed frequencies. Here we present the SEEK package developed for the analysis of asteroseismic data from the Kepler mission. A central goal of the package is to obtain a fast and automatic determination of the stellar radius and other parameters in a form that is statistically well defined. The algorithms are tested by comparing the results of the analysis with independent measurements of stellar radius and mass for a sample of well-observed stars. We conclude that the SEEK package fixes stellar parameters with accuracy and precision.

Abstract Copyright:

Journal keyword(s): methods: statistical - stars: fundamental parameters - stars: oscillations - stars: solar-type

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 * bet Hyi PM* 00 25 45.07036 -77 15 15.2860 3.52 3.41 2.79 2.28 1.94 G0V 592 0
2 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1255 1
3 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1864 0
4 * eta Boo SB* 13 54 41.07892 +18 23 51.7946 3.440 3.250 2.680 2.24 1.95 G0IV 704 0
5 * alf Cen B PM* 14 39 35.06311 -60 50 15.0992 2.89 2.21 1.33     K1V 1024 2
6 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1280 1
7 * 70 Oph A SB* 18 05 27.2484131991 +02 30 00.526614953       3.6   K0V 227 0
8 * 70 Oph ** 18 05 27.28518 +02 30 00.3558 5.40 4.89 4.03 3.38 2.92 K0-V 649 0
9 BD+47 2846 Er* 19 28 59.3538826128 +47 58 10.217007804   10.97 10.48     F6V 306 2
10 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 895 1

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