Yaqian Wu

ASTEROSEISMIC ANALYSIS OF THE CoRoT TARGET HD 49933

The satellite CoRoT (Convection, Rotation, and planetary Transits) has provided high-quality data for almost six years. We show here the asteroseismic analysis and modeling of HD169392A, which belongs to a binary system weakly gravitationally bound as the distance between the two components is of 4250 AU. The main component, HD169392A, is a G0IV star with a magnitude of 7.50 while the second component is a G0V-G2IV star with a magnitude of 8.98. This analysis focuses on the main component, as the secondary one is too faint to measure any seismic parameters. A complete modeling has been possible thanks to the complementary spectroscopic observations from HARPS, providing Teff=5985+/-60K, log g=3.96+/-0.07, and [Fe/H]=- 0.04+/-0.10.

Asteroseismic analysis of Kepler target KIC 2837475

The ratios

Mass and age of red giant branch stars observed with LAMOST and Kepler

r_{01}

Stellar parameters of main sequence turn-off star candidates observed with LAMOST and Kepler

and

Stellar Mass Distribution and Star Formation History of the Galactic Disk Revealed by Mono-age Stellar Populations from LAMOST

r_{10}

The Ages and Masses of a Million Galactic-disk Main-sequence Turnoff and Subgiant Stars from the LAMOST Galactic Spectroscopic Surveys

of small to large separations of KIC 2837475 primarily exhibit an increase behavior in the observed frequency range. The calculations indicate that only the models with overshooting parameter

Ages of 70 dwarfs of three populations in the solar neighborhood: considering O and C abundances in stellar models

\delta_{\rm ov}

Binary Star Fractions from the LAMOST DR4

between approximately 1.2 and 1.6 can reproduce the observed ratios

Seismic diagnostics of solar-like oscillating stars

r_{01}

Asteroseismic analysis of Kepler targets KIC 11081729

and