64 citations · 64 across the 6 of their papers we have counts for
6 papers
Barium abundances of A--F--G type stars in the Hyades cluster
Yoichi Takeda
With an aim of clarifying the extent and parameter-dependence of compositional anomaly of barium in A-type stars, Ba abundances were spectroscopically determined based on BaII 6141…
Atmospheric parameters and chemical abundances of the A-type eclipsing binary system RR Lyncis A and B
Yoichi Takeda
A spectroscopic study was carried out for the double-line A-type eclipsing binary system RR Lyn A+B based on the disentangled spectra, with an aim of clarifying the differences in…
Formation of Al II lines and photospheric aluminium abundances in B-type stars
Yoichi Takeda
Aluminium abundances of B-type stars were spectroscopically determined in order to get information about the galactic gas composition at the time of their formation. For this purpo…
Phosphorus Abundances of B-Type Stars in the Solar Neighborhood
Yoichi Takeda
Phosphorus abundances of ~80 apparently bright sharp-lined early-to-late B-type stars on the upper main sequence are determined by applying the non-LTE analysis to the P II line at…
Photospheric aluminium abundances of A-type main-sequence stars
Yoichi Takeda
Although anomalous surface abundances are often observed in A-type main-sequence stars (known as chemically peculiar stars; e.g., metallic line stars or Am stars), our understandin…
Behavior of Li abundances in solar-analog stars II. Evidence of the connection with rotation and stellar activity
Y. Takeda, S. Honda, S. Kawanomoto +2
We previously attempted to ascertain why the Li I 6708 line-strengths of Sun-like stars differ so significantly despite the superficial similarities of stellar parameters. We carri…