103 citations · 176 across the 5 of their papers we have counts for
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Chemical Abundances in 35 Metal-Poor Stars. I. Basic Data
Jeong-Deok Lee, Sang-Gak Lee, Kang-Min Kim
We carried out a homogeneous abundance study for various elements, including -elements, iron peak elements and -capture elements for 35 metal-poor stars with a wide metallici…
Precise Radial Velocities of Polaris: Detection of Amplitude Growth
Byeong-Cheol Lee, David. E. Mkrtichian, Inwoo Han +2
We present a first results from a long-term program of a radial velocity study of Cepheid Polaris (F7 Ib) aimed to find amplitude and period of pulsations and nature of secondary p…
The BOES spectropolarimeter for Zeeman measurements of stellar magnetic fields
Kang-Min Kim, Inwoo Han, Gennady G. Valyavin +9
We introduce a new polarimeter installed on the high-resolution fiber-fed echelle spectrograph (called BOES) of the 1.8-m telescope at the Bohyunsan Optical Astronomy Observatory,…
The Lorentz force in atmospheres of CP stars: Aurigae
D. Shulyak, G. Valyavin, O. Kochukhov +7
Several dynamical processes may induce considerable electric currents in the atmospheres of magnetic chemically peculiar (CP) stars. The Lorentz force, which results from the inter…
Properties of Central Caustics in Planetary Microlensing
Sun-Ju Chung, Cheongho Han, Byeong-Gon Park +9
To maximize the number of planet detections, current microlensing follow-up observations are focusing on high-magnification events which have a higher chance of being perturbed by…