activity
20062025
most citedThe BOES spectropolarimeter for Zeeman measurements of stellar magnetic fields

103 citations · 571 across the 36 of their papers we have counts for

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Showing 2011Show all

5 papers · 1 filter

astro-ph.EP2011★ 23 cited

A Planetary Companion to the Intermediate-Mass Giant HD 100655

Masashi Omiya, Inwoo Han, Hideyuki Izumiura +10

A precise radial velocity survey conducted by a Korean-Japanese planet search program revealed a planetary companion around the intermediate-mass clump giant HD 100655. The radial…

astro-ph.SR2011★ 21 cited

Lithium, Sodium, and Potassium Abundances in Sharp-Lined A-Type Stars

Yoichi Takeda, Dong-Il Kang, Inwoo Han +4

The abundances of alkali elements (Li, Na, and K) were determined from the Li I 6708, Na I 5682/5688, and K I 7699 lines by taking into account the non-LTE effect for 24 sharp-line…

astro-ph.EP2011★ 28 cited

A likely exoplanet orbiting the oscillating K-giant α Arietis

B. -C. Lee, D. E. Mkrtichian, I. Han +2

Aims. To search for extrasolar planets around intermediate-mass stars, we are conducting a precise RV survey around K-giants. Methods. We present high-accuracy RV measurements of α…

astro-ph.SR2011

High Resolution Optical Spectra of HBC 722 after Outburst

Jeong-Eun Lee, Wonseok Kang, Sang-Gak Lee +5

We report the results of our high resolution optical spectroscopic monitoring campaign ( = 3800 -- 8800 A, R = 30000 -- 45000) of the new FU Orionis-type object HBC 722. We obse…

astro-ph.EP2011★ 1 cited

Korean-Japanese Planet Search Program: Substellar Companions around Intermediate-Mass Giants

Masashi Omiya, Inwoo Han, Hideyuki Izumiura +10

A Korean-Japanese planet search program has been carried out using the 1.8m telescope at Bohyunsan Optical Astronomy Observatory (BOAO) in Korea, and the 1.88m telescope at Okayama…