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

collaborators

40 papers

astro-ph.EP2025★ 4 cited

An Early Look at the Performance of IGRINS-2 at Gemini-North with Application to the ultrahot Jupiter, WASP-33 b

Yeon-Ho Choi, Ueejeong Jeong, Jae-Joon Lee +56

Ground-based high-resolution spectroscopy enables precise molecular detections and velocity-resolved atmospheric dynamics, offering a distinct advantage over low-resolution methods…

astro-ph.EP2024

SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR)

Yeon-Ho Choi, Myeong-Gu Park, Kang-Min Kim +9

The SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR) is a new low-resolution optical (3800 Å - 6850 Å) spectrophotometer installed at the Bohyunsan Optical As…

astro-ph.EP2023

A Search for exoplanets around northern circumpolar stars VIII. filter out a planet cycle from the multi-period radial velocity variations in M giant HD 3638

Byeong-Cheol Lee, Gwanghui Jeong, Jae-Rim Koo +6

This paper is written as a follow-up observations to reinterpret the radial velocity (RV) of HD 36384, where the existence of planetary systems is known to be ambiguous. In giants,…

astro-ph.SR2023

Long-period radial velocity variations of nine M red giants: The detection of sub-stellar companions around HD 6860 and HD 112300

Byeong-Cheol Lee, Hee-Jin Do, Myeong-Gu Park +7

Context. Certain periodic variations of radial velocities (RV) of wobbling giants originate from exoplanets. Indeed, a number of exoplanets have been discovered around giant stars.…

astro-ph.EP2023

A search for exoplanets around north circumpolar stars. VII. Detection of planetary companion orbiting the largest host star HD 18438

Byeong-Cheol Lee, Jae-Rim Koo, Gwanghui Jeong +3

We have been conducting a exoplanet search survey using Bohyunsan Observatory Echelle Spectrograph (BOES) for the last 18 years. We present the detection of exoplanet candidate in…

astro-ph.SR2020★ 3 cited

Hybrid star HD 81817 accompanied by brown dwarf or substellar companion

Tae-Yang Bang, Byeong-Cheol Lee, V. Perdelwitz +4

HD 81817 is known as a hybrid star. Hybrid stars have both cool stellar wind properties and Ultraviolet (UV) or even X-ray emission features of highly ionized atoms in their spectr…