10 citations · 29 across the 8 of their papers we have counts for
8 papers
The Double-lined Eclipsing Doradus System AX Draconis in a 0.568-day Orbit
Jae Woo Lee, Min-Ji Jeong, Kyeongsoo Hong +3
For the near-contact binary AX Dra, we present the first time-series spectroscopy collected with the echelle spectrograph BOES. From spectral analysis, we measured the projected ro…
TIC 322208686: An Eclipsing System with Doradus Pulsations and a Third Component on a Wider Orbit
Jae Woo Lee, Kyeongsoo Hong, Min-Ji Jeong +3
TIC 322208686 is known to be a detached binary that exhibits two types of variability: pulsation and eclipse. We present the physical properties of the target star using the short-…
Absolute Properties of the Oscillating Eclipsing Algol XZ Ursae Majoris
Jae Woo Lee, Kyeongsoo Hong, Hye-Young Kim +3
It is known from archival TESS data that the semi-detached Algol system XZ UMa is one of the candidate binary stars exhibiting short-period oscillations. We secured new high-resolu…
Improved period variations of 32 contact binaries with rapidly decreasing periods in the Galactic Bulge
Kyeongsoo Hong, Jae Woo Lee, Dong-Jin Kim +4
We present detailed analyses of updated eclipse timing diagrams for 32 contact binary merger candidates in the Galactic bulge. The photometric data was obtained from 2016 to 2021 u…
A Photometric and Spectroscopic Study of the Short-Period Algol EW Boötis with a Sct Pulsator
Hye-Young Kim, Kyeongsoo Hong, Chun-Hwey Kim +4
In this paper, we present TESS photometry and high-resolution spectra of the short-period Algol EW Boo. We obtained double-lined radial velocities (RVs) from the time-series spectr…
The Pre-He White Dwarfs in Eclipsing Binaries. IV. WASP 1814+48 with Multiperiodic Pulsations
Jae Woo Lee, Kyeongsoo Hong, Hye-Young Kim +1
For the EL CVn candidate 1SWASPJ181417.43+481117.0 (WASP 1814+48), we secured the first spectroscopic observations between 2015 April and 2021 March. Using the echelle spectra, the…
Period Changes of 14,127 Contact Eclipsing Binaries in the Galactic Bulge
Kyeongsoo Hong, Jae Woo Lee, Jang-Ho Park +5
We present the orbital period variations of 14,127 contact eclipsing binaries (CEBs) based on the OGLE-III\&IV observations in the Galactic bulge. New times of minimum lights for t…
Tidally Excited Modes and Scuti Pulsations in the Eclipsing Triple Star IM Persei
Jae Woo Lee, Kyeongsoo Hong, Hye-Young Kim
IM Per is a triple star system whose eclipsing pair masses and radii are accurate to within 1 \%. The TESS light curve of the program target exhibits partial eclipses and multiple…