224 citations · 1.4k across the 62 of their papers we have counts for
63 papers
KMTNet View of Blue Large-amplitude Pulsators Toward the Galactic Bulge: I. Discovery of Wide-orbit Companions in OGLE-BLAP-006
Seung-Lee Kim, Chung-Uk Lee, Kyeongsoo Hong +6
Blue large-amplitude pulsators (BLAPs), a recently classified type of variable stars, are evolved objects likely formed through interactions between stars in a binary system. Howev…
Pulsations and Pre-He White Dwarf in the Post-mass Transfer Eclipsing System WASP 1021-28
Jae Woo Lee, Min-Ji Jeong, Kyeongsoo Hong
We present results from VLT/UVES spectra and TESS photometric observations of the pulsating EL CVn binary WASP 1021-28, containing a He-core white dwarf precursor (pre-He WD). Doub…
WASP 0346-21: An EL CVn-Type Eclipsing Binary with Multiperiodic Pulsations in a Triple System
Jae Woo Lee, Kyeongsoo Hong, Min-Ji Jeong +1
VLT/UVES spectroscopic and TESS photometric observations for WASP 0346-21 allow the direct determination of its physical properties, along with the detection of a circumbinary obje…
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…
Photometric and Spectroscopic Properties of the Eclipsing System V864 Monocerotis
Jang-Ho Park, Jae Woo Lee, Kyeongsoo Hong
We present the orbital period variability and evolutionary status of the W UMa-type binary system V864 Mon from accurately measured fundamental parameters. New photometric obs…