3 papers
astro-ph.HE2026
The compact neutron star in 4U 1746-37 revisited: Reassessing the mass and radius
Kwang Hyun Sung, Myungkuk Kim, Young-Min Kim +2
A recent analysis of photospheric radius expansion X-ray bursts from the low-mass X-ray binary 4U 1746-37 reported unusually small mass and radius estimates for the neutron star, s…
astro-ph.HE2021
Measuring Masses and Radii of Neutron Stars in Low-Mass X-ray Binaries: Effects of Atmospheric Composition and Touchdown Radius
Myungkuk Kim, Young-Min Kim, Kwang Hyun Sung +2
Methods. We use both a Monte Carlo (MC) sampling and a Bayesian analysis to find the effects of the photospheric composition and the touchdown radius. We apply these two methods to…
astro-ph.GA2019
Estimating the Fuel Supply Rate on the Galactic Disk from High Velocity Clouds (HVCs) Infall
Kwang Hyun Sung, Kyujin Kwak
Previous studies suggest that the estimated maximum accretion rate from approaching high velocity clouds (HVCs) on the Galactic disk can be up to ~ 0.4 solar mass per year. In this…