activity
19992024
most citedDiffuse -ray background and primordial black hole constraints on the spectral index of density fluctuations

50 citations · 153 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.HE2024★ 1 cited

General relativistic self-gravitating equilibrium disks around rotating neutron stars

Yoonsoo Kim, Jinho Kim, Hee Il Kim +1

In modeling a relativistic disk around a compact object, the self-gravity of the disk is often neglected while it needs to be incorporated for more accurate descriptions in several…

astro-ph.HE2023★ 2 cited

Neutron Star Mergers and the Quark Matter Equation of State

Grant J. Mathews, Atul Kedia, Hee Il Kim +1

As neutron stars merge they can approach very high nuclear density. Here, we summarized recent results for the evolution and gravitational wave emission from binary neutron star me…

gr-qc2022★ 31 cited

Binary neutron star mergers as a probe of quark-hadron crossover equations of state

Atul Kedia, Hee Il Kim, In-Saeng Suh +1

It is anticipated that the gravitational radiation detected in future gravitational wave (GW) detectors from binary neutron star (NS) mergers can probe the high-density equation of…

astro-ph.HE2012★ 5 cited

Axially symmetric pseudo-Newtonian hydrodynamics code

Jinho Kim, Hee Il Kim, Matthew William Choptuik +1

We develop a numerical hydrodynamics code using a pseudo-Newtonian formulation that uses the weak field approximation for the geometry, and a generalized source term for the Poisso…

astro-ph.HE2009★ 4 cited

Pseudo-Newtonian Models for the Equilibrium Structures of Rotating Relativistic Stars

Jinho Kim, Hee Il Kim, Hyung Mok Lee

We obtain equilibrium solutions for rotating compact stars including the special relativistic effects. The gravity is assumed to be Newtonian, but we used the active mass density,…

astro-ph2004★ 29 cited

Rayleigh Scattering Cross Section Redward of Ly by Atomic Hydrogen

Hee-Won Lee, Hee Il Kim

We present a low energy expansion of the Kramers-Heisenberg formula for atomic hydrogen in terms of , where and are the angular frequencies corresponding to the…

astro-ph1999★ 20 cited

Primordial black holes under the double inflationary power spectrum

Hee Il Kim

Recently, it has been shown that the primordial black holes (PBHs) produced by near critical collapse in the expanding universe have a scaling mass relation similar to that of blac…

astro-ph1999★ 11 cited

Relics of cosmological quark-hadron phase transition

Hee Il Kim, Bum-Hoon Lee, Chul H. Lee

We propose that the amplified density fluctuations by the vanishing sound velocity effect during the cosmological quark-hadron phase transition lead to quark-gluon plasma lumps dec…

astro-ph1999★ 50 cited

Diffuse -ray background and primordial black hole constraints on the spectral index of density fluctuations

Hee Il Kim, Chul H. Lee, Jane H. MacGibbon

We calculate the flux of -rays emitted from primordial black holes (PBHs) which are formed by a ``blue'' power-law spectrum of density fluctuations in the early universe. Gamma-…