842 citations · 3.1k across the 89 of their papers we have counts for
4 papers · 2 filters
The Korean 1592--1593 Record of a Guest Star: An `impostor' of the Cassiopeia A Supernova?
Changbom Park, Sung-Chul Yoon, Bon-Chul Koo
The missing historical record of the Cassiopeia A (Cas A) supernova (SN) event implies a large extinction to the SN, possibly greater than the interstellar extinction to the curren…
A High-Velocity Cloud Impact Forming a Supershell in the Milky Way
Geumsook Park, Bon-Chul Koo, Ji-hyun Kang +5
Neutral atomic hydrogen (HI) gas in interstellar space is largely organized into filaments, loops, and shells, the most prominent of which are "supershells". These gigantic structu…
Infrared [Fe II] Emission Lines from Radiative Atomic Shocks
Bon-Chul Koo, John C. Raymond, Hyun-Jeong Kim
[Fe II] emission lines are prominent in the infrared (IR), and they are important diagnostic tools for radiative atomic shocks. We investigate the emission characteristics of [Fe I…
Infrared Supernova Remnants and their Infrared to X-ray Flux Ratios
Bon-Chul Koo, Jae-Joon Lee, Il-Gyo Jeong +2
Recent high-resolution infrared space missions have revealed supernova remnants (SNRs) of diverse morphology in infrared (IR) dust emission that is often very different from their…