3 papers
astro-ph2003
HI Study of Southern Galactic Supernova Remnants
Bon-Chul Koo, Ji-hyun Kang, Naomi McClure-Griffiths
We briefly summarize the survey of HI 21 cm emission lines to search for shocked atomic gas associated with Galactic supernova remnants (SNRs) in the southern sky. For G347.3-0.5,…
astro-ph2002
Hierarchical Structure of HII Regions - Ultracompact, Compact, and Extended Components
Kee-Tae Kim, Bon-Chul Koo
We have observed extended emission physically associated with 15 out of 16 UC HII regions with large ratios of single-dish to VLA fluxes. We discuss their implications for the age…
astro-ph1999
Infrared Excess and Molecular Gas in Galactic Supershells
Jeong-Eun Lee, Kee-Tae Kim, Bon-Chul Koo
We have carried out high-resolution observations along one-dimensional cuts through the three Galactic supershells GS 064-01-97, GS 090-28-17, and GS 174+02-64 in the HI 21 cm and…