100 citations · 2.6k across the 74 of their papers we have counts for
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Suzaku Observations of the Prototype Wind-Blown Bubble NGC 6888
Svetozar A. Zhekov, Sangwook Park
We present an analysis of the Suzaku observations of the prototype wind-blown bubble NGC 6888 which is based both on use of standard spectral models and on a direct comparison of t…
SNR 0104-72.3: A remnant of Type Ia Supernova in a Star-forming region?
Jae-Joon Lee, Sangwook Park, John Patrick Hughes +2
We report our 110 ks Chandra observations of the supernova remnant (SNR) 0104-72.3 in the Small Magellanic Cloud (SMC). The X-ray morphology shows two prominent lobes along the nor…
Chandra HETG Observations of the Colliding Stellar Wind System WR 147
Svetozar A. Zhekov, Sangwook Park
We present an extended analysis of deep Chandra HETG observations of the WR+OB binary system WR 147 that was resolved into a double X-ray source (Zhekov & Park, 2010, ApJ, 709, L11…
Resolved shock structure of the Balmer-dominated filaments in Tycho's supernova remnant: Cosmic-ray precursor?
Jae-Joon Lee, John C. Raymond, Sangwook Park +4
We report on the results from Hα imaging observations of the eastern limb of Tycho's supernova remnant (SN1572) using the Wide Field Planetary Camera 2 on the Hubble Space Telescop…
Evolution of the Chandra CCD Spectra of SNR 1987A: Probing the Reflected-Shock Picture
Svetozar A. Zhekov, Sangwook Park, Richard McCray +2
We continue to explore the validity of the reflected shock structure (RSS) picture in SNR 1987A that was proposed in our previous analyses of the X-ray emission from this object. W…
Discovery of X-Ray-Emitting O-Ne-Mg-Rich Ejecta in the Galactic Supernova Remnant Puppis A
Satoru Katsuda, Una Hwang, Robert Petre +3
We report on the discovery of X-ray--emitting O-Ne-Mg-rich ejecta in the middle-aged Galactic O-rich supernova remnant Puppis A with Chandra and XMM-Newton. We use line ratios to i…