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High-Resolution X-ray Spectroscopy of SNR 1987A: Chandra LETG and HETG Observations in 2007
Svetozar A. Zhekov, Richard McCray, Daniel Dewey +4
We present an extended analysis of the deep Chandra LETG and HETG observations of the supernova remnant 1987A (SNR 1987A) carried out in 2007. The global fits to the grating spectr…
Nonthermal X-Rays from Supernova Remnant G330.2+1.0 and the Characteristics of its Central Compact Object
Sangwook Park, Oleg Kargaltsev, George G. Pavlov +5
We present results from our X-ray data analysis of the SNR G330.2+1.0 and its CCO, CXOU J160103.1--513353 (J1601). Using our XMM-Newton and Chandra observations, we find that the X…
Infrared and X-Ray Evidence for Circumstellar Grain Destruction by the Blast Wave of Supernova 1987A
E. Dwek, R. G. Arendt, P. Bouchet +10
Multiwavelength observations of supernova remnant (SNR) 1987A show that its morphology and luminosity are rapidly changing at X-ray, optical, infrared, and radio wavelengths as the…
A Half-Megasecond Chandra Observation of the Oxygen-Rich Supernova Remnant G292.0+1.8
Sangwook Park, John P. Hughes, Patrick O. Slane +3
We report on our initial analysis of a deep 510 ks observation of the Galactic oxygen-rich supernova remnant (SNR) G292.0+1.8 with the {\it Chandra X-ray Observatory}. Our new {\it…
Chandra X-Ray Study of Galactic Supernova Remnant G299.2-2.9
Sangwook Park, Patrick O. Slane, John P. Hughes +3
We report on observations of the Galactic supernova remnant (SNR) G299.22.9 with the {\it Chandra X-Ray Observatory}. The high resolution images with {\it Chandra} resolve the X…
Chandra Observations of Supernova 1987A
Sangwook Park, David N. Burrows, Gordon P. Garmire +3
We have been monitoring Supernova (SN) 1987A with {\it Chandra X-Ray Observatory} since 1999. We present a review of previous results from our {\it Chandra} observations, and some…
Evolutionary Status of SNR 1987A at the Age of Eighteen
Sangwook Park, Svetozar A. Zhekov, David N. Burrows +3
18 yr after the supernova explosion, the blast wave of SNR 1987A is entering the main body of the equatorial circumstellar material, which is causing a dramatic brightening o…
Chandra LETG Observations of Supernova Remnant 1987A
Svetozar A. Zhekov, Richard McCray, Kazimierz J. Borkowski +2
We discuss the results from deep Chandra LETG observations of the supernova remnant 1987A (SNR 1987A). We find that a distribution of shocks, spanning the same range of velocities…
SN 1987A After 18 Years: Mid-Infrared GEMINI and SPITZER Observations of the Remnant
Patrice Bouchet, Eli Dwek, I. John Danziger +6
We present high resolution 11.7 and 18.3um mid-IR images of SN 1987A obtained on day 6526 with T-ReCS attached to the Gemini telescope. The 11.7um flux has increased significantly…
Supernova Remnant 1987A: High Resolution Images and Spectrum from Chandra Observations
Sangwook Park, Svetozar A. Zhekov, David N. Burrows +3
We report on the morphological and spectral evolution of SNR 1987A from the monitoring observations with the Chandra/ACIS. As of 2005, the X-ray-bright lobes are continuously brigh…
A Candidate Neutron Star Associated with Galactic Center Supernova Remnant Sagittarius A East
Sangwook Park, Michael P. Muno, Frederick K. Baganoff +6
We present imaging and spectral studies of the supernova remnant (SNR) Sagittarius (Sgr) A East from deep observations with the {\it Chandra X-Ray Observatory}. The spatially-resol…
Supernova Remnant 1987A: The Latest Report from the Chandra X-Ray Observatory
Sangwook Park, Svetozar A. Zhekov, David N. Burrows +2
We continue monitoring supernova remnant (SNR) 1987A with the {\it Chandra X-ray Observatory}. As of 2004 January, bright X-ray spots in the northwest and the southwest are now evi…
A Chandra View of The Morphological And Spectral Evolution of Supernova Remnant 1987A
Sangwook Park, Svetozar A. Zhekov, David N. Burrows +2
We present an update on the results of our monitoring observations of the X-ray remnant of supernova (SN) 1987A with the {\it Chandra X-Ray Observatory}. As of 2002 December, we ha…
Nucleosynthesis in The Oxygen-Rich Supernova Remnant G292.0+1.8 from Chandra X-Ray Spectroscopy
Sangwook Park, John P. Hughes, Patrick O. Slane +4
We continue our analysis of the Galactic oxygen-rich supernova remnant (SNR) G292.0+1.8, which was observed with the {\it Chandra X-ray Observatory}. The high angular resolution {\…
Characteristics of Diffuse X-Ray Line Emission within 20 pc of the Galactic Center
Sangwook Park, Michael P. Muno, Frederick K. Baganoff +5
Over the last 3 yrs, the Galactic center (GC) region has been monitored with the Chandra X-Ray Observatory. With 11 Chandra observations through 2002 June, the total effective expo…
Monitoring The Evolution of SNR 1987A with Chandra
Sangwook Park, David N. Burrows, Gordon P. Garmire +2
We report on the results of our monitoring program of SNR 1987A with the Chandra X-Ray Observatory. The high resolution images and the spectra from the latest Chandra data suggest…
Detection of Magnesium-Rich Ejecta in the Middle-Aged Supernova Remnant N49B
Sangwook Park, John P. Hughes, Patrick O. Slane +4
The middle-aged supernova remnant (SNR) N49B in the Large Magellanic Cloud has been observed with the {\it Chandra X-Ray Observatory}. The superb angular resolution of {\it Chandra…
An X-Ray Pulsar in the Oxygen-Rich Supernova Remnant G292.0+1.8
John P. Hughes, Patrick O. Slane, Sangwook Park +2
We report the discovery of pulsed X-ray emission from the compact object CXOU J112439.1-591620 within the supernova remnant (SNR) G292.0+1.8 using the High Resolution Camera on the…
X-Ray Emission from Multi-Phase Shock in the Large Magellanic Cloud Supernova Remnant N49
Sangwook Park, David N. Burrows, Gordon P. Garmire +3
The supernova remnant (SNR) N49 in the Large Magellanic Cloud has been observed with the Advanced CCD Imaging Spectrometer (ACIS) on board the {\it Chandra X-Ray Observatory}. The…
The Structure of the Oxygen-rich Supernova Remnant G292.0+1.8 from Chandra X-ray Images: Shocked Ejecta and Circumstellar Medium
Sangwook Park, Peter W. A. Roming, John P. Hughes +4
We present results from the observation of the young Galactic supernova remnant (SNR) G292.0+1.8 with the Advanced CCD Imaging Spectrometer (ACIS) on board the {\it Chandra X-ray O…
The X-ray Spectrum of Supernova Remnant 1987A
Eli Michael, Svetozar Zhekov, Richard McCray +6
We discuss the X-ray emission observed from Supernova Remnant 1987A with the Chandra X-ray Observatory. We analyze a high resolution spectrum obtained in 1999 October with the high…
Monitoring the Evolution of the X-ray Remnant of SN 1987A
Sangwook Park, David N. Burrows, Gordon P. Garmire +4
We report on the results of our monitoring program of the remnant of SN 1987A with the Advanced CCD Imaging Spectrometer (ACIS) on board the {\it Chandra X-ray Observatory}. Two ne…
ASCA Observation of an "X-ray Shadow" in the Galactic Plane
Sangwook Park, Ken Ebisawa
The diffuse X-ray background (DXB) emission near the Galactic plane () has been observed with . The observed region is toward a Galactic m…
Evidence for the Galactic X-ray Bulge II
S. Park, J. P. Finley, T. M. Dame
A mosaic of 5 \ros~PSPC pointed observations in the Galactic plane () reveals X-ray shadows in the keV band cast by distant molecular clouds. The observe…