X-ray Evolution of SNR 1987A: The Radial Expansion (2009)
Racusin, Judith L., Park, Sangwook, Zhekov, Svetozar, Burrows, David N., Garmire, Gordon P., McCray, Richard
We present the evolution of the radial expansion of SNR 1987A as measured using Chandra X-ray observations taken over the last 10 years. To characterize the complex structure of the remnant and...
Ghavamian, Parviz, Raymond, John C., Blair, William P., Long, Knox S., Tappe, Achim, Park, Sangwook, ...
We present mid-infrared (5-40 micron) spectra of shocked ejecta in the Galactic oxygen-rich supernova remnant G292.0+1.8, acquired with the IRS spectrograph on board the Spitzer Space Telescope. The...
High-Resolution X-ray Spectroscopy of SNR 1987A: Chandra LETG and HETG Observations in 2007 (2008)
Zhekov, Svetozar A., McCray, Richard, Dewey, Daniel, Canizares, Claude R., Borkowski, Kazimierz J., Burrows, David N., ...
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 spectra show that the...
Park, Sangwook, Kargaltsev, Oleg, Pavlov, George G., Mori, Koji, Slane, Patrick O., Hughes, John P., ...
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-ray spectrum of...
A Half-Megasecond Chandra Observation of the Oxygen-Rich Supernova Remnant G292.0+1.8 (2007)
Park, Sangwook, Hughes, John P., Slane, Patrick O., Burrows, David N., Gaensler, B. M., Ghavamian, Parviz
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} ACIS-I...
Chandra X-Ray Study of Galactic Supernova Remnant G299.2-2.9 (2007)
Park, Sangwook, Slane, Patrick O., Hughes, John P., Mori, Koji, Burrows, David N., Garmire, Gordon P.
We report on observations of the Galactic supernova remnant (SNR) G299.2$-$2.9 with the {\it Chandra X-Ray Observatory}. The high resolution images with {\it Chandra} resolve the X-ray-bright knots,...
Chandra Observations of Supernova 1987A (2007)
Park, Sangwook, Burrows, David N., Garmire, Gordon P., McCray, Richard, Racusin, Judith L., Zhekov, Svetozar A.
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 preliminary results...
Silicon Quantum Dots in a Dielectric Matrix for All-Silicon Tandem Solar Cells (2007)
Eun-Chel Cho, Martin A. Green, Gavin Conibeer, Dengyuan Song, Young-Hyun Cho, Giuseppe Scardera, ...
We report work progress on the growth of Si quantum dots in different matrices for future photovoltaic applications. The work reported here seeks to engineer a wide-bandgap silicon-based thin-film...
Silicon quantum dots in a dielectric matrix for all-silicon tandem solar cells (2007)
Cho, Euen-Chel, Green, Martin A., Conibeer, Gavin, Song, Dengyuan, Cho, Young-Hyun, Scardera, Giuseppe, ...
We report work progress on the growth of Si quantum dots in different matrices for future photovoltaic applications. The work reported here seeks to engineer a wide-bandgap silicon-based thin-film...
Silicon quantum dots in a dielectric matrix for all-silicon tandem solar cells (2007)
Cho, Euen-Chel, Green, Martin A., Conibeer, Gavin, Song, Dengyuan, Cho, Young-Hyun, Scardera, Giuseppe, ...
We report work progress on the growth of Si quantum dots in different matrices for future photovoltaic applications. The work reported here seeks to engineer a wide-bandgap silicon-based thin-film...
Silicon quantum dots in a dielectric matrix for all-silicon tandem solar cells (2007)
Cho, Euen-Chel, Green, Martin A., Conibeer, Gavin, Song, Dengyuan, Cho, Young-Hyun, Scardera, Giuseppe, ...
We report work progress on the growth of Si quantum dots in different matrices for future photovoltaic applications. The work reported here seeks to engineer a wide-bandgap silicon-based thin-film...
Silicon quantum dots in a dielectric matrix for all-silicon tandem solar cells (2007)
Cho, Euen-Chel, Green, Martin A., Conibeer, Gavin, Song, Dengyuan, Cho, Young-Hyun, Scardera, Giuseppe, ...
We report work progress on the growth of Si quantum dots in different matrices for future photovoltaic applications. The work reported here seeks to engineer a wide-bandgap silicon-based thin-film...
Silicon quantum dots in a dielectric matrix for all-silicon tandem solar cells (2007)
Cho, Eun-Chel, Green, Martin A., Conibeer, Gavin, Song, Dengyuan, Cho, Young-Hyun, Scardera, Giuseppe, ...
We report work progress on the growth of Si quantum dots in different matrices for future photovoltaic applications. The work reported here seeks to engineer a wide-bandgap silicon-based thin-film...
Silicon Quantum Dots in a Dielectric Matrix for All-Silicon Tandem Solar Cells (2007)
Eun-Chel Cho, Martin A. Green, Gavin Conibeer, Dengyuan Song, Young-Hyun Cho, Giuseppe Scardera, ...
We report work progress on the growth of Si quantum dots in different matrices for future photovoltaic applications. The work reported here seeks to engineer a wide-bandgap silicon-based thin-film...
Discovery of a Candidate Central Compact Object in the Galactic Nonthermal SNR G330.2+1.0 (2006)
Park, Sangwook, Mori, Koji, Kargaltsev, Oleg, Slane, Patrick O., Hughes, John P., Burrows, David N., ...
We report on the discovery of a pointlike source (CXOU J160103.1$-$513353) at the center of a Galactic supernova remnant (SNR) G330.2+1.0 with {\it Chandra X-Ray Observatory}. The X-ray spectrum fits...
Evolutionary Status of SNR 1987A at the Age of Eighteen (2006)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., Garmire, Gordon P., Racusin, Judith L., McCray, Richard
$\sim$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 of the remnant. We...
Chandra LETG Observations of Supernova Remnant 1987A (2006)
Zhekov, Svetozar A., McCray, Richard, Borkowski, Kazimierz J., Burrows, David N., Park, Sangwook
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 (from 300 to 1700...
SN 1987A After 18 Years: Mid-Infrared GEMINI and SPITZER Observations of the Remnant (2006)
Bouchet, Patrice, Dwek, Eli, Danziger, I. John, Arendt, Richard G., Park, Sangwook, ...
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 since our last...
Supernova Remnant 1987A: High Resolution Images and Spectrum from Chandra Observations (2005)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., Racusin, Judith L., McCray, Richard, Borkowski, Kazimierz J.
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 brightening and...
Supernova Remnant 1987A: Opening the Future by Reaching the Past (2005)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., McCray, Richard
We report an up-turn in the soft X-ray light curve of supernova remnant (SNR) 1987A in late 2003 (~6200 days after the explosion), as observed with the Chandra X-ray Observatory. Since early 2004,...
A Candidate Neutron Star Associated with Galactic Center Supernova Remnant Sagittarius A East (2005)
Park, Sangwook, Muno, Michael P., Baganoff, Frederick K., Maeda, Yoshitomo, Morris, Mark, Chartas, George, ...
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-resolved spectral...
Supernova Remnant 1987A: The Latest Report from the Chandra X-Ray Observatory (2005)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., Garmire, Gordon P., McCray, Dick
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 evident in addition to...
A Chandra View of The Morphological And Spectral Evolution of Supernova Remnant 1987A (2004)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., Garmire, Gordon P., McCray, Richard
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 have performed a...
Hughes, John P., Friedman, Robert B., Slane, Patrick, Park, Sangwook
We report the discovery of pulsed X-ray emission from the compact object CXOU J112439.1-591620 within the Galactic supernova remnant G292.0+1.8 using the High Resolution Camera on the Chandra X-Ray...
Park, Sangwook, Hughes, John P., Slane, Patrick O., Burrows, David N., Roming, Peter W. A., Nousek, John A., ...
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 {\it Chandra} data...
Characteristics of Diffuse X-Ray Line Emission within 20 pc of the Galactic Center (2003)
Park, Sangwook, Muno, Michael P., Baganoff, Frederick K., Maeda, Yoshitomo, Morris, Mark, Howard, Christian, ...
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 exposure reaches ~590...
Monitoring The Evolution of SNR 1987A with Chandra (2003)
Park, Sangwook, Burrows, David N., Garmire, Gordon P., Zhekov, Svetozar A., McCray, Dick
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 that the blast wave...
0103-72.6: A New Oxygen-Rich Supernova Remnant in the Small Magellanic Cloud (2003)
Park, Sangwook, Hughes, John P., Burrows, David N., Slane, Patrick O., Nousek, John A., Garmire, Gordon P.
0103$-$72.6, the second brightest X-ray supernova remnant (SNR) in the Small Magellanic Cloud (SMC), has been observed with the {\it Chandra X-Ray Observatory}. Our {\it Chandra} observation...
Detection of Magnesium-Rich Ejecta in the Middle-Aged Supernova Remnant N49B (2003)
Park, Sangwook, Hughes, John P., Slane, Patrick O., Burrows, David N., Warren, Jess Ica S., Garmire, Gordon P., ...
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} resolves the...
An X-Ray Pulsar in the Oxygen-Rich Supernova Remnant G292.0+1.8 (2003)
Hughes, John P., Slane, Patrick O., Park, Sangwook, Roming, Peter W. A., Burrows, David N.
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 Chandra X-ray...
X-Ray Emission from Multi-Phase Shock in the Large Magellanic Cloud Supernova Remnant N49 (2002)
Park, Sangwook, Burrows, David N., Garmire, Gordon P., Nousek, John A., Hughes, John P., Williams, Rosa Murphy
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 superb angular...
X-ray spectrum of supernova remnant 1987A (2002)
Michael, Eli, Zhekov, Svetozar, McCray, Richard, Hwang, Una, Burrows, David N., Park, Sangwook, ...
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- energy...
The X-ray Spectrum of Supernova Remnant 1987A (2001)
Michael, Eli, Zhekov, Svetozar, McCray, Richard, Hwang, Una, Burrows, David N., Park, Sangwook, ...
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 energy...
Park, Sangwook, Roming, Peter W. A., Hughes, John P., Slane, Patrick O., Burrows, David N., Garmire, Gordon P., ...
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 Observatory}. In the...
Monitoring the Evolution of the X-ray Remnant of SN 1987A (2001)
Park, Sangwook, Burrows, David N., Garmire, Gordon P., Nousek, John A., McCray, Richard, Michael, Eli, ...
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 new observations have...
Network orchestra :--musical concert hall in cyberspace /--Sangwook Park. (2001)
Thesis (M.S.)--Indiana University, 2001.
ASCA Observation of an "X-ray Shadow" in the Galactic Plane (2000)
The diffuse X-ray background (DXB) emission near the Galactic plane ($l,b \sim 25.6^{\circ},0.78^{\circ}$) has been observed with $ASCA$. The observed region is toward a Galactic molecular cloud...
Interfacial properties of polyester at the oil/water and air/water interfaces / (1999)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1999.
Interfacial properties of polyester at the oil/water and air/water interfaces / (1999)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1999.
The structure of the soft x-ray background in the galactic plane (1998)
With mosaics of the ROSAT PSPC pointed observations, the structure of the 0.1-2.0 keV soft X-ray background in the Galactic plane (0ð < l < 26ð) is studied. In the [Special characters...
Dynamic routing and inventory allocation in a one-warehouse N-retailer distribution system (1997)
In this thesis, we model a dynamic delivery-routing and allocation problem in a one-warehouse N-retailer distribution system operating in a periodic-review mode to study the cost-reduction effect of...
Evidence for an X-ray Emitting Galactic Bulge: Shadows Cast by Distant Molecular Gas (1996)
Park, Sangwook, Finley, John P., Snowden, Steven L., Dame, Thomas M.
A mosaic of 7 ROSAT PSPC pointed observations in the direction of (l,b ~ 10,0 deg) reveals deep X-ray shadows in the 0.5-2.0 keV band cast by dense molecular gas. The comparison between the observed...
Eigenstructure Assignment Technique for manipulator control / (1988)
Thesis (M.S.E.E.)--University of Washington, 1988.