Rho, J., Reach, W. T., Tappe, A., Hwang, U., Slavin, J. D., Kozasa, T., ...
We present Spitzer Infrared Spectrograph and Infrared Array Camera observations of the young supernova remnant E0102 (SNR 1E0102-7219) in the Small Magellanic Cloud. The infrared spectra show strong...
Dust Formation in the young core-collapse supernova remnant E0102 (2009)
Rho, J., Reach, W. T., Tappe, A., Hwang, U., Slavin, J. D., Kozasa, T., ...
We present Spitzer IRS and IRAC observations of the young supernova remnant E0102 (SNR 1E0102.2-7219) in the Small Magellanic Cloud. The infrared spectra show strong ejecta lines of Ne and O, with...
Doppler-Broadened Iron X-ray Lines from Tycho's Supernova Remnant (2009)
Furuzawa, A., Ueno, D., Hayato, A., Ozawa, M., Tamagawa, T., Bamba, A., ...
We use \suzaku observations to measure the spatial variation of the Fe K$\alpha$ line with radius in the \tycho supernova remnant. The Fe line widths show a significant decrease from a FWHM value of...
Dust Formation Observed in Young Supernova Remnants with Spitzer (2009)
Rho, J., Reach, W. T., Tappe, A., Rudnick, L., Kozasa, T., Hwang, U., ...
We present dust features and masses observed in young supernova remnants (SNRs) with Spitzer IRS mapping and staring observations of four youngest supernova remnants: SNR 1E102.2-7219 (E0102) in the...
Suzaku Observations of Tycho's Supernova Remnant (2008)
Tamagawa, T., Hayato, A., Nakamura, S., Terada, Y., Bamba, A., Hiraga, J. S., ...
Tycho's supernova remnant was observed by the XIS and HXD instruments onboard the Suzaku satellite on 2006 June 26-29 for 92 ks. The spectrum up to 30 keV was well fitted with a two-component model,...
Katsuda, S., Mori, K., Tsunemi, H., Park, S., Hwang, U., Burrows, D. N., ...
We report on the discovery of fast-moving X-ray--emitting ejecta knots in the Galactic Oxygen-rich supernova remnant Puppis A from XMM-Newton observations. We find an X-ray knotty feature...
The radio expansion and brightening of the very young supernova remnant G1.9+0.3 (2008)
Green, D. A., Reynolds, S. P., Borkowski, K. J., Hwang, U., Harrus, I., Petre, R.
Recent radio observations of the small Galactic supernova remnant G1.9+0.3 made at 4.86 GHz with the VLA are presented, and compared with earlier observations at 1.49 GHz which have a comparable...
The Youngest Galactic Supernova Remnant: G1.9+0.3 (2008)
Reynolds, S. P., Borkowski, K. J., Green, D. A., Hwang, U., Harrus, I., Petre, R.
Our 50 ks Chandra observation of the small radio supernova remnant (SNR) G1.9+0.3 shows a complete shell structure with strong bilateral symmetry, about $100''$ in diameter. The radio morphology is...
C. S. Reynolds, T. Di Matteo, A. C. Fabian, U. Hwang, C. R. Canizares
It is believed that most giant elliptical galaxies possess nuclear black holes with masses in excess of 10 8 M fi. Bondi accretion from the interstellar medium might then be expected to produce...
Reynolds, S. P., Borkowski, K. J., Hwang, U., Hughes, J. P., Badenes, C., Laming, J. M., ...
We present initial results of a 750 ks Chandra observation of the remnant of Kepler's supernova of AD 1604. The strength and prominence of iron emission, together with the absence of O-rich ejecta,...
A physical interpretation of the jet-like X-ray emission from supernova remnant W49B (2007)
Miceli, M., Decourchelle, A., Ballet, J., Bocchino, F., Hughes, J. P., Hwang, U., ...
In the framework of the study of supernova remnants and their complex interaction with the interstellar medium and the circumstellar material, we focus on the galactic supernova remnant W49B. Its...
A New Young Galactic Supernova Remnant Containing a Compact Object: G15.9+0.2 (2006)
Reynolds, S. P., Borkowski, K. J., Hwang, U., Harrus, I., Petre, R., Dubner, G.
We identify the radio-emitting shell-type supernova remnant G15.9+0.2 as a relatively young remnant containing an X-ray point source that may be its associated neutron star. The integrated spectrum...
The X-ray emission of the supernova remnant W49B observed with XMM-Newton (2006)
Miceli, M., Decourchelle, A., Ballet, J., Bocchino, F., Hughes, J. P., Hwang, U., ...
In the framework of the study of supernova remnants and their complex interaction with the interstellar medium, we report on an XMM-Newton EPIC observation of the Galactic supernova remnant W49B. We...
XMM-Newton observation of Kepler\'s supernova remnant (2005)
Cassam-Chenai, G., Decourchelle, A., Ballet, J., Hwang, U., Hughes, J. P., Petre, R.
We present the first results coming from the observation of Kepler\'s supernova remnant obtained with the EPIC instruments on board the XMM-Newton satellite. We focus on the images and radial...
Exploring the Physics of Type Ia Supernovae Through the X-ray Spectra of their Remnants (2005)
Badenes, C., Borkowski, K. J., Bravo, E., Hughes, J. P., Hwang, U.
We present the results of an ongoing project to use the X-ray observations of Type Ia Supernova Remnants to constrain the physical processes involved in Type Ia Supernova explosions. We use the Tycho...
XMM-Newton observation of Kepler's supernova remnant (2003)
Cassam-Chenai, G., Decourchelle, A., Ballet, J., Hwang, U., Hughes, J. P., Petre, R.
We present the first results coming from the observation of Kepler's supernova remnant obtained with the EPIC instruments on board the XMM-Newton satellite. We focus on the images and radial profiles...
Chandra Observation of the X-Ray Source Population of NGC 6946 (2003)
Holt, S. S., Schlegel, E. M., Hwang, U., Petre, R.
We present the results of a study of discrete X-ray sources in NGC 6946 using a deep Chandra ACIS observation. Based on the slope of the log N-log S distribution and the general correlation of...
XMM-Newton observation of Kepler\'s supernova remnant (2003)
Cassam-Chenai, G., Decourchelle, A., Ballet, J., Hwang, U., Hughes, J. P., Petre, R.
We present the first results coming from the observation of Kepler\'s supernova remnant obtained with the EPIC instruments on board the XMM-Newton satellite. We focus on the images and radial...
XMM-Newton observation of Kepler\'s supernova remnant (2003)
Cassam-Chenai, G., Decourchelle, A., Ballet, J., Hwang, U., Hughes, J. P., Petre, R.
We present the first results coming from the observation of Kepler\'s supernova remnant obtained with the EPIC instruments on board the XMM-Newton satellite. We focus on the images and radial...
Chandra Detection of the Forward and Reverse Shocks in Cassiopeia-A (2001)
Gotthelf, E. V., Koralesky, B., Rudnick, L., Jones, T. W., Hwang, U., Petre, R.
We report the localization of the forward and reversed shock fronts in the young supernova remnant Cas-A using X-ray data obtained with the Chandra Observatory. High resolution X-ray maps resolve a...
The nature of the radio-quiet compact X-ray source in SNR RCW 103 (1997)
Gotthelf, E. V., Petre, R., Hwang, U.
We consider the nature of the elusive neutron star candidate 1E~161348-5055 using X-ray observations obtained with the ASCA Observatory. The compact X-ray source is centered on the shell-type...
The `quiescent' black hole in M87 (1996)
Reynolds, C. S., Di Matteo, T., Fabian, A. C., Hwang, U., Canizares, C. R.
It is believed that most giant elliptical galaxies possess nuclear black holes with masses in excess of $10^8\Msun$. Bondi accretion from the interstellar medium might then be expected to produce...
One Cheer for Foreign Lobbying
This paper presents an argument in favor of foreign lobbying. We show how foreign lobbying can help internalize cross national externalities and promote social objectives.