ASCA OBSERVATIONS OF THE SPECTRUMOF THE X-RAY BACKGROUND (2007)
Keith C. Gendreau, Richard Mushotzky, Andrew C. Fabian, Tsuneo Kii, Stephen S. Holt, Peter J. Serlemitsos, ...
We present initial results from ASCA on the spectrum of the Cosmic X-ray Background from 0.4 to 10 keV. About 250 ksec of deep survey data has been collected from the performance verification phase...
Iron and Nickel Line Diagnostics for the Galactic Center Diffuse Emission (2006)
Koyama, Katsuji, Hyodo, Yoshiaki, Inui, Tatsuya, Nakajima, Hiroshi, Matsumoto, Hironori, Tsuru, Takeshi Go, ...
We have observed the diffuse X-ray emission from the Galactic center (GC) using the X-ray Imaging Spectrometer (XIS) on Suzaku. The high-energy resolution and the low-background orbit provide...
Thermal and Nonthermal Emission from the Forward Shock in Tycho's Supernova Remnant (2002)
Hwang, Una, Decourchelle, Anne, Holt, Stephen S., Petre, Robert
We present Chandra X-ray images of Tycho's supernova remnant that delineate its outer shock as a thin, smooth rim along the straight northeastern edge and most of the circular western half. The...
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...
Is the Compact Source at the Center of Cas A Pulsed? (2001)
Murray, Stephen S., Ransom, Scott M., Juda, Michael, Hwang, Una, Holt, Stephen S.
A 50 ksec observation of the Supernova Remnant Cas A was taken using the Chandra X-Ray Observatory High Resolution Camera (HRC) to search for periodic signals from the compact source located near the...
The Thermal X-ray Emitting Shell of LMC Supernova Remnant 0540-693 (2001)
Hwang, Una, Petre, Robert, Holt, Stephen S., Szymkowiak, Andrew E.
We use data from the Advanced CCD Imaging Spectrometer (ACIS) on the Chandra X-ray Observatory to image the shell surrounding the pulsar B0540-69, and to measure its spectral properties. Weak...
The X-ray Remnant of SN1987A (2000)
Burrows, David N., Michael, Eli, Hwang, Una, McCray, Richard, Chevalier, Roger A., Petre, Robert, ...
We present high resolution Chandra observations of the remnant of SN1987A in the Large Magellanic Cloud. The high angular resolution of the Chandra X-ray Observatory (CXO) permits us to resolve the...
Mapping the X-ray Emitting Ejecta in Cassiopeia A with Chandra (2000)
Hwang, Una, Holt, Stephen S., Petre, Robert
We present X-ray emission line equivalent width images of the bright Galactic supernova remnant Cassiopeia A for the elements Si, S, Ar, Ca, and Fe using a 50,000 s observation with the Advanced CCD...
ASCA Observations of the Spectrum of the X-ray Background (1995)
Keith Gendreau, Richard Mushotzky, Andrew C. Fabian, Stephen S. Holt, Peter J. Serlemitsos, Yasushi Fukazawa, ...
We present initial results from ASCA on the spectrum of the Cosmic X-ray Background from 0.4 to 10 keV. About 250 ksec of deep survey data has been collected from the performance verification phase...