Intensity Masking to Get High Resolution Images From Low Quality Apertures (2007)
James Theiler, William C. Priedhorsky
The effort and expense required to build and maintain an optical-quality telescope increases dramatically with the size of the telescope aperture, 1 and this is especially so in space. But scenarios...
X-ray Observations of the Boundary Layer in Dwarf Novae at Low Accretion Rates (2005)
Pandel, Dirk, Cordova, France A., Mason, Keith O., Priedhorsky, William C.
We present a spectral analysis of XMM-Newton data of ten dwarf novae, nine of which were observed during a quiescent state. The X-ray spectra indicate the presence of a hot, optically thin plasma...
On the Correlated X-ray and Optical Evolution of SS Cygni (2003)
McGowan, Katherine E., Priedhorsky, William C., Trudolyubov, Sergey P.
We have analyzed the variability and spectral evolution of the prototype dwarf nova system SS Cygni using RXTE data and AAVSO observations. A series of pointed RXTE/PCA observations allow us to trace...
Fast X-ray Transients and Their Connection to Gamma-Ray Bursts (2003)
Arefiev, Vadim A., Priedhorsky, William C., Borozdin, Konstantin N.
Fast X-ray transients (FXTs) with timescales from seconds to hours have been seen by numerous space instruments. We have assembled archival data from Ariel-5, HEAO-1 (A-1 and A-2), WATCH, ROSAT, and...
Borozdin, Konstantin N., Priedhorsky, William C.
Using ROSAT PSPC data, we have performed several tests aimed at understanding the origin of the soft X-ray spectral component detected from the bulge of M31. We find that a significant soft component...
RXTE observations of 4U 1630-47 during the peak of its 1998 outburst (1999)
Trudolyubov, Sergey P., Borozdin, Konstantin N., Priedhorsky, William C.
We present an analysis of the RXTE observations of 4U 1630-47 during its outburst of 1998. The light curve and the spectral evolution of the outburst were distinctly different from the outbursts of...
RXTE Observations of an Outburst of Recurrent X-ray Nova GS 1354-644 (1999)
Revnivtsev, Mikhail G., Borozdin, Konstantin N., Priedhorsky, William C., Vikhlinin, Alexey
We present the results of Rossi X-ray Timing Explorer observations of GS 1354-644 during a modest outburst in 1997-1998. The source is one of a handful of black hole X-ray transients that are...