X-ray source counts at high galactic latitude from measurements of fluctuations in the X-ray background
X-ray Source Populations in M31
X-ray sources and planetary nebulae
X-ray Spectral Analysis of Dim Type Ia Supernova Remnant Candidates in the Small Magellanic Cloud
X-ray spectroscopic instrumentation for the 21st century
X-ray Stacking for the Analysis of Faint Sources: A Bayesian Alternative
X-Ray Structure of Lensing Clusters
X-Ray Structure of Lensing Clusters
X-Ray Structure of Lensing Clusters
X-Ray Structures in and around Powerful Radio Sources
X-ray studies of quasars with the Einstein Observatory. III The 3CR sample
X-ray study of the likely PWN associated with a new VHE gamma-ray source
X-ray Study of the Massive Cluster SpARCS J0035-4312 at z=1.335
X-ray Survey of Centaurus A
X-ray three-dimensional survey in the NDWFS Bootes field: large area chandra shallow x-ray survey-I
X-ray timing of Active Galaxies
X-Ray Variability in the Jet and Core of M87
X-Ray Variability in the Jet and Core of M87
X-ray, UV, Optical and NIR Observations of Aql X-1
X-ray-Emitting Hypernova Remnants in M101: Relics of Gamma-Ray Bursts?