X-ray detection of the substellar twin 2MASS J11011926-7732383 AB

X-ray detection of the symbiotic star AG Draconis

X-ray Detections of Two Young Bona-Fide Brown Dwarfs

X-ray detections of weak Seyfert2's with BeppoSAX

X-ray detectors for astrophysics

X-ray diagnostic of the heliospheric plasma and interstellar gas

X-ray Diagnostics of Broad Absorption Line Quasar Geometry

X-ray Diagnostics of Giant Molecular Clouds in the Galactic Center Region and Past Activity of Sgr A*

X-ray Diagnostics of Grain Depletion in Matter Accreting onto T Tauri Stars

X-ray Diagnostics of Merging and Isolated Galaxies

X-ray Diagnostics of Thermal Conditions of the Hot Plasmas in the Centaurus Cluster

X-ray Diffraction Gratings for Astrophysics

X-ray Dip Monitoring of XB 1916-053

X-ray dips and orbital modulation in Cyg X-1

X-ray dips in the Seyfert Galaxy Fairall 9: Compton-thick "comets" or a failed radio galaxy?

X-ray Distant Clusters

X-ray Doppler Imaging of 44i Boo with Chandra

X-ray Doppler Imaging of Rapidly Rotating Stellar Coronae

X-Ray Doppler Imaging of Stellar Coronae

X-ray Dust Scattering at Small Angles: The Complete Halo around GX13+1