X-ray evolution in the ROSAT Brightest Cluster Sample

X-Ray Evolution of Active Galactic Nuclei and Hierarchical Galaxy Formation

X-ray evolution of model elliptical galaxies

X-ray Evolution of Pulsar Wind Nebulae

X-ray Evolution of SN 1987A

X-ray Evolution of SNR 1987A: The Radial Expansion

X-Ray Excitation of Molecular Hydrogen and [Fe II] Emission in NGC 1068

X-ray experiments for Space applications in intermediate energy range

X-ray facility for the ground calibration of the X-ray monitor JEM-X on board INTEGRAL

X-ray FE line studies

X-ray filaments in cluster cooling flows

X-ray flare candidates in short gamma-ray bursts

X-Ray Flare Characteristics in Lambda Eridani

X-ray Flare from a Herbig Be star, MWC297

X-ray flare in XRF 050406: evidence for prolonged engine activity

X-ray flare in XRF 050406: evidence for prolonged engine activity

X-ray flare modeling in the single giant HR 9024

X-Ray Flare Plasma Temperature: a Comment on a Paper by Deshpande and Tandon

X-Ray Flares and Mass Outflows Driven by Magnetic Interaction between a Protostar and its Surrounding Disk

X-Ray Flares and Oscillations from the Black Hole Candidate X-Ray Transient XTE J1650-500 at Low Luminosity