X-ray and optical observations of the unique binary system HD49798/RXJ0648.0-4418

X-ray and Optical Study of Low Core Density Globular Clusters NGC6144 and E3

X-ray and optical study of the new SMC X-ray binary pulsar system SXP7.92 and its probable optical counterpart, AzV285

X-ray and Radio Constraints on the Mass of the Black Hole in Swift J164449.3+573451

X-ray and Radio Variability of M31*, The Andromeda Galaxy Nuclear Supermassive Black Hole

X-ray and TeV emissions from High Frequency Peaked BL Lacs

X-ray and UV emission from the recurrent nova RS Ophiuchi in quiescence: Signatures of accretion and shocked gas

X-ray and UV observations of nova V598 Puppis between 147 and 255 days after outburst

X-ray bursting neutron star atmosphere models: spectra and color corrections

X-ray bursts and burst oscillations from the slowly spinning X-ray pulsar IGR J17480-2446 (Terzan 5)

X-ray bursts and superbursts - recent developments

X-ray bursts from the Terzan 5 transient IGR J17480-2446: nuclear rather than gravitational

X-ray Characteristics of NGC 3516: A View through the Complex Absorber

X-ray colour-colour selection for heavily absorbed AGN

X-ray Counterparts of Millisecond Pulsars in Globular Clusters

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

X-ray emission from black-hole binaries

X-ray emission from early-type galaxies

X-ray emission from GPS and CSS sources

X-ray emission from HESS J1731-347/SNR G353.6-0.7 and Central Compact Source XMMS J173203-344518