X-Ray Constraints on the Shape of the Dark Matter in Five Abell Clusters

X-ray continuum and evidence for an iron emission line from the quasar E1821 + 643

X-ray continuum and iron K emission line from the radio galaxy 3C 390.3

X-ray continuum with an iron emission line from the radio-quiet quasar PHL 909

X-ray coronae and stellar magnetospheres

X-Ray Coronae Around Galaxies

X-ray coronae from dynamos in young Ae/Be stars

X-ray coronal activity of M dwarfs

X-Ray Counterparts of Runaway Stars

X-ray counts of Active Galactic Nuclei in Einstein extended medium sensitivity survey

X-Ray Data Archive on Compact Discs

X-ray Detected AGN on the Color-Magnitude Diagram

X-ray Detection and Starspot Model for AG Draconis

X-Ray Detection from Bona Fide and Candidate Brown Dwarfs in the ρ Ophiuchi Cloud with Chandra

X-Ray Detection of Brown Dwarfs with Chandra

X-ray detection of Nova V2468 Cygni and multiwavelength monitoring

X-Ray Detection of PSR B1259-63 at Periastron

X-ray Detection of Pulsar PSR B1757-24 and its Nebular Tail

X-Ray Detection of SN 2008bo with Swift XRT

X-ray detection of Supernova 1988Z with the ROSAT High Resolution Imager