X-ray Emission from Normal Elliptical Galaxies
X-ray emission from spiral galaxies with normal and low-activity nuclei
X-ray emission from the winds of hot stars
X-ray emission from the winds of hot stars. II
X-ray emission of a representative sample of local Luminous Infrared Galaxies
X-ray emission of a representative sample of local Luminous Infrared Galaxies
X-ray emission of a representative sample of local Luminous Infrared Galaxies
X-ray Emission of SDSS Quasars from ROSAT PSPC Pointed Observations: The Catalog and Initial Analysis
X-ray emitters in the bulge of M31
X-ray evidence of an AGN in M82
X-Ray Fingerprinting Techniques for Recognizing A Hydrological Role in the Formation of Minerals on the Surface of Mars
X-ray flare and short-wave fade duration model. Outage time is directly related to solar peak of X-ray event by use of event rise characteristics
X-ray Flashes from Off-axis Gamma-Ray Bursts
X-ray fluorescence observations of the moon by SMART-1/D-CIXS and the first detection of Ti Kα from the lunar surface
X-ray Fluorescence Spectrometry with the SELENE Orbiter
X-ray Galaxy Clusters & Cosmology
X-ray galaxy clusters in the large-scale structure
X-Ray Heated Disks in Compact Binary Systems
X-Ray Ionization Effects on the Stellar Wind of Cygnus X-1
X-ray light curves of active galactic nuclei are phase incoherent