Results 1 to 10 of about 2,160,636 (169)
On the universal X-ray luminosity function of binary X-ray sources in galaxies [PDF]
Astron.Lett. 29 (2003) 372-373, 2002 The empirically determined universal power-law shape of X-ray luminosity function of high mass X-ray binaries in galaxies is explained by fundamental mass-luminosity and mass-radius relations for massive stars.
A. G. Masevich +5 more
arxiv +5 more sources
X-ray astronomy of stellar coronae (Review) [PDF]
, 2004 X-ray emission from stars in the cool half of the Hertzsprung-Russell diagram is generally attributed to the presence of a magnetic corona that contains plasma at temperatures exceeding 1 million K. Coronae are ubiquitous among these stars, yet many fundamental mechanisms operating in their magnetic fields still elude an interpretation through a ...
M. Güdel
arxiv +3 more sources
X-ray sources as tracers of the large-scale structure in the Universe [PDF]
, 2000 We review the current status of studies of large-scale structure in the X-ray Universe. After motivating the use X-rays for cosmological purposes, we discuss the various approaches used on different angular scales including X-ray background multipoles, cross-correlations of the X-ray background with galaxy catalogues, clustering of X-ray selected ...
Barcons, X. +3 more
arxiv +4 more sources
The Challenge to Large Optical Telescopes from X-ray Astronomy [PDF]
, 2002 In the ROSAT era of the mid-1990's, the problems facing deep X-ray surveys could be largely solved with 10 m class telescopes. In the first decade of this new millennium, with X-ray telescopes such as the Chandra X-ray Observatory and XMM-Newton in operation, deep X-ray surveys are challenging 10 m telescopes.
A. E. Hornschemeier
arxiv +3 more sources
Fourier Transform Photography: A New Method for X-Ray Astronomy [PDF]
Publications Astronomical Society of Australia, 1968 In comparison with all other branches of astronomy, X-ray astronomy suffers from a relative dearth of image forming devices. No X-ray lens is known and image formation by reflection requires glancing incidence optics which have small fields of view and ...
J. G. Ables
openalex +2 more sources
A CMOS image sensor for soft x-ray astronomy
Astronomical Telescopes + Instrumentation, 2022 A monolithic CMOS image sensor based on the pinned photodiode (PPD) and optimized for X-ray imaging in the 300 eV to 5 keV energy range is described. Featuring 40 μm square pixels and 40 μm thick, high resistivity epitaxial silicon, the sensor is fully ...
K. Stefanov +12 more
semanticscholar +1 more source
Kyoto's event-driven x-ray astronomy SOI pixel sensor for the FORCE mission [PDF]
Astronomical Telescopes + Instrumentation, 2018 We have been developing monolithic active pixel sensors, X-ray Astronomy SOI pixel sensors, XRPIXs, based on a Silicon-On-Insulator (SOI) CMOS technology as soft X-ray sensors for a future Japanese mission, FORCE (Focusing On Relativistic universe and ...
T. Tsuru +25 more
semanticscholar +1 more source
Novel method for component separation of extended sources in X-ray astronomy [PDF]
Astronomy & Astrophysics, 2019 In high-energy astronomy, spectro-imaging instruments such as X-ray detectors allow investigation of the spatial and spectral properties of extended sources including galaxy clusters, galaxies, diffuse interstellar medium, supernova remnants, and pulsar ...
Adrien Picquenot +5 more
semanticscholar +1 more source
The ASTRO-H X-ray astronomy satellite [PDF]
Astronomical Telescopes and Instrumentation, 2014 The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions developed by the Institute of Space and Astronautical Science (ISAS), with a planned launch in 2015.
Tadayuki Takahashi +247 more
semanticscholar +1 more source
ASCA view on High-Redshift Radio-Quiet Quasars [PDF]
, 2000 We briefly discuss the latest ASCA results on the X-ray spectral properties of high-redshift radio-quiet quasars.Comment: 4 pages, 1 figure, to appear in the Proceedings of the Conference "X-ray Astronomy '999: Stellar Endpoints, AGNs, and the Diffuse ...
Cappi, M. +4 more
core +3 more sources