Results 11 to 20 of about 228,477 (295)
An efficient photoelectric X-ray Polarimeter for the study of Black Holes and Neutron Stars [PDF]
In astronomy there are basically four kinds of observations to extract the information carried by electromagnetic radiation: photometry, imaging, spectroscopy and polarimetry.
Bellazzini, Ronaldo +5 more
core +2 more sources
ASCA view on High-Redshift Radio-Quiet Quasars [PDF]
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
Laue gamma-ray lenses for space astrophysics:status and prospects [PDF]
We review feasibility studies, technological developments and astrophysical prospects for Laue lenses devoted to hard X-/gamma-ray astronomy observations.Comment: 26 pages, 24 figures. Published in a special issue (Volume 2010 (2010), Article ID 215375,
Frontera, Filippo, Von Ballmoos, Peter
core +2 more sources
Optical and near-infrared observations of the GRB 970616 error box [PDF]
We report on near-infrared and optical observations of the GRB 970616 error box and of the X-ray sources discovered by ASCA and ROSAT in the region. No optical transient was found either within the IPN band or in the X-ray error boxes, similarly to other
Castro-Tirado, A. J. +9 more
core +2 more sources
Use of Gas Electron Multiplier (GEM) Detectors for an Advanced X-ray Monitor [PDF]
We describe a concept for a NASA SMEX Mission in which Gas Electron Multiplier (GEM) detectors, developed at CERN, are adapted for use in X-ray astronomy.
Becker, U. J. +7 more
core +3 more sources
The water dissolution mechanism in silicate melts under high pressures is not well understood. Here we present the first direct structure investigation of a water-saturated albite melt to monitor the interactions between water and the network structure ...
Robert A. Mayanovic +3 more
doaj +1 more source
The Imaging X-ray Polarimetry Explorer (IXPE)
The Imaging X-ray Polarimetry Explorer (IXPE) expands observation space by simultaneously adding polarization to the array of X-ray source properties currently measured (energy, time, and location).
Martin C. Weisskopf +13 more
doaj +1 more source
The high energy X-ray probe: resolved X-ray populations in extragalactic environments
We construct simulated galaxy data sets based on the High Energy X-ray Probe (HEX-P) mission concept to demonstrate the significant advances in galaxy science that will be yielded by the HEX-P observatory.
Bret D. Lehmer +22 more
doaj +1 more source
Introduction to Properties of Galactic X-Ray Sources [PDF]
Since the successful observation by Uhuru, the first astronomical satellite, X-ray astronomy has become one of the rapidly developing fields in astronomy.
Chul-Sung Choi +2 more
doaj
Introduction: Systemic anticoagulation is widely used in routine clinical hemodialysis, but can be contraindicated in specific settings. Anticoagulant-free treatment regimens are prone to failure even in chronic intermittent hemodialysis.
Floris Vanommeslaeghe +5 more
doaj +1 more source

