Results 81 to 90 of about 339,109 (364)
A search for TeV gamma ray emission from X-ray binary stars [PDF]
, 1993 This work is concerned with the detection of pulsed TeV gamma ray emission from a number of X-ray binary systems by the use of the atmospheric Cerenkov technique.
Bowden, Christopher Charles Geoffrey
core
X-ray Polarization from Magnetar Sources
GalaxiesThe launch of the IXPE telescope in late 2021 finally made polarization measurements in the 2–8keV band a reality, more than 40 years after the pioneering observations of the OSO-8 satellite.
Roberto Taverna , Roberto Turolla
doaj +1 more source
Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects
Advanced Engineering Materials, EarlyView.This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula +7 more
wiley +1 more source
Atmospheric Cerenkov astronomy of cataclysmic variables & other potential gamma ray sources [PDF]
, 1993 Recent developments in the application of the atmospheric Cerenkov technique to 7-ray astronomy are reviewed here. These include new methods of signal to noise enhancement and the increasing diversity of stellar systems positively identified as Very High
Bradbury, S.M, Bradbury, Stella Marie
core
The Galactic Population of Magnetars: A Simulation-based Inference Study
The Astrophysical JournalPopulation synthesis modeling of the observed dynamical and physical properties of a population is a highly effective method for constraining the underlying birth parameters and evolutionary tracks.
M. Sautron +5 more
doaj +1 more source
Acta Polytechnica CTU Proceedings, 2014 We present the results of X-ray and Near-Infrared observations of the Galactic Ridge X-ray Emission (GRXE). We extracted 2,002 X-ray point sources in the Chandra Bulge Field (l =0°.113, b = 1°.424) down to ~10-14.8 ergscm-2s-1 in 2-8 keV band with the ...
Kumiko Morihana +2 more
doaj +1 more source
Neutron Stars as X-ray Sources
Nature, 1964 DURING the rocket flight reported in the preceding communication, Bowyer et al. found two celestial X-ray sources with diameters less than 5°. One was located in the northern part of Scorpius in a region of faint stars but devoid of visible nebulosity and radio objects, while the other was coincident with the Crab Nebula, the well-known source of ...
openaire +1 more source
Advanced Engineering Materials, EarlyView.This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo +3 more
wiley +1 more source
Monitoring the X-Ray Variability of Bright X-Ray Sources in M33
The Astrophysical JournalWe present a new five-epoch Chandra X-ray Observatory monitoring survey of the nearby spiral galaxy M33 which probes X-ray variability with time sampling between two weeks and four months.
Rebecca Kyer +10 more
doaj +1 more source
Hard X-ray or Gamma Ray source based on the two-stream instability and backward Raman scattering [PDF]
, 2020 SeungHyun Son
openalex +1 more source