Results 11 to 20 of about 13,324 (197)
The Imaging X-ray Polarimetry Explorer (IXPE) [PDF]
Results in Physics, 2016 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 +9 more sources
XIPE: the X-ray imaging polarimetry explorer [PDF]
Experimental Astronomy, 2013 X-ray polarimetry, sometimes alone, and sometimes coupled to spectral and temporal variability measurements and to imaging, allows a wealth of physical phenomena in astrophysics to be studied. X-ray polarimetry investigates the acceleration process, for example, including those typical of magnetic reconnection in solar flares, but also emission in the ...
Soffitta, Paolo +98 more
exaly +14 more sources
Broadband soft x-ray polarimetry [PDF]
SPIE Proceedings, 2010 We developed an instrument design capable of measuring linear X-ray polarization over a broad-band using conventional spectroscopic optics. A set of multilayer-coated flats reflects the dispersed X-rays to the instrument detectors. The intensity variation with position angle is measured to determine three Stokes parameters: I, Q, and U -- all as a ...
Schulz, Norbert S. +3 more
openaire +4 more sources
X-ray Polarimetry of X-ray Pulsars
GalaxiesRadiation from X-ray pulsars (XRPs) was expected to be strongly linearly polarized owing to a large difference in their ordinary and extraordinary mode opacities. The launch of IXPE allowed us to check this prediction. IXPE observed a dozen X-ray pulsars,
Juri Poutanen +2 more
doaj +4 more sources
Studying Microquasars with X-Ray Polarimetry [PDF]
Galaxies, 2018 Microquasars are Galactic black hole systems in which matter is transferred from a donor star and accretes onto a black hole of, typically, 10–20 solar masses.
Giorgio Matt, Francesco Tamborra
doaj +2 more sources
Scientific prospects for hard X-ray polarimetry [PDF]
Astroparticle Physics, 2011 X-ray polarimetry promises to give qualitatively new information about high-energy sources. Examples of interesting source classes are binary black hole systems, rotation and accretion powered neutron stars, Microquasars, Active Galactic Nuclei and Gamma-Ray Bursts. Furthermore, X-ray polarimetry affords the possibility for testing fundamental physics,
Krawczynski, H. +6 more
openaire +4 more sources
High-Energy Polarization: Scientific Potential and Model Predictions
Galaxies, 2017 Understanding magnetic field strength and morphology is very important for studying astrophysical jets. Polarization signatures have been a standard way to probe the jet magnetic field.
Haocheng Zhang
doaj +3 more sources
An Overview of X-Ray Polarimetry of Astronomical Sources
Galaxies, 2018 We review the history of astronomical X-ray polarimetry based on the author’s perspective, beginning with early sounding-rocket experiments by Robert Novick at Columbia University and his team, of which the author was a member.
Martin C. Weisskopf
doaj +3 more sources
Instrumentation and Future Missions in the Upcoming Era of X-ray Polarimetry
Galaxies, 2018 The maturity of current detectors based on technologies that range from solid state to gases renewed the interest for X-ray polarimetry, raising the enthusiasm of a wide scientific community to improve the performance of polarimeters as well as to ...
Sergio Fabiani
doaj +3 more sources
The enhanced X-ray Timing and Polarimetry mission—eXTP [PDF]
Science China Physics, Mechanics & Astronomy, 2018 In this paper we present the enhanced X-ray Timing and Polarimetry mission - eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the ...
Zhang, ShuangNan +152 more
openaire +11 more sources