Results 51 to 60 of about 43,788 (263)

Performance Enhancement in Hafnium Oxide Through Homogeneous and Heterogeneous co‐Doping Strategies

Advanced Electronic Materials, Volume 12, Issue 7, 6 April 2026.
This article presents a comprehensive co‐doping toolkit to optimize the performance and reliability of fluorite‐structure ferroelectrics like hafnium oxide. By employing homogeneous and heterogeneous co‐doping strategies, precise control over crystallization behavior, polarization hysteresis, and oxygen vacancy distribution is achieved.
Shouzhuo Yang, David Lehninger, Markus Neuber, Amir Pourjafar, Yannick Raffel, Ayse Sünbül, Anant Rastogi, Peter Reinig, Thomas Kämpfe, Konrad Seidel, Maximilian Lederer   +10 more
wiley   +1 more source

The Quiescent X‐Ray Emission of Three Transient X‐Ray Pulsars

The Astrophysical Journal, 2002
We report on BeppoSAX and Chandra observations of three Hard X-Ray Transients in quiescence containing fast spinning (P<5 s) neutron stars: A 0538-66, 4U 0115+63 and V 0332+53. These observations allowed us to study these transients at the faintest flux levels thus far. Spectra are remarkably different from the ones obtained at luminosities a factor
Alberto Moretti, Luigi Stella, G. L. Israel, Mauro Orlandini, Sergio Campana, Arvind Parmar   +5 more
openaire   +4 more sources

Survey of X-ray pulsars in hard X-rays [PDF]

Proceedings of The Extreme sky: Sampling the Universe above 10 keV — PoS(extremesky2009), 2010
Results of spectral, timing and spatial analysis of X-ray pulsars in hard X-rays are briefly discussed. Using data of INTEGRAL, XMM-Newton and Chandra observatories we determined an optical counterparts and distances for several X-ray pulsars and built the spatial distribution of this class objects in the Galaxy. Variations of the cyclotron line energy
Alexander Lutovinov, Sergey Tsygankov
openaire   +1 more source

A study of the long term evolution of quasi periodic oscillations in the accretion powered X-ray pulsar 4U 1626-67 [PDF]

, 2008
We report here a study of the long term properties of Quasi Periodic Oscillations (QPO) in an unusual accreting X-ray pulsar, 4U 1626--67. This is a unique accretion powered X-ray pulsar in which we have found the QPOs to be present during all ...
Kaur, Ramanpreet, Kumar, Brijesh, Paul, Biswajit, Sagar, Ram   +3 more
core   +2 more sources

The Pointing Error Due To Laser Propagation in Space Plasma for TianQin Gravitational Wave Detection

Space Weather, Volume 24, Issue 4, April 2026.
Abstract TianQin, a space‐borne gravitational wave observatory, is designed to detect gravitational‐wave signals via laser interferometry. As the inhomogeneous space plasma surrounds the inter‐satellite laser links, the propagation of the laser in space plasma can introduce pointing error noise.
Shenwei Zhou, Wei Su, Shiyuan Zhou, Chaofan Li, Jixiang Zhang   +4 more
wiley   +1 more source

Phase-resolved Deadtime of the Crab Pulsar Using IXPE Data

The Astrophysical Journal
After receiving an X-ray photon, an X-ray detector is not operational for a duration known as deadtime. It is detector specific and its effect on the data depends upon the luminosity of the source.
M. Vivekanand
doaj   +1 more source

XMM-Newton discovery of transient X-ray pulsar in NGC 1313

, 2008
We report on the discovery and analysis of the transient X-ray pulsar XMMU J031747.5-663010 detected in the 2004 November 23 XMM-Newton observation of the spiral galaxy NGC 1313.
Basko M. M., Chernyakova M., Corbet R. H. D., Karasev D. I., Leahy D. A., Mizuno T., Petre R., S. P. Trudolyubov, White N. E.   +8 more
core   +1 more source

Multifunctional Carbon‐Nanotube Supported Catalyst for Efficient Glycerol Hydrogenolysis to 1,2‐propanediol

ChemCatChem, Volume 18, Issue 5, 13 March 2026.
ABSTRACT Multiwall carbon nanotube (NC7000) supported mono‐, bi‐, and trimetallic catalysts were synthesized and tested in a multi‐batch reactor setup supported by data‐driven modeling for the chemical hydrogenolysis of glycerol to 1,2‐Propanediol (1,2‐PDO) at 220°C under 30 bar hydrogen pressure in aqueous solution. ICP‐OES, N2‐physisorption, scanning
Dominique Lumpp, Samrin Shaikh, Fabian Riebesehl, Charlotte Ruhmlieb, Kai Kruber, Baldur Schroeter, Irina Smirnova, Mirko Skiborowski, Bodo Fiedler, Jakob Albert   +9 more
wiley   +1 more source

The radiative X-ray and gamma-ray efficiencies of rotation powered pulsars

, 2010
We present a statistical analysis of the X-ray luminosity of rotation powered pulsars and their surrounding nebulae using the sample of Kargaltsev & Pavlov (2008) and we complement this with an analysis of the gamma-ray-emission of Fermi detected pulsars.
Abdo, Arons, Aya Bamba, Bamba, Bamba, Becker, Camilo, Cheng, de Jager, Gaensler, Gelfand, Harding, Helfand, Hester, Hibschman, Jacco Vink, Kargaltsev, Manchester, Mattana, Renaud, Ryo Yamazaki, Verbunt, Vink   +22 more
core   +7 more sources

XMM-Newton and Chandra Observations of the Candidate Fermi-LAT Pulsar 4FGL J1015.5-6030

The Astrophysical Journal, 2023
4FGL J1015.5-6030 is an unidentified Fermi-LAT source hosting a bright, extended X-ray source whose X-ray spectrum is consistent with that of a young pulsar, yet no pulsations have been found.
Jeremy Hare, Oleg Kargaltsev, George Younes, George G. Pavlov, Igor Volkov   +4 more
doaj   +1 more source