Results 91 to 100 of about 121,901 (271)

Pulsar Results with the Fermi Large Area Telescope

, 2010
The launch of the Fermi Gamma-ray Space Telescope has heralded a new era in the study of gamma-ray pulsars. The population of confirmed gamma-ray pulsars has gone from 6-7 to more than 60, and the superb sensitivity of the Large Area Telescope (LAT) on ...
A Pellizzoni, AK Harding, AKH Kong, AM Chandler, C Venter, DA Smith, DJ Champion, F Aharonian, F Camilo, F Crawford, G Hobbs, GB Hobbs, I Yadigaroglu, JP Halpern, JP Halpern, JP Halpern, KP Watters, L Kuiper, M Kramer, M Ziegler, MJ Keith, MSE Roberts, RC Hartman, RW Romani, SA Story, TC Weekes, V Ravi, VM Kaspi, WB Atwood, WB Atwood, X Bai, ZJ Jiang   +31 more
core   +1 more source

An evolutionary model for pulsar-driven supernova remnants [PDF]

Astron.Astrophys.420:937-944,2004, 2003
We present a model of a pulsar wind nebula evolving inside its associated supernova remnant. The model uses a hydrodynamics code to simulate the evolution of this system when the pulsar has a high velocity. The simulation distinguishes four different stages of pulsar wind nebula evolution: the supersonic expansion stage, the reverse shock interaction ...
arxiv   +1 more source

Electron Density Structure Measurements With Scattered Intense Laser Beam

Contributions to Plasma Physics, EarlyView.
ABSTRACT Short‐pulse intense lasers have the potential to model extreme astrophysical environments in laboratories. Although there are diagnostics for energetic electrons and ions resulting from laser‐plasma interactions, the diagnostics to measure velocity distribution functions at the interaction region of the laser and plasma are limited.
K. Sakai, K. Himeno, S. J. Tanaka, T. Asai, T. Minami, Y. Abe, F. Nikaido, K. Kuramoto, M. Kanasaki, H. Kiriyama, A. Kon, K. Kondo, N. Nakanii, W. Y. Woon, C. M. Chu, K. T. Wu, C. S. Jao, Y. L. Liu, T. A. Pikuz, H. Kohri, A. O. Tokiyasu, S. Isayama, H. S. Kumar, K. Tomita, Y. Fukuda, Y. Kuramitsu   +25 more
wiley   +1 more source

Testing Relativistic Gravity with Radio Pulsars [PDF]

, 2014
Before the 1970s, precision tests for gravity theories were constrained to the weak gravitational fields of the Solar system. Hence, only the weak-field slow-motion aspects of relativistic celestial mechanics could be investigated. Testing gravity beyond
N. Wex
semanticscholar   +1 more source

Detecting dark matter with imploding pulsars in the galactic center. [PDF]

Physical Review Letters, 2014
The paucity of old millisecond pulsars observed at the galactic center of the Milky Way could be the result of dark matter accumulating in and destroying neutron stars.
J. Bramante, T. Linden
semanticscholar   +1 more source

The Emission Geometry of Pulsars with Interpulses

The Astrophysical Journal
We present polarization profiles of 23 pulsars exhibiting interpulse (IP) emissions using the Five-hundred-meter Aperture Spherical Radio Telescope. By applying the rotating vector model (RVM), we measured the inclination and impact angles for 16 pulsars,
S. N. Sun, N. Wang, W. M. Yan, S. Q. Wang   +3 more
doaj   +1 more source

Polarimetric Evidence of the First White Dwarf Pulsar: The Binary System AR Scorpii

Galaxies, 2018
The binary star AR Scorpii was recently discovered to exhibit high amplitude coherent variability across the electromagnetic spectrum (ultraviolet to radio) at two closely spaced ∼2 min periods, attributed to the spin period of a white dwarf and the beat
David A.H. Buckley, Stephen B. Potter, Pieter J. Meintjes, Tom R. Marsh, Boris T. Gänsicke   +4 more
doaj   +1 more source

Equilibrium spin pulsars unite neutron star populations

, 2013
Many pulsars are formed with a binary companion from which they can accrete matter. Torque exerted by accreting matter can cause the pulsar spin to increase or decrease, and over long times, an equilibrium spin rate is achieved.
Andersson, Nils, Coe, M. J., Ho, Wynn C. G., Klus, H.   +3 more
core   +1 more source

Interventional therapies for chronic heart failure: An overview of recent developments

ESC Heart Failure, Volume 12, Issue 2, Page 1081-1094, April 2025.
Abstract Heart failure (HF), the final manifestation of most cardiovascular diseases, has become a major global health concern, affecting millions of individuals. Despite basic drug treatments, patients present with high morbidity and mortality rates. However, recent advancements in interventional therapy have shown promising results in improving the ...
Bingchen Guo, Si Shi, Yutong Guo, Jie Xiong, Bo Wang, Zengxiang Dong, Dianyu Gao, Yingfeng Tu   +7 more
wiley   +1 more source

The LOFAR pilot surveys for pulsars and fast radio transients [PDF]

, 2014
We have conducted two pilot surveys for radio pulsars and fast transients with the Low-Frequency Array (LOFAR) around 140 MHz and here report on the first low-frequency fast-radio burst limit and the discovery of two new pulsars.
T. Coenen, J. V. Leeuwen, J. Hessels, B. Stappers, V. Kondratiev, A. Alexov, R. Breton, A. Bilous, S. Cooper, H. Falcke, H. Falcke, R. Fallows, V. Gajjar, J. Grießmeier, T. Hassall, A. Karastergiou, E. Keane, M. Kramer, M. Kuniyoshi, A. Noutsos, S. Osłowski, S. Osłowski, M. Pilia, M. Serylak, C. Schrijvers, C. Sobey, S. Veen, J. Verbiest, P. Weltevrede, S. Wijnholds, K. Zagkouris, A. V. Amesfoort, James M. Anderson, A. Asgekar, I. Avruch, M. Bell, M. Bentum, G. Bernardi, P. Best, A. Bonafede, F. Breitling, J. Broderick, M. Brüggen, H. Butcher, B. Ciardi, A. Corstanje, A. Deller, S. Duscha, J. Eislöffel, R. Fender, C. Ferrari, W. Frieswijk, M. Garrett, F. Gasperin, E. D. Geus, A. Gunst, J. Hamaker, G. Heald, M. Hoeft, A. Horst, E. Juette, G. Kuper, C. Law, C. Law, G. Mann, R. McFadden, D. McKay-Bukowski, D. McKay-Bukowski, J. McKean, H. Munk, E. Orrú, H. Paas, M. Pandey-Pommier, A. Polatidis, W. Reich, A. Renting, H. Röttgering, A. Rowlinson, A. Scaife, D. Schwarz, J. Sluman, O. Smirnov, J. Swinbank, M. Tagger, Y. Tang, C. Tasse, S. Thoudam, C. Toribio, R. Vermeulen, C. Vocks, R. V. Weeren, O. Wucknitz, P. Zarka, A. Zensus   +93 more
semanticscholar   +1 more source