Results 21 to 30 of about 35,358 (192)
Astrophysical Journal, 2022 Extreme radiative phenomena, where the radiation energy density and flux strongly influence the medium, are common in the universe. Nevertheless, because of limited or nonexistent observational and experimental data, the validity of theoretical and ...
V. Tranchant +4 more
semanticscholar +1 more source
Studies of high energy density physics and laboratory astrophysics driven by intense lasers
, 2016 Laser plasmas are capable of creating unique physical conditions with extreme high energy density, which are not only closely relevant to inertial fusion energy studies, but also to laboratory simulation of some astrophysical processes. In this paper, we
J. Zhang +7 more
semanticscholar +1 more source
Observation of collapsing radiative shocks in laboratory experiments [PDF]
, 2006 This article reports the observation of the dense, collapsed layer produced by a radiative shock in a laboratory experiment. The experiment uses laser irradiation to accelerate a thin layer of solid-density material to above 100 km/s100km∕s, the first to
Boehly, T. +16 more
core +2 more sources
, 2014 Recent years have seen tremendous progress in our understanding of the cosmos, which in turn points to even deeper questions to be further addressed. Concurrently the laser technology has undergone dramatic revolutions, providing exciting opportunity for
Chen, Pisin
core +1 more source
General relativity and relativistic astrophysics
, 2016 Einstein established the theory of general relativity and the corresponding field equation in 1915 and its vacuum solutions were obtained by Schwarzschild and Kerr for, respectively, static and rotating black holes, in 1916 and 1963, respectively.
Mukhopadhyay, Banibrata
core +1 more source
The Astrophysics of Ultrahigh Energy Cosmic Rays
, 2011 The origin of the highest energy cosmic rays is still unknown. The discovery of their sources will reveal the workings of the most energetic astrophysical accelerators in the universe.
Ahn HS +5 more
core +1 more source
Fundamental Physics and Relativistic Laboratory Astrophysics with Extreme Power Lasers
, 2012 The prospects of using extreme relativistic laser-matter interactions for laboratory astrophysics are discussed. Laser-driven process simulation of matter dynamics at ultra-high energy density is proposed for the studies of astrophysical compact objects ...
Bulanov, S. V., Esirkepov, T. Zh.
core +1 more source
Proton Acceleration with Relativistic Electromagnetic Shock
Advanced Science, EarlyView.New Ion Acceleration Mechanism! A novel cosmic‐ray proton acceleration mechanism is proposed, where relativistic electromagnetic shocks accelerate protons transversely. Hamiltonian analysis yields a scaling law linking the proton energy to the minimum longitudinal thickness of the shock.
Ting Xiao +5 more
wiley +1 more source
Artificial Intelligence‐Assisted Target Design for High‐Intensity Laser‐Driven Neutron Sources
Advanced Intelligent Systems, EarlyView.This study presents an artificial intelligence (AI)‐assisted target design that combines particle‐in‐cell simulations with gradient ascent algorithm to optimize laser‐driven neutron sources. By enhancing the sheath electric field, the optimized structure increases neutron yield by a factor of 4,000.
Youjing Wang +7 more
wiley +1 more source
Laboratory astrophysics using high energy lasers: need for 2D simulation
, 2008 A certain number of experiments have been performed and planned for the future aiming to reproduce in a laboratory common astrophysical situations [1].
T. Vinci +14 more
semanticscholar +2 more sources