Results 121 to 130 of about 3,042 (156)

Scaling astrophysical phenomena to high-energy-density laboratory experiments

Plasma Physics and Controlled Fusion, 2002
The spatial and temporal scales of astrophysical phenomena are typically 10–20 orders of magnitude greater than those of laboratory experiments intended to simulate them. Accordingly, the issue of similarity between the astrophysical phenomenon and its laboratory counterpart becomes quite important.
D D Ryutov, B A Remington
semanticscholar   +4 more sources

Generalizing the similitude approach for laboratory astrophysics through equivalence symmetries for the example of radiative waves [PDF]

Sci Rep
For decades, scaling laws have served as the cornerstone of laboratory astrophysics, enabling quantitative comparisons between astrophysical phenomena and laboratory experiments.
Victor Tranchant, Nicolas Charpentier, L. Van Box Som, Andrea Ciardi, Émeric Falize   +4 more
semanticscholar   +2 more sources

A Few Selected Topics in Extreme Astrophysical Phenomena: Gamma-ray Burst as a Source of Multi-messenger Astrophysics and Cosmic Particles as a Would-be Messenger

Journal of the Korean Physical Society, 2018
These days of astrophysics are full of exciting discoveries. Gravitational waves are directly found for the first time by Laser Interferometer Gravitational-wave Observatory.
I. H. Park, S. Jeong
semanticscholar   +2 more sources

Radio astronomy and the rise of high-energy astrophysics two anniversaries

International Journal of Modern Physics D, 2019
This paper celebrates the 100th anniversary of the birth of Martin Ryle and the 50th anniversary of the discovery of pulsars by Jocelyn Bell and Antony Hewish.
M. Longair
semanticscholar   +1 more source

CORRIGENDUM: Astrophysical and laboratory experiments and theories on high energy plasmas

, 1994
The effort to produce plasmas that can approach the conditions where ignition by fusion reactions can take place has generated a series of new experiments and theories on high energy plasmas whose results are relevant to the understanding of important ...
B. Coppi
semanticscholar   +2 more sources

Relationship between high-energy physical phenomena on the sun and in astrophysics

Solar Physics, 1988
High energy phenomena on the surface of the Sun are manifestations of part of the solar dynamo cycle. Convection and magnetic field give rise to unstable, twisted flux loops that become solar flares when the resistive tearing mode proceeds to the nonlinear limit.
openaire   +2 more sources

Search for ultra-high energy photons with the AMIGA muon detector

, 2018
Cosmic rays (E > 10 eV) have been known for more than 70 years, and yet their origin remains elusive. Similarly, the possibility of a very-high energy photon component of the cosmic radiation is one of the open problems in Astroparticle Physics.
N. González
semanticscholar   +1 more source

HIGH-ENERGY NEUTRINO ASTROPHYSICS

, 2003
▪ Abstract High-energy (>100 MeV) neutrino astrophysics enters an era of opportunity and discovery as the sensitivity of detectors approaches astrophysically relevant flux levels.
J. Learned, K. Mannheim
semanticscholar   +1 more source

Unification and extension of the similarity scaling criteria and mixing transition for studying astrophysics using high energy density laboratory experiments or numerical simulations

, 2006
The Euler similarity criteria for laboratory experiments and time-dependent mixing transition are important concepts introduced recently for application to prediction and analysis of astrophysical phenomena.
Y. Zhou
semanticscholar   +1 more source

A simple analytical method using Fokker-Planck equation for modeling particle acceleration at astrophysical shocks

Astrophysics
Shocks are ubiquitous in astrophysical environments, and particle acceleration at such astrophysical shocks is related to high-energy phenomena. In particular, the acceleration mechanism and the time evolution of the particle distribution function have ...
J.-H. Ha
semanticscholar   +1 more source