Cosmological Shock Waves
نویسندگان
چکیده
منابع مشابه
Cosmological shock waves
Large-scale structure formation, accretion and merging processes, AGN activity produce cosmological gas shocks. The shocks convert a fraction of the energy of gravitationally accelerated flows to internal energy of the gas. Being the main gas-heating agent, cosmological shocks could amplify magnetic fields and accelerate energetic particles via the multi-fluid plasma relaxation processes. We fi...
متن کاملShock Waves
Shock wave theory was first studied for gas dynamics, for which shocks appear as compression waves. A shock wave is characterized as a sharp transition, even discontinuity in the flow. In fact, shocks appear in many different physical situation and represent strong nonlinearity of the physical processes. Important progresses have been made on shock wave theory in recent years. We will survey th...
متن کاملCosmological Waveguides for Gravitational Waves
We study the linearized equations describing the propagation of gravitational waves through dust. In the leading order of the WKB approximation, dust behaves as a nondispersive, non-dissipative medium. Taking advantage of these features, we explore the possibility that a gravitational wave from a distant source gets trapped by the gravitational field of a long filament of galaxies of the kind s...
متن کاملShock Waves in Eulerian Cosmological Simulations: Main Properties and Acceleration of Cosmic Rays
Large Scale Shocks are responsible for the heating of the ICM and can be important sources of Cosmic Rays (CR) in the Universe. However the occurrence and properties of these shocks are still poorly constrained from both a theoretical and an observational side. In this work we analyze the properties of Large Scale Shocks in a (103Mpc/h) cosmological volume simulated with the public 1.0.1 releas...
متن کاملCosmological Shock Waves in the Large Scale Structure of the Universe: Non-gravitational Effects
Cosmological shock waves result from supersonic flow motions induced by hierarchical clustering of nonlinear structures in the universe. These shocks govern the nature of cosmic plasma through thermalization of gas and acceleration of nonthermal, cosmic-ray (CR) particles. We study the statistics and energetics of shocks formed in cosmological simulations of a concordance ΛCDM universe, with a ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Space Science Reviews
سال: 2008
ISSN: 0038-6308,1572-9672
DOI: 10.1007/s11214-008-9312-9