搜索结果: 1-15 共查到“天文学 shocks”相关记录24条 . 查询时间(0.031 秒)
Powerful H$_2$ Line-cooling in Stephan's Quintet : I - Mapping the Significant Cooling Pathways in Group-wide Shocks,
intergalactic medium shock waves
2014/12/22
We present results from the mid-infrared spectral mapping of Stephan's Quintet using the Spitzer Space Telescope. A 1000 km/s collision has produced a group-wide shock and for the first time the large...
The interstellar medium is not necessary fully ionized. When a shock propagates into the partially ionized medium, some neutral particles leak into the upstream region from the downstream region. In t...
Evidence for mild deviation from power-law distribution of electrons in relativistic shocks: GRB 090902B
radiation mechanisms: non-thermal - methods: analytical - methods: numerical- gamma-rays: bursts, theory - gamma-ray burst: individual: GRB090902B
2011/9/29
Many previous studies have determined that the long lasting emission at X-ray, optical and radio wavelengths from gamma-ray bursts (GRBs), called the afterglow, is likely produced by the external forw...
Mapping photodissociation and shocks in the vicinity of Sgr A*
astrochemistry – Galaxy abundances – Galaxy center – Galaxy
2010/11/16
Aims. We study the chemistry in the harsh environments of galactic nuclei using the nearest one, the Galactic center (GC).Methods. We have obtained maps of the molecular emission within the central fi...
The Role of Diffusive Shock Acceleration on Nonequilibrium Ionization in Supernova Remnant Shocks II: Emitted Spectra
High Energy Astrophysical Phenomena (astro-ph.HE)
2011/1/6
We present a grid of nonequilibrium ionization models for the X-ray spectra from supernova remnants undergoing efficient diffusive shock acceleration. The calculation follows the hydrodynamics of the ...
Computation of synthetic spectra from simulations of relativistic shocks
High Energy Astrophysical Phenomena (astro-ph.HE) Classical Physics (physics.class-ph)
2010/12/24
Particle-in-cell (PIC) simulations of relativistic shocks are in principle capable of predicting the spectra of photons that are radiated incoherently by the accelerated particles. The most direct met...
Cosmic-ray current driven turbulence in shocks with efficient particle acceleration: the oblique, long-wavelength mode instability
High Energy Astrophysical Phenomena (astro-ph.HE) Plasma Physics (physics.plasm-ph)
2010/12/23
In order for diffusive shock acceleration (DSA) to accelerate particles to high energies, the energetic particles must be able to interact with magnetic turbulence over a broad wavelength range.
The spectrum of Cosmic Rays escaping from relativistic shocks
Cosmic Rays relativistic shocks
2010/3/8
We derive expressions for the time integrated spectrum of Cosmic Rays (CRs) that are accelerated in a decelerating relativistic shock wave and escape ahead of the shock. It is assumed that at any give...
The Emission from Photoionized Stellar Wind Bow Shocks
Photoionized Stellar Wind Bow Shocks
2009/6/25
The Emission from Photoionized Stellar Wind Bow Shocks。
Searching evidences for spiral shocks in the quiescent Accretion disk of u gem
spiral shocks quiescent Accretion disk u gem
2009/6/17
Searching evidences for spiral shocks in the quiescent Accretion disk of u gem。
Dynamic Shocks in the Inhomogeneous Environment of the Cygnus Loop
Inhomogeneous Environment Cygnus Loop
2009/6/16
Dynamic Shocks in the Inhomogeneous Environment of the Cygnus Loop。
Clouds and Instabilities in Supernova Remnant Structure：Interstellar Turbulence and Rippled Shocks
Supernova Remnant Structure Interstellar Turbulence Rippled Shocks
2009/6/16
Clouds and Instabilities in Supernova Remnant Structure：Interstellar Turbulence and Rippled Shocks。
Fast Molecular Hydrogen from Time-Dependent Shocks
Fast Molecular Hydrogen Time-Dependent Shocks
2009/6/15
Fast Molecular Hydrogen from Time-Dependent Shocks。
Eta Carinae：Bullet Streams and Colliding Wind Shocks。
Photoionization, shocks or starbursts?