搜索结果: 46-60 共查到“知识库 等离子体天体物理学”相关记录285条 . 查询时间(5.085 秒)
Warm dark matter at small scales: peculiar velocities and phase space density
Warm dark matter small scales peculiar velocities phase space density
2010/11/12
We study the scale and redshift dependence of the power spectra for density perturbations and
peculiar velocities, and the evolution of a coarse grained phase space density for (WDM) particles that d...
Molecular environment and thermal X-ray spectroscopy of the semicircular young composite supernova remnant 3C 396
ISM individual (3C 396 G39.2− 0.3) – ISM molecules – supernova remnants
2010/11/15
We have investigated the molecular gas environment of the semicircular composite supernova rem-
nant (SNR) 3C 396 in multiwavelengths and performed a Chandra spatially resolved thermal X-ray
spectro...
The Properties of Type Ia Supernova Host Galaxies from the Sloan Digital Sky Survey
galaxies fundamental parameters — galaxies statistics — supernovae general
2010/11/12
We investigate the properties and environments of Type Ia Supernova (SN Ia) host galaxies in
the Stripe 82 of the Sloan Digital Sky Survey-II Supernova Survey centered on the celestial equator.Host g...
Impact of Primordial Ultracompact Minihaloes on the Intergalactic Medium and First Structure Formation
intergalactic medium dark matter cosmology theory early Universe galaxies structure
2010/11/12
The effects of dark matter annihilation on the evolution of intergalactic medium(IGM) in the early Universe can be more important if dark matter structure is more concentrated. Ultracompact Minihaloes...
A Supersymmetric model for triggering Supernova Ia in isolated white dwarfs
Supersymmetric model Supernova Ia
2010/11/11
In a two parameter phase transition model we fit the rate and several properties of type I super-novae and address the gap in the supermassive black hole mass distribution. One parameter is a critical...
The orbital and superhump periods of the dwarf nova HS 0417+7445 in Camelopardalis
bital and superhump periods Camelopardalis
2010/11/11
We present the 2005–2010 outburst history of the SUUMa-type dwarf HS 0417+7445,along with a detailed analysis of extensive time-series photometry obtained in March 2008 during the second recorded supe...
Studying the Warm-Hot Intergalactic Medium in Emission
cosmology observations intergalacticmedium large-scale structure of Universe X-rays
2010/11/12
We assess the possibility to detect the warm-hot intergalactic medium (WHIM) in emission and
to characterize its physical conditions and spatial distribution through spatially resolved X-ray spec-tro...
Alfven seismic vibrations of crustal solid-state plasma in quaking paramagnetic neutron star
Alfven seismic vibrations paramagnetic neutron star
2010/11/11
Magneto-solid-mechanical model of two-component, core-crust, paramagnetic neutron star responding to quake-induced perturbation by differentially rotational, torsional, oscillations of crustal electro...
N-body Simulations for f(R) Gravity using a Self-adaptive Particle-Mesh Code
N-body Simulations Self-adaptive Particle-Mesh Code
2010/11/11
We perform high resolution N-body simulations for f(R) gravity based on a self-adaptive particle-mesh code MLAPM. The Chameleon mechanism that recovers General Relativity on small scales is fully take...
Fuel Efficient Galaxies: Sustaining Star Formation with Stellar Mass Loss
cosmology theory – galaxies evolution – galaxies formation – stars formation – methods
2010/11/11
We examine the importance of secular stellar mass loss for fueling ongoing star formation in disk galaxies during the late stages of their evolution. For a galaxy of a given stellar mass, we calculate...
Non-adiabatic perturbations in multi-component perfect fluids
Non-adiabatic perturbations multi-component perfect fluids
2010/11/16
Еvolution of non-adiabatic perturbations in models with multiple coupled perfect fluids with
non-adiabatic sound speed is considered. Instead of splitting the entropy perturbation on relative and int...
Spin and spin-isospin instabilities in asymmetric nuclear matter at zero and finite temperatures using Skyrme functionals
Spin spin-isospin instabilities asymmetric nuclear matter at zero finite temperatures
2010/11/16
Self-consistent mean field methods based on phenomenological Skyrme effective interactions are
known to exhibit spurious spin and spin-isospin instabilities both at zero and finite temperatures when ...
ISW-LSS cross-correlation in coupled Dark Energy models with massive neutrinos
cosmic microwave background cosmology: miscellaneous cosmology observations cosmology: theory cosmology: large-scale structure of universe
2010/11/9
We provide an exhaustive analysis of the Integrated Sach–Wolfe effect (ISW) in the context of coupled Dark Energy cosmologies where a component of massive neutrinos is also present. We focus on the ef...
The Cluster Birthline and the formation of stellar clusters in M33
Cluster Birthline stellar clusters
2010/11/10
We present a new method to analyze the IMF at its high mass end in young stellar clusters, which rely on two integrated observables: the cluster bolometric and H luminosity.Using several cluster samp...
Fe-K line probing of material around the AGN central engine with Suzaku
galaxies active — galaxies Seyfert — X-rays galaxies
2010/11/11
We systematically analyzed the high-quality Suzaku data of 88 Seyfert galax-ies, about 31% of which are Compton-thick AGNs. We obtained a clear relation between the absorption column density and the e...