搜索结果: 76-90 共查到“知识库 太阳物理学”相关记录183条 . 查询时间(3.109 秒)
Morphology and Spectral Behavior of Solar Hard X-Ray Sources。
On determining the sources of hot gas in the halo。
A Simple Model for Reflection-Driven Spectral Evolution of Turbulence in the Corona and Inner Heliosphere
Inner Heliosphere Corona Reflection-Driven Spectral Evolution
2009/5/27
Dissipation of turbulence is generally considered as a prime candidate for the heating and acceleration of solar wind from the corona throughout the heliosphere, due to radially evolving dissipation p...
Energetic neutral atom fluxes from the heliosheath varying with the activity phase of the solar cycle
Energetic neutral atom fluxes solar cycle
2009/5/27
Energetic neutral atoms (ENA's) which are produced in the heliospheric interface can be used to remotely investigate this highly interesting, but poorly known region acting as buffer against the inter...
Small-scale Alfvènic turbulence in the outer heliosphere is mainly determined by a source which is connected with the instability of the initially highly anisotropic velocity distribution of interstel...
MHD modeling of the Heliosphere：a critical evaluation of different models
Heliosphere critical evaluation
2009/5/27
The very complicated problem of the solar wind-interstellar medium interaction requires a very sophisticated numerical approach. To achieve such a goal first we need to understand very deeply the resu...
MHD simulation of electric currents in the solar atmosphere caused by photospheric plasma motion
Bright Points electric currents solar atmosphere
2009/5/27
Photospheric plasma motion may cause the build-up of electric currents in the solar atmosphere. These electric currents may then dissipate and heat the corona, cause EUV and X-ray Bright Points (BPs)...
The Heliospheric Magnetic Field over the Hale Cycle
Heliospheric Magnetic Field Hale Cycle coronal mass ejections
2009/5/27
The concept that open magnetic flux of the Sun (rooted with one and only one footpoint at the Sun) is a conserved quantity is taking root in the heliospheric community. Observations show that the Sun'...
The interior of the Sun is not directly observable to us. Nevertheless, it is possible to infer the physical conditions prevailing in the solar interior with the help of theoretical models coupled w...
Parametric Identification of Solar Series based on an Adaptive Parallel Methodology
Sunspot time series system identification parametric modelling optimization parallelism adaptation
2009/5/12
In this work we present an adaptive parallel methodology
to optimize the identification of time series through parametric models,
applying it to the case of sunspot series. We employ high precision
...
Excitation of Solar-like Oscillations：From PMS to MS Stellar Models
Turbulence convection oscillations excitation sun stars:α Cen A—stars:main and pre-main sequence stars
2009/5/12
The amplitude of solar-like oscillations results from a balance
between excitation and damping. As in the sun, the excitation is attributed
to turbulent motions that stochastically excite the p mode...
Oblique Propagation and Dissipation of Alfvén Waves in Coronal Holes
Sun Alfv´ en waves coronal holes solar wind
2009/5/12
We investigate the effect of viscosity and magnetic diffusivity
on the oblique propagation and dissipation of Alfv´en waves with respect
to the normal outward direction, making use of MHD equa...
Long-term variation in the distribution of the solar filaments
observed at the Observatorie de Paris, Section de Meudon from March
1919 to December 1989 is presented to compare with sunspot cycle a...
Distribution of Latitudes and Speeds of Coronal Mass Ejections in the Northern and Southern Hemispheres in Cycle 23
Sun activity—Sun Coronal Mass Ejections (CMEs)
2009/5/12
Distribution of latitudes and speeds of Coronal Mass Ejections
(CMEs) in the northern and southern hemispheres in cycle 23, from
September 1996 to December 2006, have been analyzed. By calculating
...
Search for Orbital Motion of the Pulsar 4U 1626-67: Candidate for a Neutron Star with a Supernova Fall-back Accretion Disk
Stars binaries eclipsing stars binaries spectroscopic
2009/5/12
We use the method introduced by Karami & Mohebi (2007), and Karami & Teimoorinia (2007) which enable us to derive the orbital parameters of the spectroscopic binary stars by the nonlinear least square...