Thermodynamic Structure of the Solar Corona: Tomographic Reconstructions and MHD Modeling
نویسندگان
چکیده
منابع مشابه
the underlying structure of language proficiency and the proficiency level
هدف از انجام این تخقیق بررسی رابطه احتمالی بین سطح مهارت زبان خارجی (foreign language proficiency) و ساختار مهارت زبان خارجی بود. تعداد 314 زبان آموز مونث و مذکر که عمدتا دانشجویان رشته های زبان انگلیسی در سطوح کارشناسی و کارشناسی ارشد بودند در این تحقیق شرکت کردند. از لحاظ سطح مهارت زبان خارجی شرکت کنندگان بسیار با هم متفاوت بودند، (75 نفر سطح پیشرفته، 113 نفر سطح متوسط، 126 سطح مقدماتی). کلا ...
15 صفحه اولMhd-driven Kinetic Dissipation in the Solar Wind and Corona
Mechanisms for the deposition of heat in the lower coronal plasma are discussed, emphasizing recent attempts to reconcile the Ñuid and kinetic perspectives. Structures at magnetohydrodynamic (MHD) scales may drive a nonlinear cascade, preferentially exciting high perpendicular wavenumber Ñuctuations. Relevant dissipative kinetic processes must be identiÐed that can absorb the associated energy ...
متن کاملMHD turbulence and heating of the open field-line solar corona
This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations. Reflection from coronal inhomogeneities plays an important role in sustaining the cascade. Physical and observational constraints are discussed. Kinetic processes tha...
متن کاملMHD evolution of a fragment of a CME core in the outer solar corona
Context. Detailed hydrodynamic modeling explained several features of a fragment of the core of a Coronal Mass Ejection observed with SoHO/UVCS at 1.7 R⊙ on 12 December 1997, but some questions remained unsolved. Aims. We investigate the role of the magnetic fields in the thermal insulation and the expansion of an ejected fragment (cloud) traveling upwards in the outer corona. Methods. We perfo...
متن کاملMHD Modeling of the Interaction Between the Solar Wind and Solar System Objects
Magnetohydrodynamic (MHD) models of plasma can be used to model many phenomena in the solar system. In this work we investigate the use of a general MHD solver the Flash code for the simulation of the interaction between the solar wind and solar system objects. As a test case we simulate the three-dimensional solar wind interaction with a simplified model of a comet and describe the modificatio...
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: Solar Physics
سال: 2020
ISSN: 0038-0938,1573-093X
DOI: 10.1007/s11207-020-01641-z