Decibel
发表于 2025-3-25 04:37:40
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EVEN
发表于 2025-3-25 07:50:19
Zhi-bing Fu,Qing-kui Chen,Ming-ming Wanga, observed at the ground only during total solar eclipses a long time ago, has been observed with special coronographs since the ‘30s. However, the last three decades, beginning with OSO 7 and Skylab space missions, contributed enormously to our present knowledge of the solar corona. Today the coro
询问
发表于 2025-3-25 13:11:48
Jianqing Weng,Songzhi Su,Xiaoliang Fan loops and of streamers, extending up to several solar radii. The corona is separated from the chromosphere by a narrow transition region with very high temperature gradients. In this very thin layer, the temperature increases from about 10 000 K in the chromosphere up to millions K in the corona. T
choroid
发表于 2025-3-25 18:43:54
Wenju Chen,Kun Guo,Yuzhong Chen than the line width. This corresponds to magnetic observations of chromosphere, prominences and the corona requiring more advanced technique as compared with the photosphere. Direct and indirect methods of magnetic researches in the upper solar atmosphere are briefly reviewed. The “signal-to-noise”
curriculum
发表于 2025-3-25 19:59:36
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少量
发表于 2025-3-26 02:21:13
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diathermy
发表于 2025-3-26 07:10:05
https://doi.org/10.1007/978-981-99-9640-7l approach that captures the complicated dynamical interaction between plasma and magnetic fields. These equations are therefore widely used for investigating the dynamical processes that takes place in the solar atmosphere. The MHD equations can also be used to provide information about the field l
滔滔不绝地讲
发表于 2025-3-26 11:02:35
https://doi.org/10.1007/978-981-99-9640-7ocal thermodynamical equilibrium (NLTE), without appealing to any previous knowledge except a few basics of physics and spectroscopy. After recalling elementary notions of radiation transfer, the chapter is focussed on the computation of the level populations, the source function, the ionization sta
远地点
发表于 2025-3-26 13:59:05
Shuai Liu,Zi-Jia Wang,Zong-Gan Chenr. While most of stellar atmospheres are simply modelled as one-dimensional (1D) plane-parallel or spherically-symmetrical layer, the solar atmosphere must generally be resolved into various brightness components which also exhibit quite different behaviour. Therefore, a single solar atmospheric mod
chandel
发表于 2025-3-26 19:14:17
https://doi.org/10.1007/978-981-99-9637-7e interior and, first of all, to explain the source of the energy radiated by the Sun. Already sir Arthur Eddington in his . published in 1926 presents the hypothesis that the energy is liberated in building up helium nucleus from four protons, as most plausible explanation. By early 1940ies, mostly