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Dark Matter Cosmology and Astrophysics 被引量:8
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作者 Vladimir S. Netchitailo 《Journal of High Energy Physics, Gravitation and Cosmology》 2019年第4期999-1050,共52页
Hypersphere World-Universe Model (WUM) envisions Matter carried from Universe into World from fourth spatial dimension by Dark Matter Particles (DMPs). Luminous Matter is byproduct of Dark Matter (DM) annihilation. WU... Hypersphere World-Universe Model (WUM) envisions Matter carried from Universe into World from fourth spatial dimension by Dark Matter Particles (DMPs). Luminous Matter is byproduct of Dark Matter (DM) annihilation. WUM introduces Dark Epoch (spanning from Beginning of World for 0.4 billion years) when only DMPs existed, and Luminous Epoch (ever since for 13.8 billion years). Big Bang discussed in standard cosmological model is, in our view, transition from Dark Epoch to Luminous Epoch due to Rotational Fission of Overspinning DM Supercluster’s Cores and annihilation of DMPs. WUM solves a number of physical problems in contemporary Cosmology and Astrophysics through DMPs and their interactions: Angular Momentum problem in birth and subsequent evolution of Galaxies and Extrasolar systems—how do they obtain it;Fermi Bubbles—two large structures in gamma-rays and X-rays above and below Galactic center;Mysterious Star KIC 8462852 with irregular dimmings;Coronal Heating problem in solar physics—temperature of Sun’s corona exceeding that of photosphere by millions of degrees;Cores of Sun and Earth rotating faster than their surfaces;Diversity of Gravitationally-Rounded Objects in Solar system and their Internal Heat;Lightning Initiation problem—electric fields observed inside thunderstorms are not sufficient to initiate sparks;Terrestrial Gamma-Ray Flashes—bursts of high energy X-rays and gamma rays emanating from Earth. Model makes predictions pertaining to Masses of DMPs, proposes New Types of their Interactions. WUM reveals Inter-Connectivity of Primary Cosmological Parameters and calculates their values, which are in good agreement with the latest results of their measurements. 展开更多
关键词 Hypersphere World-Universe Model Law of Conservation of Angular Momentum DARK EPOCH Rotational Fission Luminous EPOCH Multiworld DARK MATTER Particles Macroobject Shell Model DARK MATTER Core Medium of the World Mysterious Star KIC 8462852 DARK MATTER Fermi Bubbles solar corona Geocorona Planetary corona Galactic Wind solar Wind High-Energy Atmospheric Physics Lightning Initiation Problem Terrestrial GAMMA-RAY Flashes GAMMA-RAY BURSTS Gravitational BURSTS Ball Lightning
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Solar System. Angular Momentum. New Physics 被引量:7
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作者 Vladimir S. Netchitailo 《Journal of High Energy Physics, Gravitation and Cosmology》 2019年第1期112-139,共28页
The most widely accepted model of Solar System formation, known as the Nebular hypothesis, does not solve the Angular Momentum problem—why is the orbital momentum of Jupiter larger than rotational momentum of the Sun... The most widely accepted model of Solar System formation, known as the Nebular hypothesis, does not solve the Angular Momentum problem—why is the orbital momentum of Jupiter larger than rotational momentum of the Sun? The present manuscript introduces a Rotational Fission model of creation and evolution of Macrostructures of the World (Superclusters, Galaxies, Extrasolar Systems), based on Overspinning Cores of the World’s Macroobjects, and the Law of Conservation of Angular Momentum. The Hypersphere World-Universe model is the only cosmological model in existence that is consistent with this Fundamental Law. 展开更多
关键词 Hypersphere World-Universe Model Medium of the World Fifth Fundamental Force DARK MATTER Particles Macroobjects Structure Rotational Fission Law of Conservation of Angular Momentum DARK EPOCH Light EPOCH DARK MATTER Reactor solar corona GEOcorona Planetary corona solar Wind
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Hypersphere World-Universe Model: Basic Ideas 被引量:4
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作者 Vladimir S. Netchitailo 《Journal of High Energy Physics, Gravitation and Cosmology》 2020年第4期710-752,共43页
Hypersphere World-Universe Model (WUM) envisions Matter carried from the Universe into the World from the fourth spatial dimension by Dark Matter Particles (DMPs). Luminous Matter is a byproduct of Dark Matter (DM) se... Hypersphere World-Universe Model (WUM) envisions Matter carried from the Universe into the World from the fourth spatial dimension by Dark Matter Particles (DMPs). Luminous Matter is a byproduct of Dark Matter (DM) self-annihilation. WUM introduces Dark Epoch (spanning from the Beginning of the World for 0.45 billion years) and Luminous Epoch (ever since for 13.77 billion years). Big Bang discussed in Standard Cosmology (SC) is, in our view, transition from Dark Epoch to Luminous Epoch due to Rotational Fission of Overspinning DM Supercluster’s Cores and self-annihilation of DMPs. WUM solves a number of physical problems in SC and Astrophysics through DMPs and their interactions: Angular Momentum problem in birth and subsequent evolution of Galaxies and Extrasolar systems;Fermi Bubbles—two large structures in gamma-rays and X-rays above and below Galactic center;Coronal Heating problem in solar physics—temperature of Sun’s corona exceeding that of photosphere by millions of degrees;Cores of Sun and Earth rotating faster than their surfaces;Diversity of Gravitationally-Rounded objects in Solar system and their Internal Heating. Model makes predictions pertaining to Rest Energies of DMPs, proposes New Type of their Interactions. WUM reveals Inter-Connectivity of Primary Cosmological Parameters and calculates their values, which are in good agreement with the latest results of their measurements. 展开更多
关键词 Hypersphere World-Universe Model Law of Conservation of Angular Momentum Dark Epoch Rotational Fission Luminous Epoch Dark Matter Particles Self-Annihilation Macroobject Shell Model Dark Matter Core Medium of the World Dark Matter Fermi Bubbles solar corona GEOcorona Planetary corona Galactic Wind solar Wind Gamma-Ray Bursts Gravitational Bursts Fast Radio Bursts Dark Matter Reactor Lightning Initiation Problem Terrestrial Gamma-Ray Flashes Missing Baryon Problem Energy-Varying Photons
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Near infrared spectral and polarization imaging observation of coronal emission lines during the 2008 total solar eclipse 被引量:5
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作者 BAO XingMing ZHANG ZhiYong +7 位作者 DENG Jian HU KeLiang XUAN WeiJia LIU YangBing ZHANG HongQi DENG YuanYong WANG DongGuang WANG XiaoFan 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2009年第11期1794-1798,共5页
During the 2008 total solar eclipse, the coronal emission lines were observed by using optical fibre spectrometric and polarization imaging system in near infrared waveband. The profiles of the coronal emission lines ... During the 2008 total solar eclipse, the coronal emission lines were observed by using optical fibre spectrometric and polarization imaging system in near infrared waveband. The profiles of the coronal emission lines including Fe XIII 10747 , 10798  and He I 10830  were obtained with dispersion of 0.5 /pix. The intensity of Fe XIII 10747  remained unchanged in the two different coronal regions while the intensity of He I 10830  varied considerably in the two coronal locations no matter whether the prominence appeared or not. The coronal polarization images were observed at Fe XI 7892  with a bandpass of 30  in a series of exposure times. 展开更多
关键词 solar corona TOTAL solar ECLIPSE coronaL emission line POLARIZATION near infrared
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日全食时的日冕光学观测 被引量:5
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作者 胡中为 赵海斌 姚进生 《科学通报》 CAS CSCD 北大核心 2009年第13期1841-1849,共9页
日冕是太阳的外层大气,不仅其高速外流的高温等离子体形成太阳风,而且还常发生强烈的日冕物质抛射(CME),发射很强的紫外和X射线,日冕活动严重地影响日地空间环境和太空天气以及地球,观测研究日冕的结构和活动有重要的科学意义和应用价值... 日冕是太阳的外层大气,不仅其高速外流的高温等离子体形成太阳风,而且还常发生强烈的日冕物质抛射(CME),发射很强的紫外和X射线,日冕活动严重地影响日地空间环境和太空天气以及地球,观测研究日冕的结构和活动有重要的科学意义和应用价值.日冕的光学亮度只有日轮光球的百万分之几,日全食是观测日冕的最有利时机.本文综合评述日冕的各种形态特征和结构性质、活动规律及其观测研究进展,有助于在2009年及以后的日全食时更好地拟定观测方案,以便获得有成效的科学观测资料,促进有关课题的深入研究. 展开更多
关键词 日全食 日冕 形态和结构 太阳活动 CCD天文 图像处理
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太阳极紫外光谱探测的历史与展望 被引量:2
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作者 白先勇 田晖 +7 位作者 邓元勇 陈亚杰 侯振永 杨子浩 张志勇 段帷 李文显 郭思璠 《空间科学学报》 CAS CSCD 北大核心 2023年第3期406-422,共17页
围绕国际一流科学目标,发展顶级探测设备是中国太阳物理位列国际先进行列的立足点。70多年的空间太阳探测历程中,极紫外波段探测发挥了极其重要的作用,极紫外观测设备也几乎成为了太阳探测卫星的必备载荷之一。中国在极紫外探测,尤其是... 围绕国际一流科学目标,发展顶级探测设备是中国太阳物理位列国际先进行列的立足点。70多年的空间太阳探测历程中,极紫外波段探测发挥了极其重要的作用,极紫外观测设备也几乎成为了太阳探测卫星的必备载荷之一。中国在极紫外探测,尤其是光谱探测方面的基础非常薄弱,导致相关科学研究几乎全部依赖国外数据,从而严重制约了中国太阳物理学科的发展。本文根据太阳极紫外探测的特点,系统分析了国外光谱探测的历史、现状以及未来发展趋势,并归纳了三类主要探测方式,即全日面积分光谱探测、低速光谱成像探测、快速光谱成像探测的当前水平,包括其技术方案及取得的部分科学成果。在此基础上,提出中国太阳极紫外光谱探测“三步走”的发展思路,并对每一步的科学目标、指标需求和候选探测方案提出建议。同时,展望了在太阳极紫外成像探测方面开展创新性尝试的思路。 展开更多
关键词 太阳 日冕 极紫外 空间探测 光谱仪
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关于常α线性无力场的边界积分表示公式 被引量:3
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作者 李柱恒 颜毅华 宋国乡 《工程数学学报》 CSCD 北大核心 2006年第1期45-51,共7页
本文基于颜毅华所给太阳磁场的边界积分表示式,提出了一个新的直接边界积分公式,该公式仅仅由边界上的已知磁场值确定空间点的磁场值,且用新的公式计算磁场具有计算速度快、精度高的显著优点。此外,我们还对颜所提模型的渐近性条件进行... 本文基于颜毅华所给太阳磁场的边界积分表示式,提出了一个新的直接边界积分公式,该公式仅仅由边界上的已知磁场值确定空间点的磁场值,且用新的公式计算磁场具有计算速度快、精度高的显著优点。此外,我们还对颜所提模型的渐近性条件进行了探讨,以例予说明该模型的渐近性条件仅是充分的。 展开更多
关键词 太阳磁场 太阳日冕 太阳耀斑 太阳活动
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Solar System. Angular Momentum. Dark Matter Reactors 被引量:2
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作者 Vladimir S. Netchitailo 《Journal of High Energy Physics, Gravitation and Cosmology》 2021年第4期1353-1372,共20页
The developed Hypersphere World-Universe Model (WUM) is consistent with all Concepts of the World [1]. In WUM, we postulate the principal role of Angular Momentum and Dark Matter in Cosmological theories of the World.... The developed Hypersphere World-Universe Model (WUM) is consistent with all Concepts of the World [1]. In WUM, we postulate the principal role of Angular Momentum and Dark Matter in Cosmological theories of the World. The most widely accepted model of Solar System formation, known as the Nebular hypothesis, does not solve the Angular Momentum problem—why is the orbital momentum of Jupiter larger than rotational momentum of the Sun? WUM is the only cosmological model in existence that is consistent with this Fundamental Law. The Nebular hypothesis does not solve Internal Heating and Diversity problems for all Planets and Moons in Solar system—why the actual mean surface temperature of them is higher than their effective temperature calculated based on the Sun’s heat for them and how could each one be so different if all of them came from the same nebula? The proposed concept of Dark Matter Reactors in Cores of all gravitationally-rounded Macroobjects successfully resolves these problems. 展开更多
关键词 Hypersphere World-Universe Model Medium of the World Dark Matter Particles Macroobjects Structure Rotational Fission Law of Conservation of Angular Momentum Dark Epoch Light Epoch solar corona solar Wind Dark Matter Reactor
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A method of forced extrapolation of the global magnetic field in the solar corona 被引量:3
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作者 WANG Bing CHEN Yao +4 位作者 HU Qiang JIANG ChaoWei SONG HongQiang WU Zhao NING Hao 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2020年第2期234-242,共9页
We present a method of forced-field(i.e., non-force-free field: NFFF) extrapolation of the global magnetic field in the corona, on the basis of single-layer vector magnetogram, by extending an extrapolation technique ... We present a method of forced-field(i.e., non-force-free field: NFFF) extrapolation of the global magnetic field in the corona, on the basis of single-layer vector magnetogram, by extending an extrapolation technique of local magnetic field first developed by Hu et al.(2008). The forced coronal magnetic field is described by a system with the minimum dissipation rate(MDR) which is appropriate for the corona as a forced and open system. The obtained solution of the magnetic field can be decomposed into three components including one potential field and two linear force-free fields(LFFF). Starting from the given single-layer vector magnetogram, the bottom boundary condition for each component is determined with an iterative method to achieve a minimum difference of the transverse component between the extrapolated field and the original magnetogram. The final extrapolated forced field is given by the sum of the three component fields with the obtained bottom boundaries. The method is tested with an analytic magnetohydrostatic(MHS) solution. It is shown that the extrapolated forced field is highly consistent with the MHS solution at least from the solar disk to the heliocentric distance of 1.5 solar radii(R⊙). For instance, the complements of normalized and mean vector errors(E’n, E’m) are as high as ~97% and 95%, respectively. Further comparisons between magnetic strength, force and field line distributions indicate that the MHS solution has been successfully reconstructed. 展开更多
关键词 solar corona MAGNETIC FIELD FORCED EXTRAPOLATION
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Redshift Anomaly on the Solar Disk as Multiple Interactions between Photons and Electrons 被引量:3
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作者 Alessandro Trinchera 《Journal of High Energy Physics, Gravitation and Cosmology》 2021年第1期1-51,共51页
This paper analyses the center-to-limb problem of the Sun encountered in the solar lines by using for the first time the New Tired Light theory based on photons of light losing energy due to interaction with electrons... This paper analyses the center-to-limb problem of the Sun encountered in the solar lines by using for the first time the New Tired Light theory based on photons of light losing energy due to interaction with electrons. For this scope, a detailed geometrical orbital model on the scale was created in order to trace back all physical characteristics of the Earth orbiting the Sun for three days in the year 1946, when the redshift measurements were taken. This paper suggests that, since the space between the Sun and the Earth consists of a high exponential distribution of electrons, it works out as a medium for the photons of light. Indeed, in the line of sight of a terrestrial observer, the distance between the Sun and the Earth is greater at the limb than in the center, valid for each orbital position. Accordingly, the interactions between photons and electrons cause a slight difference in redshift along the entire solar disk, matching the observational data. An important factor is the definition of objective criteria for the radial velocity component of the solar granules, whose variable values refer, in turn, to existing observational data, crucial for the success of the study. The redshift anomaly on the solar disk has been repeatedly detected in many scientific researches but only a few attempts so far, mostly based on parametrized models, have been done to give a reliable explanation to the measurements. 展开更多
关键词 Redshift Anomaly Center-to-Limb Problem solar corona New Tired Light
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The coronal magnetic field reversal observed by the SOLARC instrument 被引量:3
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作者 LIU Yu SHEN YuanDeng 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2009年第11期1696-1701,共6页
High-sensitivity measurements for mapping coronal magnetic field have become possible since the recent development of infrared detection techniques. One urgent task that arises from the routine infrared observations i... High-sensitivity measurements for mapping coronal magnetic field have become possible since the recent development of infrared detection techniques. One urgent task that arises from the routine infrared observations is to interpret what the Stokes signals could indicate for coronal magnetic fields. It is the first time for us to successfully reveal the coronal field structure above a simple and stable sunspot on the photosphere using profiles of full Stokes parameters. In this paper, the author further points out the deficiency in any conclusions/judgements just based on incomplete polarization data. A magnetic flux reversal feature, observed from circular polarization data, may correspond to one or more coronal tubes with their front or farside arching apex there, more complicated than people imagined before. To exactly locate the infrared radiation sources, we need both circular and linear polarization data for an integrated analysis of them. 展开更多
关键词 solar corona magnetic field infrared WAVELENGTH EXTRAPOLATION
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太阳爆发:源动力之谜 被引量:1
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作者 苏杨 甘为群 《物理》 CAS 北大核心 2014年第1期2-11,共10页
看似宁静的太阳上存在着诸多活动现象,其中的爆发活动,包括耀斑(solar flares)和日冕物质抛射(CMEs),是太阳系内最剧烈的能量释放,也是造成空间环境和空间天气变化的最主要因素。磁场重联一直被认为是其背后的驱动力,然而确凿的证据一... 看似宁静的太阳上存在着诸多活动现象,其中的爆发活动,包括耀斑(solar flares)和日冕物质抛射(CMEs),是太阳系内最剧烈的能量释放,也是造成空间环境和空间天气变化的最主要因素。磁场重联一直被认为是其背后的驱动力,然而确凿的证据一直没有找到。现在,新一代观测卫星太阳动力学天文台(SDO)终于记录到了完整可信的日冕重联过程。文章中我们简要回顾太阳爆发的研究历史,介绍最新的研究成果,并讨论将来的研究重点。 展开更多
关键词 太阳活动 日冕 太阳耀斑 日冕物质抛射 磁场重联 太阳UV辐射 太阳X射线 太阳γ射线辐射
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Observations of the solar corona during the total solar eclipse on 21 August 2017
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作者 Hui Tian ZhongQuan Qu +15 位作者 YaJie Chen LinHua Deng ZhengHua Huang Hao Li Yue Zhong Yu Liang JingWen Zhang YiGong Zhang BaoLi Lun XiangMing Cheng XiaoLi Yan ZhiKe Xue YuXin Xin ZhiMing Song YingJie Zhu Tanmoy Samanta 《Earth and Planetary Physics》 2017年第1期68-71,共4页
The Sun’s tenuous outer atmosphere,the corona,emits only about one-millionth as much light as the solar surface.In ancient times the corona was observed by human beings only during total solar eclipses,when the stron... The Sun’s tenuous outer atmosphere,the corona,emits only about one-millionth as much light as the solar surface.In ancient times the corona was observed by human beings only during total solar eclipses,when the strong emission of visible light from the photosphere was completely blocked by the Moon.In 1931, 展开更多
关键词 solar corona solar eclipse solar magnetic fields coronal heating
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电场驱动的日冕数值模拟中时变边界条件研究
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作者 吕佳锟 柳晓静 向长青 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2023年第10期4009-4025,共17页
时变边界条件的处理对于数据驱动的日冕太阳风建模研究十分重要.本文基于特征边界条件,将松弛型无反射边界处理应用到三维磁流体力学(Magnetohydrodynamics,MHD)方程中,发展出一种自洽的、以切向电场作为数据驱动的时变边界条件,并将其... 时变边界条件的处理对于数据驱动的日冕太阳风建模研究十分重要.本文基于特征边界条件,将松弛型无反射边界处理应用到三维磁流体力学(Magnetohydrodynamics,MHD)方程中,发展出一种自洽的、以切向电场作为数据驱动的时变边界条件,并将其应用于时变日冕太阳风的模拟中.为验证该时变边界条件的有效性,本文连续模拟研究了2187—2189三个卡林顿周的日冕太阳风结构.通过将模拟结果与SOHO、STEREO等卫星的观测结果进行对比研究,发现基于该时变边界条件的日冕太阳风的模拟可以较好地反映出日冕太阳风的大尺度结构及其演化过程,且模拟得到的太阳风参数与卫星观测结果较为吻合.说明本文所发展的时变边界条件可以有效地模拟数据驱动的时变日冕太阳风. 展开更多
关键词 日冕 磁流体力学 边界条件 电场驱动
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Validation of Novel Model for Identification of Thermal Conditions in the Low Corona 被引量:1
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作者 Daniel B. Berdichevsky Jenny M. Rodríguez Gómez +1 位作者 Luis E. Vieira Alisson Dal Lago 《Advances in Aerospace Science and Technology》 2022年第1期52-84,共33页
The electron density and temperature key properties of the neutral-magnetized plasma in the solar corona, which are predicted with a novel model, provide an interesting window along the whole solar cycle. In this work... The electron density and temperature key properties of the neutral-magnetized plasma in the solar corona, which are predicted with a novel model, provide an interesting window along the whole solar cycle. In this work, we test the quantitative validity of the model and prove that the Coronal Density and Temperature (CODET) is reliable. Furthermore, this work contrasts the CODET model results with alternative observational remote and in-situ datasets during the simplest conditions of the quiescent corona near the solar minimum. This successful outcome/validation of the CODET model allowed a good qualitative density and temperature retrieval in the solar corona covering a large portion of time interval from solar cycles 23 and 24. 展开更多
关键词 solar corona Electron Density TEMPERATURE
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2009年7月22日日全食的日冕结构 被引量:2
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作者 胡中为 张鸿 +1 位作者 关震彪 张津维 《科学通报》 EI CAS CSCD 北大核心 2010年第14期1416-1418,共3页
日冕是太阳的外层大气,其高温等离子体外流而形成太阳风,又发射很强的紫外和X射线辐射,日冕活动严重地影响日地空间环境.日冕结构与太阳活动有密切联系.2009年7月22日发生21世纪最壮观的日全食,是观测研究日冕的良机,但由于全食带地区... 日冕是太阳的外层大气,其高温等离子体外流而形成太阳风,又发射很强的紫外和X射线辐射,日冕活动严重地影响日地空间环境.日冕结构与太阳活动有密切联系.2009年7月22日发生21世纪最壮观的日全食,是观测研究日冕的良机,但由于全食带地区大多阴雨而受挫,幸好在个别天气好的地方可拍摄到高质量的日冕数码像.本文选取其中部分像,进行数字图像处理,结合SOHO卫星LASCOC2所观测的当天的外冕图像进行分析,揭示日冕的一些结构,得到日冕两极和赤道的亮度径向平滑分布.2009年是第24个太阳活动周期的开始年,虽然太阳活动水平仍较低,但比去年的极小期活跃得多,日冕结构有较明显的变化,不仅显示赤道区比两极区延展,即使东西赤道区和南北极区也有较大差别.赤道东侧的冕流,尤其赤道北的大冕流很显著,南极区比北极区的冕羽由更多的极射线组成.日冕赤道区和极区的亮度径向分布接近于去年的太阳活动极小,但赤道东西方向的亮度分布差别较去年小,南极与北极方向的差别也较小.这些日冕特征也显示在日冕等亮度图上. 展开更多
关键词 日全食 日冕 冕流 极射线 太阳活动
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日全食——日冕的观测研究 被引量:2
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作者 胡中为 《自然杂志》 北大核心 2009年第5期258-261,F0004,共5页
日全食是观测日冕的最佳机会。壮观的日冕显示复杂的形态结构和活动现象。日冕发射很强的紫外线和X射线,高温物质不断外流而形成"太阳风",还常发生强烈的"日冕物质抛射事件"。日冕活动严重地影响空间环境和太空天气... 日全食是观测日冕的最佳机会。壮观的日冕显示复杂的形态结构和活动现象。日冕发射很强的紫外线和X射线,高温物质不断外流而形成"太阳风",还常发生强烈的"日冕物质抛射事件"。日冕活动严重地影响空间环境和太空天气,因此日冕的观测研究成为对航天和地球有意义的热门领域。 展开更多
关键词 日全食 日冕 形态结构 太阳活动
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“日中乌”辨析 被引量:3
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作者 李维宝 《天文研究与技术》 CSCD 北大核心 2006年第4期414-418,共5页
从观测资料可认证史载“日中乌”是指太阳黑子,而“阳乌载日”则是日全食时的日冕。二者并非神话,而是写实文字。
关键词 天文史 太阳黑子 日冕
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日冕及其观测演示实验 被引量:1
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作者 宋琦 徐路耀 +4 位作者 闫晗 骆怡 许知涯 钟泽 刘维新 《物理实验》 2015年第7期10-13,共4页
搭建了日冕演示实验系统,通过模拟STEREO双子卫星围绕太阳轨道观测日冕的工作模式,可直观演示太阳表面的常见日冕结构、外掩式日冕仪遮挡光球观测的原理,以及由双星观测结果进行日冕三维重建的方法.讨论了将该演示实验系统用于太阳物理... 搭建了日冕演示实验系统,通过模拟STEREO双子卫星围绕太阳轨道观测日冕的工作模式,可直观演示太阳表面的常见日冕结构、外掩式日冕仪遮挡光球观测的原理,以及由双星观测结果进行日冕三维重建的方法.讨论了将该演示实验系统用于太阳物理和空间探测技术课程教学的意义和实验方法. 展开更多
关键词 日冕 日冕仪 三维重建 STEREO双子卫星
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Thermodynamic Interpretation of Electron Density and Temperature Description in the Solar Corona
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作者 Daniel B. Berdichevsky Jenny M. Rodríguez Gómez 《Advances in Aerospace Science and Technology》 2022年第3期146-174,共29页
We reach a thermodynamic interpretation of the CODET model and its accurate electron density and temperature prediction, grounded on the physics of hydro magnetism in global equilibrium. The thermodynamic interpretati... We reach a thermodynamic interpretation of the CODET model and its accurate electron density and temperature prediction, grounded on the physics of hydro magnetism in global equilibrium. The thermodynamic interpretation finds consistency with the model of a magneto-matter medium possessing a 3-D Langmuir structure. That medium is diamagnetic in the context of ideal magnetohydrodynamic (MHD). It is shown that this magneto-matter has unusual characteristics consistent with assuming that the low quiescent solar corona possesses a nature-state, non yet studied. It is further noticed that this is wholly consistent with the CODET model prediction of a polytropic anomalous index for the electron gas of the Sun’s corona. Constitutive properties are derived from this novel state of nature, like magnetic permeability properties and non-dispersive acoustic speed. This non-dispersive acoustic speed is also expected to predict the observed equilibration time for the 1.1 to 1.3R<sub>⊙</sub> quiescent corona during the solar minimum from 2008 to 2009. 展开更多
关键词 solar corona Density Temperature and Polytropic Anomalous Index
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