Solnechno-Zemnaya Fizika最新文献_第5页

Estimated equivalent radiation dose at different altitudes in Earth’s atmosphere 估计地球大气中不同高度的等效辐射剂量

Solnechno-Zemnaya Fizika Pub Date : 2022-09-30 DOI: 10.12737/szf-83202204

E. Maurchev, E. Mikhalko, Yuriy V. Balabin, A. Germanenko, B. Gvozdevsky

引用次数: 3

Response of ionospheric electron density profile to the action of powerful HF radio-wave radiation 电离层电子密度分布对强高频无线电波辐射的响应

Solnechno-Zemnaya Fizika Pub Date : 2022-09-30 DOI: 10.12737/szf-83202211

Yuliya Legostaeva, A. Shindin, S. Grach

引用次数: 0

Color and spectral characteristics of long-lived meteor trail formed by the Tunka bolide Tunka火流星形成的长寿命流星轨迹的颜色和光谱特征

Solnechno-Zemnaya Fizika Pub Date : 2022-09-30 DOI: 10.12737/szf-83202209

A. Mikhalev

{"title":"Color and spectral characteristics of long-lived meteor trail formed by the Tunka bolide","authors":"A. Mikhalev","doi":"10.12737/szf-83202209","DOIUrl":"https://doi.org/10.12737/szf-83202209","url":null,"abstract":"The paper addresses color characteristics and possible spectral composition of emission of a long-lived (~40 min) meteor trail of uncommon geometry, which was formed due to the bolide passage in the Tunka Valley on November 17, 2017. Analysis of dynamics of RGB channels of the meteor trail colored image shows that during the first ~8 minutes the meteor trail emission might have been contributed by the ionization trail. The ionization trail was formed by particles of the meteor matter neutral and ionized components that were heated to high temperatures on the surface of the main meteoroid and separated from it. We also examine the discussed mechanism of heterogeneous chemical reactions occurring on the surface of meteoric dust (FeS, FeO, etc.) with participation of atoms and molecules of atmospheric gases. The yellowish color of the Tunka bolide meteor trail was assumed to be determined, first of all, by the emission of molecular nitrogen N₂ band within the 570–750 nm spectral range (the first positive system) and/or enhancement of NO*₂ continuum in heterogeneous chemical reactions. The meteor trail emission spectrum should also include relatively bright atomic lines and molecular bands of the meteoric matter and atmospheric gases FeI, MgI, CaI, SiI, NaI, FeO and SO₂, OI, OH, etc.","PeriodicalId":351867,"journal":{"name":"Solnechno-Zemnaya Fizika","volume":"33 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132733856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conditions for arrival of solar energetic protons in Earth after strong solar flares 强太阳耀斑后太阳高能质子到达地球的条件

Solnechno-Zemnaya Fizika Pub Date : 2022-09-30 DOI: 10.12737/szf-83202203

G. Kichigin, M. Kravtsova, V. Sdobnov

引用次数: 0

Kinematic characteristics of stealth CME in three-dimensional space 隐身CME在三维空间的运动特性

Solnechno-Zemnaya Fizika Pub Date : 2022-09-30 DOI: 10.12737/szf-83202202

Y. Egorov, V. Fainshtein

{"title":"Kinematic characteristics of stealth CME in three-dimensional space","authors":"Y. Egorov, V. Fainshtein","doi":"10.12737/szf-83202202","DOIUrl":"https://doi.org/10.12737/szf-83202202","url":null,"abstract":"We have studied and compared kinematic characteristics of the motion of coronal mass ejections (CMEs) in three-dimensional (3D) space for three groups of CMEs for the period 2008–2014. These CME groups include: (i) stealth CMEs, (ii) CMEs that originate on the visible side of the Sun (for an observer on Earth) and are associated with X-ray flares and filament eruption, (iii) all CMEs registered during the given period. Stealth CMEs are CMEs that emerge on the visible side of the Sun and are unrelated to X-ray flares, as well as to filament eruption. We compare kinematic and some physical characteristics of these CMEs with those of a separate group of CMEs, classified as stealth in [D’Huys et al., 2014]. After comparing the characteristics of the three CME groups (i)–(iii), we concluded that stealth CMEs have, on average, the lowest velocity, kinetic energy, mass and angular size, central position angle, and also the angle φ between the direction of CME motion in the ecliptic plane and the Sun–Earth line and the angle λ between the direction of CME motion in 3D space and the ecliptic plane. We also discuss distributions of CMEs of different types by kinematic characteristics.","PeriodicalId":351867,"journal":{"name":"Solnechno-Zemnaya Fizika","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114438017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synchronous globally observable ultrashort-period pulses 同步全球可观测的超短周期脉冲

Solnechno-Zemnaya Fizika Pub Date : 2022-06-30 DOI: 10.12737/szf-82202207

R. Marchuk, A. Potapov, V. Mishin

{"title":"Synchronous globally observable ultrashort-period pulses","authors":"R. Marchuk, A. Potapov, V. Mishin","doi":"10.12737/szf-82202207","DOIUrl":"https://doi.org/10.12737/szf-82202207","url":null,"abstract":"We have studied the properties of impulsive geomagnetic disturbances, which are observed synchronously at the network of induction magnetometers of the Institute of Solar-Terrestrial Physics (ISTP SB RAS) and Canadian stations of the CARISMA project [Mann, et al., 2008]. A feature of the pulses we detected is that their frequency range (f~5–30 Hz) lies at the junction of the ranges of two known classes of electromagnetic oscillations: ultra-low-frequency (ULF) oscillations (f<5–10 Hz), or geomagnetic pulsations, and extra-low frequency (ELF) oscillations (f~30–300 Hz); therefore, the 5–30 Hz range is poorly studied. The work is of undoubted interest for physics of processes in the magnetosphere–ionosphere–atmosphere system. Morphological analysis of the pulses detected has been carried out using data from ISTP stations. As a result, we obtained statistical characteristics of the pulses, plotted their dynamic spectra, and determined a number of unusual properties that distinguish them, on the one hand, from geomagnetic pulsations of the pulsed type (irregular pulsations of the Pi1B type), and, on the other hand, from higher frequency ELF and VLF signals (atmospherics, whistlers, etc.). On the basis of the results, we have made an assumption that a source of the pulses under study can be electrical sprites caused by powerful thunderstorms at middle and low latitudes. Using the results obtained by Wang, et al. in 2019 on spatial and temporal fixation of sprites in North China, we have confirmed that ultra-short-period pulses occur following the emergence of sprites. Thunderstorm activity, both local and global, is considered to be one of the main sources of excitation of the ionospheric Alfvén resonator (IAR), which plays an important role in coupling the ionosphere and the magnetosphere. The pulsed oscillations of interest may be one of the agents through which the energy of thunderstorms is transferred to IAR, thereby including the atmosphere in the system considered.","PeriodicalId":351867,"journal":{"name":"Solnechno-Zemnaya Fizika","volume":"35 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125725355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Turbulent parameters at different heights in the atmosphere. Shack–Hartmann wavefront sensor data 大气中不同高度的湍流参数。沙克-哈特曼波前传感器数据

Solnechno-Zemnaya Fizika Pub Date : 2022-06-30 DOI: 10.12737/szf-82202203

A. Shikhovtsev, A. Kiselev, P. Kovadlo, D. Kolobov, Ivan Russkikh, Vitaliy Tomin

引用次数: 0

Second-order perturbations in Alfvén waves in finite pressure plasma 有限压力等离子体中alfvsamn波的二阶扰动

Solnechno-Zemnaya Fizika Pub Date : 2022-06-30 DOI: 10.12737/szf-82202205

I. Dmitrienko

引用次数: 0

Correspondence of a global isolated substorm to the McPherron statistical model 全球孤立次暴与mcphron统计模型的对应关系

Solnechno-Zemnaya Fizika Pub Date : 2022-06-30 DOI: 10.12737/szf-82202206

V. Parhomov, V. Eselevich, M. Eselevich, B. Tsegmed, S. Khomutov, R. Tero, Georgiy Popov, A. Mochalov, S. Pilgaev, R. Rakhmatulin

{"title":"Correspondence of a global isolated substorm to the McPherron statistical model","authors":"V. Parhomov, V. Eselevich, M. Eselevich, B. Tsegmed, S. Khomutov, R. Tero, Georgiy Popov, A. Mochalov, S. Pilgaev, R. Rakhmatulin","doi":"10.12737/szf-82202206","DOIUrl":"https://doi.org/10.12737/szf-82202206","url":null,"abstract":"It is shown that a diamagnetic structure (DS) of the slow solar wind (SW), the source of which on the Sun was a chain of streamers, arrived at Earth’s orbit on December 22, 2015. It interacted with Earth’s magnetosphere under conditions when the northward Bz component of the interplanetary magnetic field (IMF) remained for a long time in preceding undisturbed SW. The interaction and a sharp change in the direction of Bz to the south generated an isolated substorm whose duration depends on the duration of interaction with the DS. The substorm began at midday with the passage of the DS into the magnetosphere and spread to the east. All phases of the substorm — growth, expansion, and recovery — were observed for two hours. Variations in the SW and IMF parameters are shown to coincide for the isolated substorm whose energy source was the slow solar wind DS, and a trigger was the abrupt change in the direction of the vertical IMF component from north to south. The coincidence is justified by statistical generalizations of the same parameters in 40 % of cases of long-term observations of individual substorms whose trigger was a change in Bz direction.","PeriodicalId":351867,"journal":{"name":"Solnechno-Zemnaya Fizika","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115956868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Diagnostics of emission intensities and electron density in auroras based on empirical precipitation models 基于经验降水模式的极光发射强度和电子密度诊断

Solnechno-Zemnaya Fizika Pub Date : 2022-06-30 DOI: 10.12737/szf-82202208

Zhanna Dashkevich, Vladimir Ivanov

引用次数: 0