Solar System Research最新文献_第7页

Gaia Data Release 3: Distribution of Spectral Groups of Near-Earth Asteroids 盖亚数据第 3 版：近地小行星光谱组的分布

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S0038094624700205

M. P. Shcherbina, D. A. Kovaleva, B. M. Shustov

引用次数: 0

One-Dimensional Model of Vertical Transport of Chemical Components in the Mars Atmosphere up to the Lower Thermosphere 火星大气层中化学成分垂直迁移至低热层的一维模型

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S0038094623700041

Y. Kylivnyk, A. S. Petrosyan, A. A. Fedorova, O. I. Korablev

引用次数: 0

On the Influence of the Rayleigh–Taylor Instability on the Formation of Dust Clouds in the Mesosphere of Mars 论瑞利-泰勒不稳定性对火星中间层尘云形成的影响

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S0038094624700187

Yu. S. Reznichenko, A. Yu. Dubinskii, S. I. Popel

引用次数: 0

The Influence of the Exosphere of an Active Asteroid on the Polarization of Scattered Light and the Possibility of Estimating Its Properties from Ground-Based Measurements 活动小行星外大气层对散射光极化的影响以及通过地基测量估计其特性的可能性

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S0038094623700016

E. V. Petrova

{"title":"The Influence of the Exosphere of an Active Asteroid on the Polarization of Scattered Light and the Possibility of Estimating Its Properties from Ground-Based Measurements","authors":"E. V. Petrova","doi":"10.1134/S0038094623700016","DOIUrl":"10.1134/S0038094623700016","url":null,"abstract":"Celestial bodies which have orbital and physical characteristics typical of asteroids, but episodically exhibit the signs of cometary activity are of particular interest, because the knowledge of the nature of these bodies is necessary to understand the processes of how the Solar System formed and how water was delivered to the terrestrial planets. In the estimation of the properties of an exosphere of an active asteroid (AA) from remote-sensing data, polarimetry can play a prominent role, since the polarization of scattered light is sensitive to the properties of particles in the medium. Numerical simulations of the light scattering by particles in the exosphere around an AA have shown that, depending on the wavelength of the scattered light, the refractive index of particles, and their morphology, the light scattering in the exosphere may both weaken the polarization of light reflected by the surface and enhance it. At the same time, the spectral gradient of polarization may change both towards larger positive values and towards negative ones. At phase angles less than 30°, which are typical of observations of the Main-belt asteroids, the changes in the polarization induced by scattering in the exosphere are small and vary only slightly for particles of different properties. Nevertheless, if the polarizations of light reflected by an asteroid changes relative to the canonical values, this may indicate the presence of the exosphere. At larger phase angles, the influence of scattering in the exosphere on the polarization of an AA is more noticeable, which makes the use of polarimetry promising for studying activity of near-Earth asteroids. This effect should also be taken into account when estimating the albedo of an asteroid by the polarization maximum (according to the Umov law), if a manifestation of activity in this particular asteroid can be expected.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 2","pages":"196 - 207"},"PeriodicalIF":0.6,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141150669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manifestations of Anomalous Dissipation in Dusty Plasma in the Solar System: Atmosphereless Cosmic Bodies 太阳系尘埃等离子体的异常耗散表现：无大气层宇宙天体

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S003809462370003X

S. I. Popel, L. M. Zelenyi

{"title":"Manifestations of Anomalous Dissipation in Dusty Plasma in the Solar System: Atmosphereless Cosmic Bodies","authors":"S. I. Popel, L. M. Zelenyi","doi":"10.1134/S003809462370003X","DOIUrl":"10.1134/S003809462370003X","url":null,"abstract":"One of the main features that distinguishes dusty plasma from ordinary (not containing charged dust particles) plasma is anomalous dissipation associated with the process of charging dust particles, leading to new physical phenomena, effects and mechanisms. The process of anomalous dissipation is considered in the context of describing the dynamics of dust particles in the dusty plasma of atmosphereless bodies of the Solar System. A description of the oscillations of a dust particle over the surfaces of Mercury, the Moon, and the Martian satellites Phobos and Deimos is presented, the attenuation of which is determined by the charging frequency of the dust particles, which characterizes anomalous dissipation. The possibility of using an approach that takes into account anomalous dissipation to describe plasma-dust processes in the vicinity of comets is discussed. It is shown that anomalous dissipation plays a significant role in determining the possibility of using the model of levitating dust particles in describing dusty plasma over the surfaces of atmosphereless bodies of the Solar System. The results of numerical calculations are presented, confirming the possibility of using this model for a number of atmospherelesso cosmic bodies.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 2","pages":"220 - 239"},"PeriodicalIF":0.6,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141150712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Disturbances in the Rotational Dynamics of Asteroid (99942) Apophis at its Approach to the Earth in 2029 小行星（99942）阿波菲斯在 2029 年接近地球时的旋转动力学干扰

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S0038094623700107

K. S. Lobanova, A. V. Melnikov

{"title":"Disturbances in the Rotational Dynamics of Asteroid (99942) Apophis at its Approach to the Earth in 2029","authors":"K. S. Lobanova, A. V. Melnikov","doi":"10.1134/S0038094623700107","DOIUrl":"10.1134/S0038094623700107","url":null,"abstract":"Using numerical modeling of the rotational dynamics of asteroid (99942) Apophis, the disturbances that occur in the rotational motion of asteroids during their close approaches to the Earth were studied. Such events can lead to significant changes in the speed of the asteroid’s own rotation and the orientation of its rotation axis in space. Assuming that the figure of Apophis is approximated by a triaxial ellipsoid, the dependences of changes in the rotation period of an asteroid on the parameters of the orbit and its rotational state before approaching the Earth were studied. It has been established that the rotation period of Apophis, which is currently about 30 h, may change due to the next approach to Earth in 2029 very significantly—to 10–15 h; in numerical experiments, both acceleration and deceleration of the asteroid’s rotation were observed. Perturbations in the rotational motion of the asteroid noticeably affect its further orbital dynamics as a result of changes in the magnitude of the Yarkovsky effect. It was concluded that as a result of close approach, the average rate of change of the semimajor axis of Apophis’s orbit caused by the Yarkovsky effect, which is currently about 200 m/year, may decrease to 160 m/year or increase to 300 m/year.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 2","pages":"208 - 219"},"PeriodicalIF":0.6,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141150717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Acoustic Wave Phenomena in Radiation Magnetic Hydrodynamics 辐射磁流体力学中的声波现象分析

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S0038094623700077

A. V. Kolesnichenko

{"title":"Analysis of Acoustic Wave Phenomena in Radiation Magnetic Hydrodynamics","authors":"A. V. Kolesnichenko","doi":"10.1134/S0038094623700077","DOIUrl":"10.1134/S0038094623700077","url":null,"abstract":"The propagation of linear acoustic disturbances in an infinite, homogeneous, gray radiating plasma, initially in mechanical and radiation equilibrium, is considered. An exact governing equation for radiation acoustics in a radiating gray gas is derived, taking into account the influence of the transverse magnetic field. Radiation magnetohydrodynamics (MHD) is described by three hydrodynamic equations and two radiative momentum equations, making extensive use of the formalism of radiation thermodynamics. With the aim of more reliably describing the evolution of radiation magnetic–acoustic disturbance waves with scattering and attenuation, the conditions of radiation-thermal dissipation, the force of radiation resistance, as well as magnetic force and Joule heat are introduced into these equations. In this case, the Eddington approximation is used, which allows one to study the modes of radiation magnetohydrodynamic waves in two asymptotic cases—optically thin and thick gas. The exact control equation derived in the work made it possible, using the heuristic Whitham method, to obtain a set of approximate control equations of the lowest order, each of which is part of a reliable approximation to the exact equation in a certain region of the independent time variable. The relatively simple form of such equations made it possible to study the physical processes occurring in each radiation magnetic–acoustic wave without a formal solution to the full problem.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 2","pages":"250 - 262"},"PeriodicalIF":0.6,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141150785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation Experiments on the Deposition of Charged Particles of LMS-1D Regolith on the Solar Panels of Spacecraft LMS-1D 人造岩石带电粒子在航天器太阳板上沉积的模拟实验

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S0038094624700114

A. S. Sokolov, T. E. Gayanova, V. D. Borzosekov, V. D. Stepakhin, A. K. Kozak, E. A. Obraztsova, N. T. Vagapova, I. V. Badurin, E. S. Loginova, N. N. Skvortsova

引用次数: 0

Wind Speed Variations at the Venus Cloud Top above Aphrodite Terra According to Long-term UV Observations by VMC/VENUS Express and UVI/AKATSUKI 根据 VMC/VENUS Express 和 UVI/AKATSUKI 的长期紫外线观测，阿佛洛狄特-泰拉上空金星云顶的风速变化

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-20 DOI: 10.1134/S0038094623700053

M. V. Patsaeva, I. V. Khatuntsev, D. V. Titov, N. I. Ignatiev, L. V. Zasova, D. A. Gorinov, A. V. Turin

{"title":"Wind Speed Variations at the Venus Cloud Top above Aphrodite Terra According to Long-term UV Observations by VMC/VENUS Express and UVI/AKATSUKI","authors":"M. V. Patsaeva, I. V. Khatuntsev, D. V. Titov, N. I. Ignatiev, L. V. Zasova, D. A. Gorinov, A. V. Turin","doi":"10.1134/S0038094623700053","DOIUrl":"10.1134/S0038094623700053","url":null,"abstract":"Series of consecutive UV (365 nm) images of Venus cloud coverage provide a way to investigate dynamics of the mesosphere. An unprecedented series of such images was obtained by the VMC/Venus Express (ESA) and UVI/Akatsuki (JAXA) cameras from 2006 to 2022. At 10°S long-term variations in the mean zonal and meridional wind speed are observed with a period of 12.5 ± 0.5 years. Analysis of the of the mean zonal wind behavior around noon (12 ± 1 h) at phase angles of 60°–90° in limited observation time intervals shows that near the minimum of the long-term dependence the deceleration of the horizontal flow is observed above the highest part of Aphrodite Terra, Ovda Regio, for both VMC and UVI. Conversely, acceleration is observed above the Ovda Regio near the maximum of the long-term dependence. The considered longitudinal variations of the zonal wind speed extend from the equator to middle latitudes (0°–40°). The meridional wind speed shows longitudinal variations associated with the topography of the underlying surface, regardless of whether the horizontal flow is slowing down or accelerating above the highlands of Aphrodite Terra.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 2","pages":"148 - 162"},"PeriodicalIF":0.6,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0038094623700053.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141150797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Hydrogen Concentrations in a Tectonically Deformed Impact Crater in the Area of the South Pole of the Moon 月球南极地区构造变形撞击坑中的氢浓度分析

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-05-04 DOI: 10.1134/S003809462401009X

A. B. Sanin, I. G. Mitrofanov, A. T. Bazilevsky, M. L. Litvak, M. V. D’yachkova

引用次数: 0