Solar System Research最新文献_第7页

Influence of Mantle Inelasticity on the Model Value of the Chandler Wobble Period of Mars 地幔非弹性对火星钱德勒摆动周期模型值的影响

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-08-01 DOI: 10.1134/S0038094624700497

E. A. Kulik, T. V. Gudkova

引用次数: 0

Subsurface Water Ice Content in the Cabeus Crater According to Measurements by the LEND Instrument onboard the NASA LRO Orbital Mission 根据美国国家航空航天局 LRO 轨道飞行任务所搭载的 LEND 仪器测量的卡贝乌斯环形山地表下水冰含量

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-08-01 DOI: 10.1134/S003809462470045X

M. L. Litvak, I. G. Mitrofanov, A. B. Sanin, M. V. Dyachkova

{"title":"Subsurface Water Ice Content in the Cabeus Crater According to Measurements by the LEND Instrument onboard the NASA LRO Orbital Mission","authors":"M. L. Litvak, I. G. Mitrofanov, A. B. Sanin, M. V. Dyachkova","doi":"10.1134/S003809462470045X","DOIUrl":"10.1134/S003809462470045X","url":null,"abstract":"The article presents the results of the analysis of data from the Russian neutron spectrometer LEND (Lunar Exploration Neutron Detector), installed aboard NASA’s lunar orbiter LRO (Lunar Reconnaissance Orbiter). An estimate of the content of subsurface water ice in the permanently shadowed region Cabeus-1, located inside the large Cabeus crater in the vicinity of the lunar south pole, has been obtained. The analysis used observations made with the LEND instrument from 2009 to 2023. It is shown that the surface neutron albedo in the vicinity and inside of Cabeus-1 correlates with the relief height and the distribution of average annual temperatures. The average subsurface water ice content over the entire Cabeus-1 region was estimated to be 0.49 ± 0.05% by mass fraction. The maximum value of about 0.7% is observed at the very bottom of the crater on the surface area where the minimum average annual temperature was recorded. This site coincides with the site of the LCROSS (Lunar Crater Observation and Sensing Satellite) impact experiment, which confirmed a significant amount of water ice in the near-surface material of the Moon.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 6","pages":"629 - 639"},"PeriodicalIF":0.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141881282","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

Change in Plasma Composition During the Rotation of the Magnetopause of Mars 火星磁极旋转过程中等离子体成分的变化

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-07-12 DOI: 10.1134/S0038094624700254

O. L. Vaisberg, A. Yu. Shestakov, R. N. Zhuravlev, D. N. Morozova, A. Ramazan

{"title":"Change in Plasma Composition During the Rotation of the Magnetopause of Mars","authors":"O. L. Vaisberg, A. Yu. Shestakov, R. N. Zhuravlev, D. N. Morozova, A. Ramazan","doi":"10.1134/S0038094624700254","DOIUrl":"10.1134/S0038094624700254","url":null,"abstract":"High temporal resolution of measurements of the magnetic field and plasma of Mars is provided by observations on the Mars Atmosphere and Volatile Evolution (MAVEN; Jakosky et al., 2015) satellite, making it possible to analyze thin layers of the plasma envelope of Mars. This paper describes the magnetic structure associated with the daytime Martian magnetopause. It was shown that the solar wind passing through the shock wave on the dayside of Mars does not directly interact with the Martian ionosphere. A layer of plasma and magnetic field 200–300 km thick forms the daytime magnetosphere, which is the region between the magnetosheath and the ionosphere (Vaisberg and Shuvalov, 2020). There are two types of daytime magnetosphere: (1) the more common type of magnetosphere consists of heated and accelerated O+ ions and ({text{O}}_{2}^{ + }), located between the ionosphere and the flowing hot stream of Mars; (2) another type of daytime magnetosphere consists of accelerated O+ ions and ({text{O}}_{2}^{ + }) in the magnetosheath, where they form a continuing accelerated beam, forming a plume. Between the magnetosheath and the magnetosphere there is a magnetic structure that rotates, almost without changing its size. This structure is located in the second part of the np/(np + nh) transition from ~1 to ~10–2. The transition between the magnetosheath and magnetosphere occurs smoothly, both in energy density and in ion composition, with a decrease in the proton flux and an increase in the heavy ion flux.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 4","pages":"409 - 418"},"PeriodicalIF":0.6,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612742","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

Natural Alloys of the Cu–Ni System from Impactites of the Lonar Crater (India) and Lunar Regolith 印度隆纳尔陨石坑撞击岩和月球岩石中的铜镍系天然合金

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-07-12 DOI: 10.1134/S0038094624700266

T. A. Gornostaeva, P. M. Kartashov, A. V. Mokhov, A. P. Rybchuk, A. T. Basilevsky

引用次数: 0

The Generation of O2 and CO by CO2 Glow Discharge for In-Situ Martian Atmospheric Utilization 利用二氧化碳辉光放电生成 O2 和 CO 以在火星大气中就地利用

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-07-12 DOI: 10.1134/S0038094624700333

Maocheng Qian, Fabao Yan, Pengyan Zhang, Bo Li, Zhongchen Wu

{"title":"The Generation of O2 and CO by CO2 Glow Discharge for In-Situ Martian Atmospheric Utilization","authors":"Maocheng Qian, Fabao Yan, Pengyan Zhang, Bo Li, Zhongchen Wu","doi":"10.1134/S0038094624700333","DOIUrl":"10.1134/S0038094624700333","url":null,"abstract":"Mars has nearly ideal conditions for CO2 dissociation by glow discharge plasmas. The directly generation of O2 and CO on Mars was considered to be feasible and practical for in situ resource utilization of Martian atmosphere to get respirable O2 and fuel. In this paper, we conduct several experiments under simulated Martian conditions to investigate the process and how the key parameters effect the generation of O2 and CO in CO2 glow discharge reactions. The yields of new products (i.e., O2 and CO) under various gas discharge work parameters (i.e., discharge power, frequency, voltage, gap between the discharge plane electrodes and gas pressure) were systematically investigated. The reaction mechanism and reaction path of CO2 glow discharge has been discussed. In our study the max yield of O2 by CO2 discharge dissociation was got about 21.8 g/h at 168 W which is very close to that of NASA MOXIE (Mars Oxygen In-Situ Resource Utilization Experiment) at the same power. Our results showed the great potentiality of glow discharge for the practicable technology of O2 and CO generation for in-situ resource utilization on Mars.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 4","pages":"419 - 426"},"PeriodicalIF":0.6,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612740","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

Surface Thermal Inertia of Near-Earth Asteroid (469219) Kamo`oalewa: Statistical Estimation and Implications 近地小行星 (469219) Kamo`oalewa 的表面热惯性：统计估计和影响

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-07-12 DOI: 10.1134/S0038094624700321

Lu Liu, Qiao Chen, Jianguo Yan, Liangliang Yu, Marco Fenucci, Mao Ye, Zhen Zhong, Denggao Qiu, Jean-Pierre Barriot

{"title":"Surface Thermal Inertia of Near-Earth Asteroid (469219) Kamo`oalewa: Statistical Estimation and Implications","authors":"Lu Liu, Qiao Chen, Jianguo Yan, Liangliang Yu, Marco Fenucci, Mao Ye, Zhen Zhong, Denggao Qiu, Jean-Pierre Barriot","doi":"10.1134/S0038094624700321","DOIUrl":"10.1134/S0038094624700321","url":null,"abstract":"The Chinese small body exploration mission Tianwen-2 is aimed at sampling the near-Earth, fast-rotating asteroid (469219) Kamo`oalewa and returning the samples to Earth. Characterisation of the currently unknown physical properties of Kamo`oalewa in the pre-mission phase would support mission implementation. In this study, we preliminarily estimate the surface thermal inertia of Kamo`oalewa using a statistical method, based on the Yarkovsky-related orbital drift of (–6.155 ± 1.758) × 10-3 au/Myr for Kamo`oalewa obtained in our previous work. A reasonable estimate of the surface thermal inertia obtained is (402.05_{{ - 194.37}}^{{ + 376.29}}) J K–1 m–2 s–1/2. This low value suggests the presence of coarse regolith on the surface of Kamo`oalewa or its nature as a porous rock. The regolith potentially present on the surface of Kamo`oalewa may have millimetre- to decimetre-sized grains with cohesive strengths varying from ~0.76 to ~0.045 Pa. If Kamo`oalewa is a porous rock, its porosity is expected to range from ~20 to 50%, corresponding to tensile strengths of ~1.3 to 11.5 MPa. This study provides preliminary insights into the surface thermal inertia of Kamo`oalewa from a statistical viewpoint, which may facilitate the Tianwen-2 mission.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 4","pages":"469 - 479"},"PeriodicalIF":0.6,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612743","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

Study of Migration of Giant Planets and Formation of Populations of Distant Trans-Neptunian Objects in the Nice Model 尼斯模型中巨型行星的迁移和远距离外海王星天体群的形成研究

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-07-12 DOI: 10.1134/S0038094624700278

V. V. Emel’yanenko

引用次数: 0

Calculation of the Non-Gravitational A2 Parameter Using Ground-Based Observations of the Apparent Close Approaches between Near-Earth Asteroids and Gaia Stars 利用近地小行星与盖亚星之间的近距离观测数据计算非引力 A2 参数

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-07-12 DOI: 10.1134/S003809462470031X

M. Yu. Khovrichev, D. A. Bikulova, D. L. Gorshanov

{"title":"Calculation of the Non-Gravitational A2 Parameter Using Ground-Based Observations of the Apparent Close Approaches between Near-Earth Asteroids and Gaia Stars","authors":"M. Yu. Khovrichev, D. A. Bikulova, D. L. Gorshanov","doi":"10.1134/S003809462470031X","DOIUrl":"10.1134/S003809462470031X","url":null,"abstract":"The Yarkovsky effect is one of the noticeable factors in the orbital evolution of near-Earth asteroids (NEAs). The A2 non-gravitational parameter describes the corresponding acceleration in the NEA motion model. This parameter can be derived from astrometric observations of the NEA. We present the results of astrometric observations of two NEAs (2010 XC15 and 2014 HK129). The measurements were performed with the MTM-500M telescope (Mountain Astronomical Station of the Pulkovo Observatory). The modified Gaia star apparent approach technique was applied. As a result, the astrometric accuracy of our observations reached the 0.05 arcsec level. It allowed us to estimate the A2 values of the 2010 XC15 asteroid: –139.5 × 10–15 ± 20.2 × 10–15 au/d2. It is in good agreement with the NASA JPL estimate for this asteroid. The 2014 HK129 A2 parameter formal value extracted from our data is 61.3 × 10–15 ± 1583.4 × 10–15 au/d2. Introduction of this A2 value into the asteroid motion model provides a significant decrease (about 0.05–0.1 arcsec) of the (O–C) values for the first epoch of 2014 HK129 observations. It can be considered as faint evidence of the reality of Yarkovsky drift for the 2014 HK129 asteroid.","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 4","pages":"487 - 493"},"PeriodicalIF":0.6,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612868","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

Map of the Circumpolar Regions of the Moon from Latitudes +/–55° 纬度 +/-55° 的月球环极区地图

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-07-12 DOI: 10.1134/S0038094624700345

E. A. Grishakina, Zh. F. Rodionova, E. A. Feoktistova, E. N. Slyuta, V. V. Shevchenko

引用次数: 0

Determination of Dynamic Parameters of a Group of Space Debris Objects in Geostationary Area According to Positional and Photometric Measurements 根据定位和光度测量确定地球静止轨道区域一组空间碎片物体的动态参数

IF 0.6 4区物理与天体物理

Solar System Research Pub Date : 2024-07-12 DOI: 10.1134/S0038094624700242

T. V. Bordovitsyna, N. S. Bakhtigaraev, P. A. Levkina, N. A. Popandopulo, K. V. Saleiko, I. V. Tomilova, O. S. Novikova

引用次数: 0