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相关论文: Automated identification of current sheets -- a ne…

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We present the analysis of 2,033 current sheets (CS) observed aboard four Cluster spacecraft in a pristine solar wind. Four-spacecraft estimates of the CS normal and propagation velocity are compared with different single-spacecraft…

空间物理 · 物理学 2023-12-12 Rachel Wang , Ivan Y. Vasko , Tai Phan , Forrest Mozer

A statistical relationship between magnetic reconnection, current sheets and intermittent turbulence in the solar wind is reported for the first time using in-situ measurements from the Wind spacecraft at 1 AU. We identify intermittency as…

空间物理 · 物理学 2015-06-19 K. T. Osman , W. H. Matthaeus , J. T. Gosling , A. Greco , S. Servidio , B. Hnat , S. C. Chapman , T. D. Phan

Analysis of the Interball-1 spacecraft data (1995-2000) has shown that the solar wind ion flux sometimes increases or decreases abruptly by more than 20% over a time period of several seconds or minutes. Typically, the amplitude of such…

空间物理 · 物理学 2011-02-08 Olga Khabarova , Georgy Zastenker

Kinetic-scale current sheets observed in the solar wind are frequently approximately force-free despite the fact that their plasma $\beta$ is of the order of one. In-situ measurements have recently shown that plasma density and temperature…

空间物理 · 物理学 2020-03-18 T. Neukirch , I. Y. Vasko , A. V. Artemyev , O. Allanson

The properties of current sheets forming in a ion-kinetically turbulent collisionless plasma are investigated by utilizing the results of two-dimensional hybrid-kinetic numerical simulations. For this sake the algorithm proposed by Zhdankin…

等离子体物理 · 物理学 2024-06-19 Amirhassan Chatraee Azizabadi , Neeraj Jain , Jörg Büchner

Interplanetary coronal mass ejections (ICMEs) are one of the main drivers for space weather disturbances. In the past, different approaches have been used to automatically detect events in existing time series resulting from solar wind in…

We present statistical analysis of 11,200 proton kinetic-scale current sheets (CS) observed by Parker Solar Probe during 10 days around the first perihelion. The CS thickness $\lambda$ is in the range from a few to 200 km with the typical…

太阳与恒星天体物理 · 物理学 2022-04-20 A. Lotekar , I. Y. Vasko , T. Phan , S. D. Bale , T. A. Bowen , J. Halekas , A. V. Artemyev , Yu. Khotyaintsev , F. S. Mozer

Current sheets (CSs) are preferred sites of magnetic reconnection and energy dissipation in collisionless astrophysical plasmas. Electric currents in them may be carried by both electrons and ions. In our prior theoretical studies of…

太阳与恒星天体物理 · 物理学 2022-07-20 Olga Khabarova , Jörg Büchner , Neeraj Jain , Timothy Sagitov , Helmi Malova , Roman Kislov

The solar interior is filled with turbulent thermal convection, which plays a key role in the energy and momentum transport and the generation of the magnetic field. The turbulent flows in the solar interior cannot be optically detected due…

太阳与恒星天体物理 · 物理学 2024-10-10 Hiroyuki Masaki , Hideyuki Hotta

Observations of Interplanetary Scintillation (IPS) are an efficient remote-sensing method to study the solar wind and inner heliosphere. From 2016 to 2018, some distinctive observations of IPS sources like 3C 286 and 3C 279 were…

空间物理 · 物理学 2021-05-26 Li-Jia Liu , Bo Peng , Lei Yu , Ye-Zhao Yu , Ji-Guang Lu , Bin Liu , O. Chang , M. M. Bisi , FAST Collaboration

A current sheet (CS) is the central structure in the disrupting magnetic configuration during solar eruptions. More than 90\% of the free magnetic energy (the difference between the energy in the non-potential magnetic field and that in the…

太阳与恒星天体物理 · 物理学 2023-09-13 Yuhao Chen , Zhong Liu , Pengfei Chen , David F. Webb , Qi Hao , Jialiang Hu , Guanchong Cheng , Zhixing Mei , Jing Ye , Qian Wang , Jun Lin

Compressive plasma turbulence is investigated at sub-ion scales in the solar wind using both the Fast Plasma Investigation (FPI) instrument on the Magnetospheric MultiScale mission (MMS), as well as using calibrated spacecraft potential…

The current sheet is an essential feature in solar flares and is the primary site for magnetic reconnetion and energy release. Imaging observations feature a long linear structure above the candle-flame-shaped flare loops, which resembles…

太阳与恒星天体物理 · 物理学 2024-07-03 Tingyu Gou , Katharine K. Reeves

Observation of Interplanetary Scintillation (IPS) provides an important and effective way to study the solar wind and the space weather. A series of IPS observations were conducted by the Five-hundred-meter Aperture Spherical radio…

太阳与恒星天体物理 · 物理学 2022-08-03 Li-Jia Liu , Bo Peng , Lei Yu , Bin Liu , Ji-Guang Lu , Ye-Zhao Yu , Hong-Wei Xi , Ming Xiong , O. Chang

Interplanetary magnetic flux ropes (MFRs) are commonly observed structures in the solar wind, categorized as magnetic clouds (MCs) and small-scale MFRs (SMFRs) depending on whether they are associated with coronal mass ejections. We apply…

Decades of in-situ solar wind measurements have clearly established the variation of solar wind physical parameters. These variable parameters have been used to classify the solar wind magnetized plasma into different types leading to…

太阳与恒星天体物理 · 物理学 2024-09-17 Tom Narock , Sanchita Pal , Aryana Arsham , Ayris Narock , Teresa Nieves-Chinchilla

The solar wind is a dynamic plasma outflow that shapes heliospheric conditions and drives space weather. Identifying its large-scale phenomena is crucial, yet the increasing volume of high-cadence Parker Solar Probe (PSP) observations poses…

A post-CME current sheet (CS) is a common feature developed behind an erupting flux rope in CME models. Observationally, white light observations have recorded many occurrences of a thin ray appearing behind a CME eruption that closely…

太阳与恒星天体物理 · 物理学 2015-05-19 Yuan-Kuen Ko , John C. Raymond , Bojan Vrsnak , Eugen Vujic

Understanding the transport of Solar Energetic Particles (SEPs) from acceleration sites at the Sun into interplanetary space and to the Earth is an important question for forecasting space weather. The Interplanetary Magnetic Field (IMF),…

空间物理 · 物理学 2018-02-21 Markus Battarbee , Silvia Dalla , Mike S. Marsh

Studies on the dynamics of solar filaments have significant implications for understanding their formation, evolution, and eruption, which are of great importance for space weather warning and forecasting. The H$\alpha$ Imaging Spectrograph…

太阳与恒星天体物理 · 物理学 2024-02-23 Z. Zheng , Q. Hao , Y. Qiu , J. Hong , C. Li , M. D. Ding
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