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相关论文: The Evolution and Space Weather Effects of Solar C…

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The study of the evolution of coronal holes (CHs) is especially important in the context of high-speed solar wind streams (HSS) emanating from them. Stream interaction regions may deliver large amount of energy into the Earths system, cause…

We present a concept study of a solar wind forecasting method for Earth, based on persistence modeling from STEREO in-situ measurements combined with multi-viewpoint EUV observational data. By comparing the fractional areas of coronal holes…

太阳与恒星天体物理 · 物理学 2018-02-01 M. Temmer , J. Hinterreiter , M. A. Reiss

Coronal holes (CH) are regions of open magnetic field lines in the solar corona and the source of fast solar wind. Understanding the evolution of coronal holes is critical for solar magnetism as well as for accurate space weather forecasts.…

空间物理 · 物理学 2018-05-02 Amr Hamada , Timo Asikainen , Ilpo Virtanen , Kalevi Mursula

Coronal Holes (CHs) are large-scale, low-density regions in the solar atmosphere which may expel high-speed solar wind streams that incite hazardous, geomagnetic storms. Coronal and solar wind models can predict these high-speed streams and…

In the era of space exploration, the implications of space weather have become increasingly evident. Central to this is the phenomenon of coronal holes, which can significantly influence the functioning of satellites and aircraft. These…

太阳与恒星天体物理 · 物理学 2024-06-24 Juyoung Yun

Through its magnetic activity, the Sun governs the conditions in Earth's vicinity, creating space weather events, which have drastic effects on our space- and ground-based technology. One of the most important solar magnetic features…

太阳与恒星天体物理 · 物理学 2022-05-18 Fadil Inceoglu , Yuri Y. Shprits , Stephan G. Heinemann , Stefano Bianco

Investigating the heliospheric evolution and consequences of Coronal mass ejections (CMEs) is critical to understanding the solar-terrestrial relationship. For the first time, Heliospheric Imagers (HIs) onboard STEREO, providing multiple…

太阳与恒星天体物理 · 物理学 2022-04-22 Wageesh Mishra

We investigate the evolution of a well-observed, long-lived, low-latitude coronal hole (CH) over 10 solar rotations in the year 2012. By combining EUV imagery from STEREO-A/B and SDO we are able to track and study the entire evolution of…

太阳与恒星天体物理 · 物理学 2018-08-01 S. G. Heinemann , M. Temmer , S. J. Hofmeister , A. M. Veronig , S. Vennerstroem

Coronal holes (CHs) are the source of high-speed streams (HSSs) in the solar wind, whose interaction with the slow solar wind creates corotating interaction regions (CIRs) in the heliosphere. Whenever the CIRs hit the Earth, they can cause…

太阳与恒星天体物理 · 物理学 2023-01-18 Simona Nitti , Tatiana Podladchikova , Stefan J. Hofmeister , Astrid M. Veronig , Giuliana Verbanac , Mario Bandić

The geo-effectiveness of Coronal Mass Ejections (CMEs) is a critical area of study in space weather, particularly in the lesser-explored domain of CME-CME interactions and their geomagnetic consequences. This study leverages the SWASTi…

太阳与恒星天体物理 · 物理学 2024-10-01 Prateek Mayank , Stefan Lotz , Bhargav Vaidya , Wageesh Mishra , D. Chakrabarty

Coronal holes (CHs) are magnetically open regions that allow hot coronal plasma to escape from the Sun and form the high-speed solar wind. This wind can interact with Earth's magnetic field. For this reason, developing an accurate…

太阳与恒星天体物理 · 物理学 2025-09-16 Jeremy A. Grajeda , Laura E. Boucheron , Michael S. Kirk , Andrew Leisner , C. Nick Arge , Jaime A. Landeros

Identification of solar coronal holes (CHs) provides information both for operational space weather forecasting and long-term investigation of solar activity. Source data for the first problem are typically most recent solar disk…

太阳与恒星天体物理 · 物理学 2020-11-18 Egor Illarionov , Alexander Kosovichev , Andrey Tlatov

Coronal holes (CHs) are widely considered as the main sources of high-speed solar wind streams. We validate this thesis comparing the smoothed time series of solar wind speed measured by Advanced Composition Explorer (ACE) and various…

太阳与恒星天体物理 · 物理学 2025-07-30 Egor Illarionov , Andrey Tlatov , Ivan Berezin , Nadezhda Skorbezh

We investigate the deflection and rotation behavior of 49 Earth-directed coronal mass ejections (CMEs) spanning the period from 2010 to 2020 aiming to understand the potential influence of coronal holes (CHs) on their trajectories. We…

太阳与恒星天体物理 · 物理学 2026-04-30 Suresh Karuppiah , Mateja Dumbović , Karmen Martinić , Manuela Temmer , Stephan G. Heinemann , Bojan Vršnak

It has long been known that the high-speed stream (HSS) peak velocity at Earth directly depends on the area of the coronal hole (CH) on the Sun. Different degrees of association between the two parameters have been shown by many authors. In…

Coronal holes are the observational manifestation of the solar magnetic field open to the heliosphere and are of pivotal importance for our understanding of the origin and acceleration of the solar wind. Observations from space missions…

In the era of space exploration, coronal holes on the sun play a significant role due to their impact on satellites and aircraft through their open magnetic fields and increased solar wind emissions. This study employs computer vision…

太阳与恒星天体物理 · 物理学 2024-08-01 Juyoung Yun , Jungmin Shin

The ISWAT clusters H1+H2 have a focus on interplanetary space and its characteristics, especially on the large-scale co-rotating and transient structures impacting Earth. SIRs, generated by the interaction between high-speed solar wind…

We study the short--term topological changes of equatorial and polar coronal hole (CH) boundaries, such as a variation of their area and disintegration, associated to reconnection with nearby (within 15$^\circ$ distance) quiescent…

太阳与恒星天体物理 · 物理学 2012-08-10 H. Gutiérrez , L. Taliashvili , Z. Mouradian

We explore the use of observed polar coronal holes (CHs) to constrain the flux distribution within the polar regions of global solar magnetic field maps in the absence of reliable quality polar field observations. Global magnetic maps,…

太阳与恒星天体物理 · 物理学 2022-06-29 Samuel J. Schonfeld , Carl J. Henney , Shaela I. Jones , Charles N. Arge
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