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We continue the investigation of a CME-driven coronal dimming from December 14 2006 using unique high resolution imaging of the chromosphere and corona from the Hinode spacecraft. Over the course of the dimming event we observe the dynamic…

太阳与恒星天体物理 · 物理学 2009-01-20 Scott W. McIntosh , Joan Burkepile , Robert J. Leamon

The heating of the solar corona and the puzzle of the slender high reaching magnetic loops seen in observations from the Transition Region And Coronal Explorer(TRACE) has been investigated through 3D numerical simulations, and found to be…

天体物理学 · 物理学 2007-05-23 Boris V. Gudiksen , Aake Nordlund

Coronal dimmings associated with coronal mass ejections (CME) from the Sun have gained much attention since the late 1990s when they were first observed in high-cadence imagery of the SOHO/EIT and Yohkoh/SXT instruments. They appear as…

The dynamics of magnetic fields in the Sun's active regions plays a key role in triggering solar eruptions. Studies have shown that changes in the photosphere's magnetic field can destabilize large-scale structure of the corona, leading to…

太阳与恒星天体物理 · 物理学 2025-03-25 Partha Chowdhury , Belur Ravindra , Sanjiv Kumar Tiwari

Failed filament eruptions are solar eruptions that are not associated with coronal mass ejections. In a failed filament eruption, the filament materials usually show some ascending and falling motions as well as generate bright EUV…

太阳与恒星天体物理 · 物理学 2017-03-29 Y. Li , M. D. Ding

The issue of predicting solar flares is one of the most fundamental in physics, addressing issues of plasma physics, high-energy physics, and modelling of complex systems. It also poses societal consequences, with our ever-increasing need…

太阳与恒星天体物理 · 物理学 2014-11-20 R. T. James McAteer , Peter T. Gallagher , Paul A. Conlon

Magnetic-field reconnection is believed to play a fundamental role in magnetized plasma systems throughout the Universe1, including planetary magnetospheres, magnetars and accretion disks around black holes. This letter present extreme…

太阳与恒星天体物理 · 物理学 2015-02-06 Yang Su , Astrid M. Veronig , Gordon D. Holman , Brian R. Dennis , Tongjiang Wang , Manuela Temmer , Weiqun Gan

The magnetic breakout model, in which reconnection in the corona leads to destabilization of a filament channel, explains numerous features of eruptive solar events, from small-scale jets to global-scale coronal mass ejections (CMEs). The…

太阳与恒星天体物理 · 物理学 2021-03-17 Pankaj Kumar , Judith T. Karpen , Spiro K. Antiochos , Peter F. Wyper , C. Richard DeVore , Benjamin J. Lynch

The evolution of an X2.7 solar flare, that occurred in a complex $\beta\gamma\delta$ magnetic configuration region on 2003 November 3 is discussed utilizing a multi-wavelength data set. The very first signature of pre-flare coronal activity…

天体物理学 · 物理学 2009-11-13 Bhuwan Joshi , P. K. Manoharan , Astrid M. Veronig , P. Pant , Kavita Pandey

Observations show that the mutual relationship between filament eruptions and solar flares cannot be described in terms of an unique scenario. In some cases, the eruption of a filament appears to trigger a flare, while in others the…

太阳与恒星天体物理 · 物理学 2014-12-08 Fatima Rubio da Costa , Francesca Zuccarello , Lyndsay Fletcher , Paolo Romano , Nicolas Labrosse

Magnetic reconnection is a rapid energy release process that is believed to be responsible for flares on the Sun and stars. Nevertheless, such flare-related reconnection is mostly detected to occur in the corona, while there have been few…

太阳与恒星天体物理 · 物理学 2016-03-21 Jie Hong , M. D. Ding , Ying Li , Kai Yang , Xin Cheng , Feng Chen , Cheng Fang , Wenda Cao

The solar active region photospheric magnetic field evolves rapidly during major eruptive events, suggesting appreciable feedback from the corona. Previous studies of these "magnetic imprints" are mostly based on line-of-sight only or…

太阳与恒星天体物理 · 物理学 2017-04-26 Xudong Sun , J. Todd Hoeksema , Yang Liu , Maria Kazachenko , Ruizhu Chen

Diagnosing solar flare conditions is essential for understanding coronal energy release. Using combined microwave and X-ray data, we reconstruct three-dimensional maps of the magnetic field and plasma parameters in the SOL2021-05-07 flare.…

太阳与恒星天体物理 · 物理学 2026-03-06 Tatyana Kaltman , Sijie Yu , Gregory D. Fleishman , Daniel F. Ryan

The solar corona is frequently disrupted by coronal mass ejections (CMEs), whose core structure is believed to be a flux rope made of helical magnetic field. This has become a "standard" picture although it remains elusive how the flux rope…

太阳与恒星天体物理 · 物理学 2018-05-02 Arun Kumar Awasthi , Rui Liu , Haimin Wang , Yuming Wang , Chenglong Shen

We present observations of an eruptive solar flare on 2016 January 6 that occurred behind the solar limb from the perspective of the Earth, but was well observed by STEREO and the Solar Extreme Ultraviolet Monitor on the Mars Atmosphere and…

Magnetic flux ropes (MFRs) are believed to be at the heart of solar coronal mass ejections (CMEs). A well-known example is the prominence cavity in the low corona that sometimes makes up a three-part white-light (WL) CME upon its eruption.…

太阳与恒星天体物理 · 物理学 2015-06-22 Bin Chen , Timothy S. Bastian , Dale E. Gary

Solar flares are one of the main forces behind space weather events. However the mechanism that drives such energetic phenomena is not fully understood. The standard eruptive flare model predicts that magnetic reconnection occurs high in…

太阳与恒星天体物理 · 物理学 2015-06-17 S. Imada , K. Aoki , H. Hara , T. Watanabe , L. K. Harra , T. Shimizu

Theoretically, CME kinematics are related to magnetic reconnection processes in the solar corona. However, the current quantitative understanding of this relationship is based on the analysis of only a handful of events. Here we report a…

太阳与恒星天体物理 · 物理学 2020-05-06 Chunming Zhu , Jiong Qiu , Paulett Liewer , Angelos Vourlidas , Michael Spiegel , Qiang Hu

This paper reviews the studies of solar photospheric magnetic field evolution in active regions and its relationship to solar flares. It is divided into two topics, the magnetic structure and evolution leading to solar eruptions and the…

太阳与恒星天体物理 · 物理学 2015-06-23 Haimin Wang , Chang Liu

Coronal Mass ejections or CMEs are large dynamical solar-corona events. The mass balance and kinematics of a fast limb CME, including its prominence progenitor and the associated flare, will be compared with computed magnetic structures to…

天体物理学 · 物理学 2009-11-13 Serge Koutchmy , Vladimir Slemzin , Boris Filippov , Jacques-Clair Noens , David Romeuf , Leon Golub