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The solar atmosphere is full of complicated transients manifesting the reconfiguration of solar magnetic field and plasma. Solar jets represent collimated, beam-like plasma ejections; they are ubiquitous in the solar atmosphere and…

Solar and Stellar Astrophysics · Physics 2021-02-09 Yuandeng Shen

Studies on small-scale jets' formation, propagation, evolution, and role, such as type I and II spicules, mottles, and fibrils in the lower solar atmosphere's energetic balance, have progressed tremendously thanks to the combination of…

Kinematics of solar eruptive filaments is one of the important diagnostic parameters for predicting whether solar eruptions would induce geomagnetic storms. Particularly, some geomagnetic storms might be induced by solar filament eruptions…

Solar and Stellar Astrophysics · Physics 2025-08-26 Ye Qiu , Yang Guo , Mingde Ding , Chuan Li , Linggao Kong , Zhen Li

Solar filaments/prominences are one of the most common features in the corona, which may lead to energetic coronal mass ejections (CMEs) and flares when they erupt. Filaments are about one hundred times cooler and denser than the coronal…

Solar and Stellar Astrophysics · Physics 2017-02-22 Hongqiang Song , Yao Chen , Bo Li , Leping Li , Liang Zhao , Jiansen He , Die Duan , Xin Cheng , Jie Zhang

Coronal mass ejections (CMEs) and eruptive flares (EFs) are the most energetic explosions in the solar system. Their underlying origin is the free energy that builds up slowly in the sheared magnetic field of a filament channel. We report…

Solar and Stellar Astrophysics · Physics 2019-10-03 Joel T. Dahlin , Spiro K. Antiochos , C. Richard DeVore

Recent observations show that the buildup and triggering of minifilament eruptions that drive coronal jets result from magnetic flux cancelation at the neutral line between merging majority- and minority-polarity magnetic flux patches. We…

Solar and Stellar Astrophysics · Physics 2018-11-28 Navdeep K. Panesar , Alphonse C. Sterling , Ronald L. Moore , Sanjiv K. Tiwari , Bart De Pontieu , Aimee A. Norton

Using EUV images and line-of-sight magnetograms from Solar Dynamics Observatory, we examine eight emerging bipolar magnetic regions (BMRs) in central-disk coronal holes for whether the emerging magnetic arch made any noticeable coronal jets…

Solar and Stellar Astrophysics · Physics 2021-05-19 Abigail R. Harden , Navdeep K. Panesar , Ronald L. Moore , Alphonse C. Sterling , Mitzi L. Adams

In this paper, we present unique observations of a blowout coronal jet that possibly triggered a two-ribbon confined C1.2 flare in a bipolar solar active region NOAA 12615 on 2016 December 5. The jet activity initiates at…

Solar and Stellar Astrophysics · Physics 2017-12-20 Bhuwan Joshi , Julia K. Thalmann , Prabir K. Mitra , Ramesh Chandra , Astrid M. Veronig

We present an observational study of the plasma dynamics at the base of a solar coronal jet, using high resolution extreme ultraviolet imaging data taken by the Extreme Ultraviolet Imager on board Solar Orbiter, and by the Atmospheric…

We computed the thermal microwave emission from a 3D magnetohydrodynamic (MHD) simulation and compared it with observations of solar jets. The simulation treats the emergence of magnetic flux into the solar atmosphere and its interaction…

Solar and Stellar Astrophysics · Physics 2025-07-23 Costas E. Alissandrakis , Vasilis Archontis , Kostas Moraitis

Eruptions of filaments are defined by different parameters, specially, sigmoid handedness and direction of the eruption, which are important parameters for forecasting the geoeffectiveness of consequent interplanetary coronal mass ejection…

Solar and Stellar Astrophysics · Physics 2025-11-26 Brigitte Schmieder , Anwesha Maharana , Jin Han Guo , Luis Linan , Stefaan Poedts

Flux emergence is crucial for the formation of solar active regions and triggering of various eruptions. However, the detailed mechanisms by which flux emergence drives these eruptions remain unclear and require numerical investigation.…

Solar and Stellar Astrophysics · Physics 2025-06-18 Xiaohong Li , Yuhao Zhou , Rony Keppens

Flux emergence is responsible for various solar eruptions. Combining observation and simulations, we investigate the influence of flux emergence at one footpoint of an arcade on coronal rain as well as induced eruptions. The emergence…

Solar and Stellar Astrophysics · Physics 2023-04-26 Xiaohong Li , Rony Keppens , Yuhao Zhou

Filament eruptions often lead to coronal mass ejections (CMEs), which can affect critical technological systems in space and on the ground when they interact with the geo-magnetosphere in high speeds. Therefore, it is an important issue to…

Solar and Stellar Astrophysics · Physics 2015-05-20 Hongqiang Song , Yao Chen , Jie Zhang , Xin Cheng , Hui Fu , Gang Li

Coronal jets are always produced by magnetic reconnection between emerging flux and pre-existing overlying magnetic fields. When the overlying field is vertical/obilique or horizontal, the coronal jet will appear as anemone type or…

Solar and Stellar Astrophysics · Physics 2018-07-25 Ruisheng Zheng , Yao Chen , Zhenghua Huang , Bing Wang , Hongqiang Song

Using numerical simulations, we show that jets with features of type II spicules and cold coronal jets corresponding to temperatures $10^{4}$ K can be formed due to magnetic reconnection in a scenario in presence of magnetic resistivity.…

Solar and Stellar Astrophysics · Physics 2017-05-29 J. J. González-Avilés , F. S. Guzmán , V. Fedun

It is not fully understood why some solar filaments erupt while others do not. Those that do typically undergo a slow rise followed by an acceleration phase, though this transition requires further investigation. Erupting prominences have…

Solar and Stellar Astrophysics · Physics 2026-03-25 Dion Donné , Yuhao Zhou , Hebe Cremades , Rony Keppens

We study the collimation of a highly magnetized jet by a surrounding cocoon that forms as a result of the interaction of the jet with the external medium. We show that in regions where the jet is well confined by the cocoon, current-driven…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Amir Levinson , Mitchell C. Begelman

Three-dimensional magnetic topology of solar flare plays a crucial role in understanding its explosive release of magnetic energy in the corona. However, such three-dimensional coronal magnetic field is still elusive in direct observation.…

Solar and Stellar Astrophysics · Physics 2018-02-09 Chaowei Jiang , Peng Zou , Xueshang Feng , Qiang Hu , Aiying Duan , Pingbing Zuo , Yi Wang , Fengsi Wei

Solar jets are fast-moving, elongated brightenings related to ejections seen in both images and spectra on all scales from barely visible chromospheric jets to coronal jets extending up to a few solar radii. The largest, most powerful jets…

Solar and Stellar Astrophysics · Physics 2016-12-07 Davina Innes , Radoslav Bucik , Li-Jia Guo , Nariaki Nitta