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The evolution of laboratory produced magnetic jets is followed numerically through three-dimensional, non-ideal magnetohydrodynamic simulations. The experiments are designed to study the interaction of a purely toroidal field with an…

We analyze multi-wavelength and multi-viewpoint observations of a large-scale event viewed on 7 April 2011 originating from an active region complex. The activity leads to a white-light jet being formed in the outer corona. The topology and…

太阳与恒星天体物理 · 物理学 2015-06-03 Boris Filippov Serge Koutchmy Ehsan Tavabi

We analyzed a small flux rope eruption converted into a helical blowout jet in a fan-spine configuration using multi-wavelength observations taken by SDO, which occurred near the limb on 2016 January 9. In our study, first, we estimated the…

太阳与恒星天体物理 · 物理学 2018-02-28 Navin Chandra Joshi , Naoto Nishizuka , Boris Filippov , Tetsuya Magara , Andrey G. Tlatov

We study the emergence of a toroidal flux tube into the solar atmosphere and its interaction with a pre-existing field of an active region. We investigate the emission of jets as a result of repeated reconnection events between colliding…

太阳与恒星天体物理 · 物理学 2010-03-12 V. Archontis , K. Tsinganos , C. Gontikakis

The ubiquitous solar jets or jet-like activities are generally regarded as an important source of energy and mass input to the upper solar atmosphere and the solar wind. However, questions about their triggering and driving mechanisms are…

太阳与恒星天体物理 · 物理学 2019-10-02 Yuandeng Shen , Zhining Qu , Ding Yuan , Huadong Chen , Yadan Duan , Chengrui Zhou , Zehao Tang , Jin Huang , Yu Liu

Solar jets are impulsive, collimated plasma ejections that are triggered by magnetic reconnection. They are observed for many decades in various temperatures and wavelengths, therefore their kinematic characteristics, such as velocity and…

太阳与恒星天体物理 · 物理学 2022-08-17 Brigitte Schmieder , Reetika Joshi , Ramesh Chandra

We study a blowout jet that occurs at the west limb of the Sun on August 29$^{th}$, 2014 using high-resolution imaging/spectroscopic observations provided by SDO/AIA and IRIS. An inverse $\gamma$-shape flux-rope appears before the jet{--}…

太阳与恒星天体物理 · 物理学 2023-03-29 Sudheer K. Mishra , Kartika Sangal , Pradeep Kayshap , Petr Jelinek , A. K. Srivastava , S. P. Rajaguru

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…

太阳与恒星天体物理 · 物理学 2018-07-25 Ruisheng Zheng , Yao Chen , Zhenghua Huang , Bing Wang , Hongqiang Song

Spiral jets are impulsive plasma ejections that typically show an apparent rotation motion. Their generation, however, is still nont understood thoroughly. Based on a high-resolution vector magnetogram form the Polarimetric and Helioseismic…

太阳与恒星天体物理 · 物理学 2025-04-02 Z. F. Li , J. H. Guo , X. Cheng , M. D. Ding , L. P. Chitta , H. Peter , S. Poedts , D. Calchetti

We analyze a confined flare that developed a hot cusp-like structure high in the corona (H ~ 66 Mm). A growing cusp-shaped flare arcade is a typical feature in the standard model of eruptive flares, caused by magnetic reconnection at…

Dynamical jets are generally found on Light bridges (LBs), which are key to studying sunspots decays. So far, their formation mechanism is not fully understood. In this paper, we used state-of-the-art observations from the Goode Solar…

太阳与恒星天体物理 · 物理学 2019-01-16 Xianyong Bai , Hector Socas-Navarro , Daniel Nóbrega-Siverio , Jiangtao Su , Yuanyong Deng , Dong Li , Wenda Cao , Kaifan Ji

{We report our observations of a swirling flare-related EUV jet on 2011 October 15.} {We utilised the EUV observations from SDO/AIA. We extracted a wide slit along the jet axis and 12 thin slits across its axis to investigate the…

太阳与恒星天体物理 · 物理学 2015-06-18 Q. M. Zhang , H. S. Ji

The ATLAS Collaboration has developed a method to analyze large-radius jets composed of skinny $R=0.2$ subjets in heavy-ion collisions. We first demonstrate that the measurements pioneered by ATLAS constrain the value of $L_{\rm res}$, the…

高能物理 - 唯象学 · 物理学 2025-03-31 Arjun Srinivasan Kudinoor , Daniel Pablos , Krishna Rajagopal

We analyze multi-wavelength and multi-viewpoint observations of a helically twisted plasma jet formed during a confined filament eruption on 10-11 April 2013. Given a rather large scale event with its high spatial and temporal resolution…

太阳与恒星天体物理 · 物理学 2015-08-06 B. Filippov , A. K. Srivastava , B. N. Dwivedi , S. Masson , G. Aulanier , N. C. Joshi , W. Uddin

Solar jets are collimated plasma flows moving along magnetic field lines and accelerated at low altitude following magnetic reconnection. Several of them originate from anemone-shaped low-lying arcades and the most impulsive ones tend to be…

Multi-instrument observations of NOAA AR10938 on Jan. 14-18, 2007, are utilized to study the evolution of a magnetic thread system with multiple crossings suggestive of a twisted coronal flux rope. A C-class flare recorded by GOES on Jan.…

太阳与恒星天体物理 · 物理学 2009-02-04 Nour-Eddine Raouafi

Coronal jets are ubiquitous in active regions (ARs) and coronal holes. In this paper, we study a coronal jet related to a C3.4 circular-ribbon flare in active region 12434 on 2015 October 16. Two minifilaments were located under a 3D…

太阳与恒星天体物理 · 物理学 2021-03-17 Q. M. Zhang , Z. H. Huang , Y. J. Hou , D. Li , Z. J. Ning , Z. Wu

We performed three dimensional resistive magnetohydrodynamic simulations to study the magnetic reconnection using an initially shearing magnetic field configuration (force free field with a current sheet in the middle of the computational…

太阳与恒星天体物理 · 物理学 2015-05-27 R. L. Jiang , K. Shibata , H. Isobe , C. Fang

The rotational motion of solar jets is believed to be a signature of the untwisting process resulting from magnetic reconnection, which takes place between twisted closed magnetic loops (i.e., magnetic flux ropes) and open magnetic field…

太阳与恒星天体物理 · 物理学 2017-12-29 Jiajia Liu , Robert Erdélyi , Yuming Wang , Rui Liu

In this paper,we report a detailed analysis of recurrent jets originated from a location with emerging, canceling and converging negative magnetic field at the east edge of NOAA active region AR11166 from 2011 March 09 to 10. The event…

太阳与恒星天体物理 · 物理学 2019-05-27 Yuhu Miao , Y. Liu , Y. D. Shen , A. Elmhamdi , A. S. Kordi , H. B. Li , Z. Z. Abidin , Z. J. Tian