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Context. Penumbral microjets are elongated jet-like brightenings observed in the chromosphere above sunspot penumbrae. They are transient events that last from a few seconds to several minutes and are thought to originate from magnetic…

Solar and Stellar Astrophysics · Physics 2020-10-14 A. Siu-Tapia , L. R. Bellot Rubio , D. Orozco Suárez , R. Gafeira

We present 18 GHz Australia Telescope Compact Array imaging of the Mpc-scale quasar jet PKS 0637-752 with angular resolution ~0.58 arcseconds. We draw attention to a spectacular train of quasi-periodic knots along the inner 11 arcseconds of…

We examine a small prominence eruption that occurred on 2014 May 1 at 01:35 UT and was observed by the Interface Region Imaging Spectrometer (IRIS) and the Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory (SDO). Pre- and…

Solar and Stellar Astrophysics · Physics 2015-05-28 Katharine K. Reeves , Patrick I. McCauley , Hui Tian

The impact of high-speed jets -- dynamic pressure enhancements in the magnetosheath -- on the Earth's magnetopause has been observed to trigger local magnetic reconnection. We perform a three-dimensional hybrid simulation to study the…

Space Physics · Physics 2024-06-19 J. Ng , L. -J. Chen , Y. Omelchenko

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

We present detailed analysis of an active region coronal jet accompanying a minifilament eruption that is fully captured and well-resolved in high spatial resolution 174A coronal images from Solar Orbiters Extreme Ultraviolet Imager (EUI).…

Context: A subclass of broad EUV and X-ray jets, called blowout jets, have become a topic of research since they could be the link between standard collimated jets and CMEs.} Aim: Our aim is to understand the origin of a series of broad…

Solar and Stellar Astrophysics · Physics 2017-02-01 R. Chandra , C. H. Mandrini , B. Schmieder , B. Joshi , G. D. Cristiani , H. Cremades , E. Pariat , F. A. Nuevo , A. K. Srivastava , W. Uddin

On the Sun,jets in light bridges are frequently observed with high-resolution instruments.The respective roles played by convection and the magnetic field in triggering such jets are not yet clear.We report a small fan-shaped jet along a LB…

Solar and Stellar Astrophysics · Physics 2022-11-02 Y. Liu , G. P. Ruan , B. Schmieder , S. Masson , Y. Chen , J. T. Su , B. Wang , X. Y. Bai , Y. Su , Wenda Cao

Using high spatiotemporal resolution, multi-wavelength observations from the New Vacuum Solar Telescope (NVST) and the Solar Dynamics Observatory (SDO), we present a detailed analysis of a small-scale chromospheric jet driven by…

Solar and Stellar Astrophysics · Physics 2025-07-03 Zehao Tang , Yuandeng Shen , Chengrui Zhou , Surui Yao , Dongxu Liu , Xiaobo Li

We studied the dynamics of the solar atmosphere in the region of a large quiet-Sun filament, which erupted on 21 October 2010. The filament eruption started at its northern end and disappeared from the H$\alpha$ line-core filtergrams line…

Solar and Stellar Astrophysics · Physics 2020-04-29 Jiří Wollmann , Michal Švanda , David Korda , Thierry Roudier

The ubiquitous relativistic jet phenomena associated with black holes play a major role in high and very-high-energy (VHE) astrophysics. In particular, observations have demonstrated that blazars show VHE emission with time-variability from…

High Energy Astrophysical Phenomena · Physics 2021-05-19 Luís H. S Kadowaki , Elisabete M. de Gouveia Dal Pino , Tania E. Medina Torrejon , Yosuke Mizuno , Pankaj Kushwaha

Aims. We perform a detailed observational analysis of network jets to understand their kinematics, rotational motion and underlying triggering mechanism(s). We have analyzed the quiet-Sun (QS) data. Methods. IRIS high resolution imaging and…

Solar and Stellar Astrophysics · Physics 2018-08-29 P. Kayshap , K. Murawski , A. K. Srivastava , B. N. Dwivedi

Remote brightening (RB) is compact brightening at footpoints of magnetic loops, which are remotely-connecting to and confining an eruption in the solar atmosphere. Here, we report on observations of an RB resulting from an EUV jet with a…

Solar and Stellar Astrophysics · Physics 2025-01-14 Chao Zhang , Zhenghua Huang , Hengyuan Wei , Youqian Qi , Mijie Shi , Hui Fu , Xiuhui Zuo , Weixin Liu , Mingzhe Sun , Ming Xiong , Lidong Xia

Large-amplitude oscillations (LAOs) are often detected in filaments. Using multiwavelength observations, their origin can be traced back to the interaction with eruptions and jets. We present two different case studies as observational…

Solar and Stellar Astrophysics · Physics 2023-03-29 Reetika Joshi , Manuel Luna , Brigitte Schmieder , Fernando Moreno-Insertis , Ramesh Chandra

Recent studies have revealed that solar jets involving minifilament eruptions may be initiated under the well-known magnetic-breakout mechanism. Before or just at the onset of those jets, there should be a current sheet, where breakout…

Solar and Stellar Astrophysics · Physics 2019-04-10 Junchao Hong , Jiayan Yang , Huadong Chen , Yi Bi , Bo Yang , Hechao Chen

In solar-like oscillators, acoustic waves are excited by turbulent motion in the convective envelope and propagate inward, generating a variety of standing pressure modes. When combining together the power of several solar acoustic modes,…

Solar and Stellar Astrophysics · Physics 2025-08-27 E. Panetier , R. A. García , S. N. Breton , A. Jiménez , T. Foglizzo

Large-scale solar eruptions often include ejection of a filament, a solar flare, and expulsion of a coronal mass ejection (CME). Unravelling the magnetic processes that build up the free energy for these eruptions and trigger that energy's…

Solar and Stellar Astrophysics · Physics 2024-10-03 Alphonse C. Sterling , Ronald L. Moore , Navdeep K. Panesar

Context. Solar blowout jets are a distinct subclass of ubiquitous extreme-ultraviolet (EUV) and X-ray coronal jets. Aims. Most existing models of blowout jets prescribe an initial magnetic field configurations and apply ad-hoc changes in…

Solar and Stellar Astrophysics · Physics 2026-02-11 Yajie Chen , Hardi Peter , Damien Przybylski , Lakshmi Pradeep Chitta , Sudip Mandal

A solar jet on 2014 July 31, which was accompanied by a GOES C1.3 flare and a mini-filament eruption at the jet base, was studied by using observations taken by the New Vacuum Solar Telescope and the Solar Dynamic Observatory. Magnetic…

Solar and Stellar Astrophysics · Physics 2019-11-11 Yuandeng Shen , Zhining Qu , Chengrui Zhou , Yadan Duan , Zehao Tang , Ding Yuan

We report a study of a compound solar eruption that was associated with two consecutively erupting magnetic structures and correspondingly two distinct peaks, during impulsive phase, of an M-class flare (M8.5). Simultaneous multi-viewpoint…

Solar and Stellar Astrophysics · Physics 2018-07-03 Suman K. Dhakal , Georgios Chintzoglou , Jie Zhang
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