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We perform a 2.5 dimensional magnetohydrodynamic (MHD) simulation to understand a comprehensive view of the formation of spicule-like cool jets due to initial transverse velocity pulses akin to Alfv\'en pulses in the solar chromosphere. We…

太阳与恒星天体物理 · 物理学 2022-02-02 B. Singh , A. K. Srivastava , K. Sharma , S. K. Mishra , B. N. Dwivedi

The propagation and the evolution of Alfvenic pulses in the solar coronal arcades is investigated by means of MHD numerical simulations. Significant transverse oscillations in coronal loops, triggered by nearby flare events, are often…

天体物理学 · 物理学 2009-11-10 Luca Del Zanna , Eveline Schaekens , Marco Velli

In this article, we report the multiwavelength and multiview observations of transverse oscillations of two loop strands induced by a jet-related, confined flare in active region NOAA 13056 on 11 July 2022. The jet originates close to the…

太阳与恒星天体物理 · 物理学 2025-04-28 Musheng Lin , Ya Wang , Liheng Yang , Jie Chen , Wenwei Pan , Shuyue Li , Qingmin Zhang

In this work, we report our multi-wavelength observations of the transverse oscillation of a large scale coronal loop with a length of 350 Mm. The oscillation was induced by a blowout coronal jet, which was related to a circular ribbon…

太阳与恒星天体物理 · 物理学 2021-02-03 J. Dai , Q. M. Zhang , Y. N. Su , H. S. Ji

This short review paper gives an overview of recently observed transverse, propagating velocity perturbations in coronal loops. These ubiquitous perturbations are observed to undergo strong damping as they propagate. Using 3D numerical…

太阳与恒星天体物理 · 物理学 2015-10-06 I. De Moortel , D. J. Pascoe , A. N. Wright , A. W. Hood

Within the framework of resistive MHD, implementing the C7 equilibrium atmosphere model and a 3D potential magnetic field realistic configuration, we simulate the formation of a plasm jet with the morphology, upward velocity up to 130 km/s…

太阳与恒星天体物理 · 物理学 2020-05-29 J. J. González-Avilés , F. S. Guzmán , V. Fedun , G. Verth , R. Sharma , S. Shelyag , S. Regnier

Intensity bursts in ultraviolet (UV) to X-ray wavelengths and plasma jets are typical signatures of magnetic reconnection and the associated impulsive heating of the solar atmospheric plasma. To gain new insights into the process,…

太阳与恒星天体物理 · 物理学 2021-12-15 L. P. Chitta , S. K. Solanki , H. Peter , R. Aznar Cuadrado , L. Teriaca , U. Schühle , F. Auchère , D. Berghmans , E. Kraaikamp , S. Gissot , C. Verbeeck

We present an in-depth analysis of transverse oscillations in the M87 jet, as identified in our previous study (Ro et al. 2023a), which reported oscillatory patterns with a characteristic period of $\sim$1 year in the edge-brightened jet…

高能天体物理现象 · 物理学 2026-03-04 Hyunwook Ro , Motoki Kino , Kazuhiro Hada , Yosuke Mizuno , Yuzhu Cui , Kunwoo Yi , Tomohisa Kawashima , Jongho Park , Bong Won Sohn

We detect and analyse transverse oscillations in a coronal loop, lying at the south east limb of the Sun as seen from the \textit{{Atmospheric Imaging Assembly}} (AIA) onboard \textit{{Solar Dynamics Observatory}} (SDO). The jet is believed…

太阳与恒星天体物理 · 物理学 2016-12-07 S. Sarkar , V. Pant , A. K. Srivastava , D. Banerjee

The solar chromosphere contains thin, highly dynamic strands of plasma known as spicules. Recently, it has been suggested that the smallest and fastest (Type II) spicules are identical to intermittent jets observed by the Interface Region…

太阳与恒星天体物理 · 物理学 2015-10-14 Steven R. Cranmer , Lauren N. Woolsey

Coronal plumes and chromospheric jet-like structures are believed to be highly dynamic. We report the first direct observations of a propagating kink wave in a chromospheric jet-like structure and its associated plumelet structure in the…

太阳与恒星天体物理 · 物理学 2026-03-27 Youqian Qi , Mingzhe Guo , Zhenghua Huang , Tom Van Doorsselaere , Bo Li , Lidong Xia , Hengyuan Wei , Hui Fu

We present fully three-dimensional hydrodynamical simulations of radiative cooling jets propagating into stratified isothermal ambient media with power-law density and pressure distributions. The parameters used are mainly suitable for…

天体物理学 · 物理学 2009-10-28 Elisabete M. de Gouveia Dal Pino , Mark Birkinshaw

EUV jets situated in coronal holes are thought to play an important role in supplying heated material to the corona and solar wind. The multi-wavelength capabilities and high signal-to-noise of detectors on-board SDO allows for detailed…

太阳与恒星天体物理 · 物理学 2015-06-17 K. Chandrashekhar , R. J. Morton , D. Banerjee , G. R. Gupta

{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

EUV imaging observations from several space missions (SOHO/EIT, TRACE, and SDO/AIA) have revealed a presence of propagating intensity disturbances in solar coronal loops. These disturbances are typically interpreted as slow magnetoacoustic…

太阳与恒星天体物理 · 物理学 2018-01-24 Elena Provornikova , Leon Ofman , Tongjiang Wang

We study the formation of coronal jets through numerical simulation of the emergence of a twisted magnetic flux rope into a pre-existing open magnetic field. Reconnection inside the emerging flux rope in addition to that between the…

太阳与恒星天体物理 · 物理学 2015-06-19 Fang Fang , Yuhong Fan , Scott W. McIntosh

Extreme-ultraviolet and X-ray jets occur frequently in magnetically open coronal holes on the Sun, especially at high solar latitudes. Some of these jets are observed by white-light coronagraphs as they propagate through the outer corona…

太阳与恒星天体物理 · 物理学 2017-03-15 Vadim M. Uritsky , Merrill A. Roberts , C. Richard DeVore , Judith T. Karpen

Aims: Propagation and energy transfer of torsional Alfv\'en waves in solar magnetic flux tubes of axial symmetry is studied. Methods: An analytical model of a solar magnetic flux tube of axial symmetry is developed by specifying a magnetic…

太阳与恒星天体物理 · 物理学 2015-05-20 K. Murawski , A. Solov'ev , Z. E. Musielak , A. K. Srivastava , J. Kraskiewicz

In the solar atmosphere, jets are prevalent and they are significant for the mass and energy transport. Here we conduct numerical simulations to investigate the mass and energy contributions of the recently observed high-speed jets to the…

太阳与恒星天体物理 · 物理学 2016-08-24 Liping Yang , Jiansen He , Hardi Peter , Chuanyi Tu , Lei Zhang , Eckart Marsch , Linghua Wang , Xueshang Feng

We report on numerical experiment of the recurrent onset of helical "blowout" jets in an emerging flux region (EFR). We find that these jets are running with velocities of $\sim 100-250\,\mathrm{kms^{-1}}$ and they transfer a vast amount of…

太阳与恒星天体物理 · 物理学 2015-06-23 E. J. Lee , V. Archontis , A. W. Hood
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