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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

Oscillations in solar coronal loops appear to be a common phenomenon. Transverse and longitudinal oscillations have been observed with both the Transition Region and Coronal Explorer and Extreme Ultraviolet Imaging Telescope imaging…

天体物理学 · 物理学 2009-11-10 John T. Mariska

The first evidence of transverse oscillations of a multistranded loop with growing amplitudes and internal coupling observed by the Atomspheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) is presented. The loop…

太阳与恒星天体物理 · 物理学 2014-04-24 Tongjiang Wang , Leon Ofman , Joseph M. Davila , Yang Su

We analyze high cadence high resolution observations of a C3.2 flare obtained by AIA/SDO on August 1, 2010. The flare is a long duration event with soft X-ray and EUV radiation lasting for over four hours. Analysis suggests that magnetic…

太阳与恒星天体物理 · 物理学 2015-06-03 Jiong Qiu , Wen-Juan Liu , Dana W. Longcope

We have analyzed H-alpha intensity images obtained at a 1 minute cadence with the Global Oscillation Network Group (GONG) system to investigate the properties of oscillations in the 0-8 mHz frequency band at the location and time of strong…

太阳与恒星天体物理 · 物理学 2018-03-08 Teresa Monsue , Frank Hill , Keivan G. Stassun

Ever since their detection two decades ago, standing kink oscillations in coronal loops have been extensively studied both observationally and theoretically. Almost all driven coronal loop oscillations (e.g., by flares) are observed to damp…

太阳与恒星天体物理 · 物理学 2019-05-31 C. J. Nelson , A. A. Shukhobodskiy , R. Erdélyi , M. Mathioudakis

We perform multiwavelength time-distance analysis of a fan loop system anchored in an isolated sunspot region AR 12553. The active region was observed by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory. We measure…

太阳与恒星天体物理 · 物理学 2020-07-01 Aishawnnya Sharma , Durgesh Tripathi , Robertus Erdelyi , G. R. Gupta , G. A. Ahmed

We report a quasi-periodic pulsation (QPP) event simultaneously detected from the spatial displacements of coronal loop at both EUV images and microwave emission during the preflare phase of a C1.1 flare on 2016 March 23. Using the motion…

太阳与恒星天体物理 · 物理学 2020-04-22 Dong Li , Ying Li , Lei Lu , Qingmin Zhang , Zongjun Ning , Sergey Anfinogentov

We present the first \emph{Solar Dynamics Observatory}/Atmospheric Imaging Assembly observations of the large-amplitude longitudinal (LAL) oscillations in the south and north parts (SP and NP) of a solar filament on 2012 April 7. Both…

太阳与恒星天体物理 · 物理学 2015-06-11 Ting Li , Jun Zhang

The physical processes causing energy exchange between the Sun's hot corona and its cool lower atmosphere remain poorly understood. The chromosphere and transition region (TR) form an interface region between the surface and the corona that…

Context: As a ubiquitous phenomenon, large-amplitude longitudinal filament oscillations usually decay in 1--4 periods. Recently, we observed a decayless case of such oscillations in the corona. Aims: We try to understand the physical…

太阳与恒星天体物理 · 物理学 2022-07-13 Y. W. Ni , J. H. Guo , Q. M. Zhang , J. L. Chen , C. Fang , P. F. Chen

We analyze flare-associated transverse oscillations in a quiescent solar prominence on 8-9 September, 2010. Both the flaring active region and the prominence were located near the West limb, with a favorable configuration and viewing angle.…

太阳与恒星天体物理 · 物理学 2015-06-11 Sanjay Gosain , Claire Foullon

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

Solar flares are widely accepted to be powered by magnetic reconnection that involves complex dynamics in various scales. The flare supra-arcade and loop-top region, directly impacted by fast reconnection downflows, contains a wealth of…

太阳与恒星天体物理 · 物理学 2025-05-27 Tingyu Gou , Katharine K. Reeves

The relatively large-amplitude decaying regime of transverse oscillations of coronal loops has been known for two decades and interpreted in terms of MHD kink modes of cylindrical plasma waveguides. Recent observational analysis has…

太阳与恒星天体物理 · 物理学 2020-01-15 A. N. Afanasyev , T. Van Doorsselaere , V. M. Nakariakov

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

It is largely agreed that many coronal loops---those observed at a temperature of about 1 MK--- are bundles of unresolved strands that are heated by storms of impulsive nanoflares. The nature of coronal heating in hotter loops and in the…

太阳与恒星天体物理 · 物理学 2015-05-28 Nicholeen M. Viall , James A. Klimchuk

Solar coronal loops represent the variety of fast, intermediate, and slow normal mode oscillations. In this study, the transverse oscillations of the loops with a few-minutes period and also with damping caused by the resonant absorption…

太阳与恒星天体物理 · 物理学 2019-02-27 Javad Ganjali , Nastaran Farhang , Shahriar Esmaeili , Mohsen Javaherian , Hossein Safari

Longitudinal and transverse oscillations are frequently observed in the solar prominences and/or filaments. These oscillations are excited by a large scale shock wave, impulsive flares at one leg of the filament threads, or due to any low…

太阳与恒星天体物理 · 物理学 2019-12-25 Rakesh Mazumder , Vaibhav Pant , Manuel Luna , Dipankar Banerjee

We study intensity variations, as measured by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO), in a solar coronal arcade using a newly developed analysis procedure that employs spatio-temporal…

太阳与恒星天体物理 · 物理学 2019-07-24 Farhad Allian , Rekha Jain , B. W Hindman