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There is intense interest in determining the precise contribution of Alfv\'enic waves propagating along solar structures to the problems of coronal heating and solar wind acceleration. Since the launch of SDO/AIA, it has been possible to…

Solar and Stellar Astrophysics · Physics 2015-06-22 J. O. Thurgood , R. J Morton , J. A. McLaughlin

{Observations of the solar atmosphere have shown that magnetohydrodynamic waves are ubiquitous throughout. Improvements in instrumentation and the techniques used for measurement of the waves now enables subtleties of competing theoretical…

Solar and Stellar Astrophysics · Physics 2016-09-28 R. J. Morton , K. Mooroogen

Active region fan loops in AR 11076 were studied, in search of oscillations, using high cadence spectroscopic observations from EIS on board Hinode combined with imaging sequences from the AIA on board SDO. Spectra from EIS were analyzed in…

Solar and Stellar Astrophysics · Physics 2012-08-08 S. Krishna Prasad , D. Banerjee , Jagdev Singh

Large-amplitude decaying kink oscillations of coronal loops are strongly influenced by nonlinear processes, such as Kelvin-Helmholtz instability (KHI) and turbulence, though comprehensive theory and observational confirmation remain…

Solar and Stellar Astrophysics · Physics 2026-02-13 Sihui Zhong , Andrew Hillier , Iñigo Arregui

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…

Solar and Stellar Astrophysics · Physics 2021-02-03 J. Dai , Q. M. Zhang , Y. N. Su , H. S. Ji

The Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) returns high-resolution images of the solar atmosphere in seven extreme ultraviolet (EUV) wavelength channels. The images are processed on the ground to…

Solar and Stellar Astrophysics · Physics 2022-01-05 Peter R. Young , Nicholeen M. Viall , Michael S. Kirk , Emily I. Mason , Lakshmi Pradeep Chitta

Kink oscillations, which are frequently observed in coronal loops and prominences, are often accompanied by extreme-ultraviolet (EUV) waves. However, much more needs to be explored regarding the causal relationships between kink…

Solar and Stellar Astrophysics · Physics 2023-11-16 Dong Li , Zhenyong Hou , Xianyong Bai , Chuan Li , Matthew Fang , Haisheng Zhao , Jincheng Wang , Zongjun Ning

A hybrid machine learning model which combines a shallow convolutional neural network and a long short-term memory network (CNN--LSTM), has been developed to automate the detection of kink oscillations in coronal plasma loops within large…

Solar and Stellar Astrophysics · Physics 2025-09-19 Sergey A. Belov , Yu Zhong , Dmitrii Y. Kolotkov , Valery M. Nakariakov

Coronal oscillations offer insight into energy transport and driving in the solar atmosphere. Knowing its polarisation state helps constrain a wave's displacement and velocity amplitude, improving estimates of wave energy flux and…

Solar and Stellar Astrophysics · Physics 2025-03-10 T. J. Duckenfield , D. B. Jess , R. J. Morton , S. Jafarzadeh

We investigate the evolutions of two prominences (P1,P2) and two bundles of coronal loops (L1,L2), observed with SDO/AIA near the east solar limb on 2012 September 22. It is found that there were large-amplitude oscillations in P1 and L1,…

Solar and Stellar Astrophysics · Physics 2016-11-09 Quanhao Zhang , Yuming Wang , Rui Liu , Chenglong Shen , Min Zhang , Tingyu Gou , Jiajia Liu , Kai Liu , Zhenjun Zhou , Shui Wang

Decayless kink oscillations are ubiquitously observed in active region coronal loops with an almost constant amplitude for several cycles. Decayless kink oscillations of coronal loops triggered by coronal rain have been analysed, but the…

Solar and Stellar Astrophysics · Physics 2024-09-25 Arpit Kumar Shrivastav , Vaibhav Pant , Patrick Antolin

We present a statistical study of prominence and filament eruptions observed by the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO). Several properties are recorded for 904 events that were culled from the…

Solar and Stellar Astrophysics · Physics 2015-05-11 Patrick I. McCauley , Yingna Su , Nicole Schanche , Kaitlin E. Evans , Chuan Su , Sean McKillop , Katharine K. Reeves

A Crescent shaped prominence Structure (CS), over the solar west limb is studied using EIS/HINODE and AIA/SDO. First, the time varying positions of the top and below borders of the CS, along with its central axis are derived. Time…

Solar and Stellar Astrophysics · Physics 2023-11-17 Maryam Ghiasi , Neda Dadashi , Hossein Ebadi

We observed quiescent coronal loops using multi-wavelength observations from the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) on 2016 April 13. The flows at the footpoints of such loop systems are studied…

Solar and Stellar Astrophysics · Physics 2019-10-02 Yamini K. Rao , Abhishek K. Srivastava , Pradeep Kayshap , Bhola N. Dwivedi

Global extreme ultraviolet (EUV) waves are spectacular traveling disturbances in the solar corona associated with energetic eruptions such as coronal mass ejections (CMEs) and flares. Over the past 15 years, observations from three…

Solar and Stellar Astrophysics · Physics 2014-05-07 Wei Liu , Leon Ofman

Three-minute oscillations over sunspot's umbra in AR 11131 were observed simultaneously in UV/EUV emission by SDO/AIA and in radio emission by Nobeyama Radioheliograph (NoRH). We use 24-hours series of SDO and 8-hours series of NoRH…

Solar and Stellar Astrophysics · Physics 2015-05-30 V. E. Reznikova , K. Shibasaki , R. A. Sych , V. M. Nakariakov

We extend a previous statistical solar flare study of 155 GOES M- and X-class flares observed with AIA/SDO (Aschwanden 2012) to all 7 coronal wavelengths (94, 131, 171, 193, 211, 304, 335 \ang) to test the wavelength-dependence of scaling…

Solar and Stellar Astrophysics · Physics 2015-06-17 Markus J. Aschwanden , Jie Zhang , Kai Liu

Alfv\'enic waves have gained renewed interest since the existence of ubiquitous propagating kink waves were discovered in the corona. {It has long been suggested that Alfv\'enic} waves play an important role in coronal heating and the…

Solar and Stellar Astrophysics · Physics 2019-05-15 Ajay K. Tiwari , Richard J. Morton , Stephane Régnier , James A. McLaughlin

A set of co-aligned high resolution images from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) is used to investigate propagating disturbances (PDs) in warm fan loops at the periphery of a non-flaring…

Solar and Stellar Astrophysics · Physics 2015-06-17 Vadim M. Uritsky , Joseph M. Davila , Nicholeen M. Viall , Leon Ofman

The signatures of energy release and energy transport for a kink-unstable coronal flux rope are investigated via forward modelling. Synthetic intensity and Doppler maps are generated from a 3D numerical simulation. The CHIANTI database is…

Solar and Stellar Astrophysics · Physics 2017-06-21 Ben Snow , Gert J. J. Botha , Stephane Regnier , Richard J. Morton , Erwin Verwichte , Peter R Young