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相关论文: Temperature Analysis of Flaring (AR11283) and non-…

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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

Extracting the temperature of coronal loops is effective in the analysis of solar active region's loops and helps in better understanding of coronal events. To this end, various methods have already been developed like the method developed…

太阳与恒星天体物理 · 物理学 2019-08-30 Narges Fathalian

Evidence of flare induced, large-amplitude, decay-less transverse oscillations is presented. A system of multi-thermal coronal loops as observed with the Atmospheric Imaging Assembly (AIA), exhibit decay-less transverse oscillations after a…

太阳与恒星天体物理 · 物理学 2021-08-04 Sudip Mandal , Hui Tian , Hardi Peter

We present a first systematic study on the cross-sectional temperature structure of coronal loops using the six coronal temperature filters of the Atmospheric Imaging Assembly (AIA) instrument on the Solar Dynamics Observatory (SDO). We…

太阳与恒星天体物理 · 物理学 2015-05-27 Markus J. Aschwanden , Paul Boerner

Context: One of the most prominent processes suggested to heat the corona to well above 10^6 K builds on nanoflares, short bursts of energy dissipation. Aims: We compare observations to model predictions to test the validity of the…

太阳与恒星天体物理 · 物理学 2015-11-04 Leping Li , Hardi Peter , Feng Chen , Jun Zhang

We aim to study the influence of radiative cooling on the standing kink oscillations of a coronal loop. Using the FLASH code, we solved the 3D ideal magnetohydrodynamic equations. Our model consists of a straight, density enhanced and…

太阳与恒星天体物理 · 物理学 2015-10-30 N. Magyar , T. Van Doorsselaere , A. Marcu

Context. The dynamics of the flaring loops in active region (AR) 11429 are studied. The observed dynamics consist of several evolution stages of the flaring loop system during both the ascending and descending phases of the registered…

Coronal loop oscillations are common phenomena in the solar corona, which are often classified as decaying and decayless oscillations. Using the high-resolution observation measured by the Extreme Ultraviolet Imager (EUI) onboard the Solar…

太阳与恒星天体物理 · 物理学 2023-02-15 Dong Li , David M. Long

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…

Low-frequency longitudinal oscillations of a flaring coronal loop are studied numerically. In the recent work of Nakariakov et al., Astron. and Astrophys., 414, L25-L28 (2004) it has been shown that the time dependences of density and…

天体物理学 · 物理学 2009-11-10 D. Tsiklauri , V. M. Nakariakov , T. D. Arber , M. J. Aschwanden

Context. Transverse oscillations of coronal structures are currently intensively studied to explore the associated magnetohydrodynamic wave physics and perform seismology of the local medium. Aims. We make a first attempt to measure the…

太阳与恒星天体物理 · 物理学 2020-07-01 C. R. Goddard , G. Nisticò

Context: Transverse loop oscillations and loop contractions are commonly associated with solar flares, but the two types of motion have traditionally been regarded as separate phenomena. Aims: We present an observation of coronal loops…

太阳与恒星天体物理 · 物理学 2015-08-26 Alexander J. B. Russell , Paulos J. A. Simoes , Lyndsay Fletcher

Flares are dynamic events which involve rapid changes in coronal magnetic topology end energy release. Even if they may be localized phenomena, the magnetic disturbance at their origin may propagate and be effective in a larger part of the…

太阳与恒星天体物理 · 物理学 2010-10-18 S. Parenti , F. Reale , K. K. Reeves

A detailed analysis of a coronal loop oscillation event is presented, using data from the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) for the first time. The loop oscillation event occurred on 2010 Oct…

太阳与恒星天体物理 · 物理学 2015-05-28 Markus J. Aschwanden , Carolus J. Schrijver

Lim et al. (2023) have recently proposed that the slope ($\delta$) of the power law distribution between the energy flux and oscillation frequency could determine whether high-frequency transverse oscillations give a dominant contribution…

太阳与恒星天体物理 · 物理学 2024-08-28 Daye Lim , Tom Van Doorsselaere , David Berghmans , Elena Petrova

We present a statistical study of 130 solar flares (B to X class) that lack soft X-ray quasi-periodic pulsations and show no kink oscillations of nearby coronal loops visible in SDO/AIA 171~\AA~images. The aim is to investigate whether…

太阳与恒星天体物理 · 物理学 2026-05-13 Zhiyi Li , Valery M. Nakariakov , Ding Yuan , Song Feng

We report for the first time the detection of thermal free-free emission from post-flare loops at 34GHz in images from the Nobeyama Radioheliograph (NoRH). We studied 8 loops, 7 of which were from regions with extremely strong coronal…

太阳与恒星天体物理 · 物理学 2024-06-24 Costas E. Alissandrakis , Gregory D. Fleishman , Viktor V. Fedenev , Stephen M. White , Alexander T. Altyntsev

We perform Differential Emission Measure (DEM) analysis of an M7.7 flare that occurred on 2012 July 19 and was well observed by the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamic Observatory. Using the observational data with…

太阳与恒星天体物理 · 物理学 2015-06-19 J. Q. Sun , X. Cheng , M. D. Ding

Standing long-period (with the periods longer than several minutes) oscillations in large hot (with the temperature higher than 3 MK) coronal loops have been observed as the quasi-periodic modulation of the EUV and microwave intensity…

太阳与恒星天体物理 · 物理学 2016-06-15 Sanjay Kumar , V. M. Nakariakov , Y. -J. Moon

We observe intensity oscillations along coronal fan loops associated with the active region AR 11428. The intensity oscillations were triggered by blast waves which were generated due to X-class flares in the distant active region AR 11429.…

太阳与恒星天体物理 · 物理学 2017-09-20 V. Pant , A. Tiwari , D. Yuan , D. Banerjee
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