中文
相关论文

相关论文: Recurrent Coronal Jets Induced by Repetitively Acc…

200 篇论文

The solar active region photospheric magnetic field evolves rapidly during major eruptive events, suggesting appreciable feedback from the corona. Previous studies of these "magnetic imprints" are mostly based on line-of-sight only or…

太阳与恒星天体物理 · 物理学 2017-04-26 Xudong Sun , J. Todd Hoeksema , Yang Liu , Maria Kazachenko , Ruizhu Chen

We present the first unambiguous detection of quasi-periodic wave trains within the broad pulse of a global EUV wave (so-called "EIT wave") occurring on the limb. These wave trains, running ahead of the lateral CME front of 2-4 times…

太阳与恒星天体物理 · 物理学 2012-08-17 Wei Liu , Leon Ofman , Nariaki V. Nitta , Markus J. Aschwanden , Carolus J. Schrijver , Alan M. Title , Theodore D. Tarbell

We present an observational study of the kinematics and fine structure of an unwinding polar jet, with high temporal and spatial observations taken by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamic Observatory (SDO) and…

太阳与恒星天体物理 · 物理学 2011-06-24 Yuandeng Shen , Yu Liu , Jiangtao Su , Ahmed Ibrahim

We present the results of numerical simulations of wave-induced magnetic reconnection in a model of the solar atmosphere. In the magnetic field geometry we study in this article, the waves, driven by a monochromatic piston and a driver…

太阳与恒星天体物理 · 物理学 2009-08-11 L. Heggland , B. De Pontieu , V. H. Hansteen

Emerging dimming occurs in isolated solar active regions (ARs) during the early stages of magnetic flux emergence. Observed by the Atmospheric Imaging Assembly, it features a rapid decrease in extreme-ultraviolet (EUV) emission in the 171…

太阳与恒星天体物理 · 物理学 2021-05-05 Anna V. Payne , Xudong Sun

In this study, we present the observations of extreme-ultraviolet (EUV) waves associated with an M6.5 flare on 2013 April 11. The event was observed by Solar Dynamics Observatory (SDO) in different EUV channels. The flare was also…

太阳与恒星天体物理 · 物理学 2019-05-22 Aarti Fulara , Ramesh Chandra , P. F. Chen , Ivan Zhelyazkov , A. K. Srivastava , Wahab Uddin

With high-resolution narrowband He I 10830 \r{A} filtergrams from GST, we give an extensive analysis for 4 granular sized microeruptions which appear as the gentle ejection of material in He I 10830 \r{A} band. The analysis was aided with…

太阳与恒星天体物理 · 物理学 2022-04-13 Zhenxiang Hong , Ya Wang , Haisheng Ji

Images from the Solar Dynamics Observatory (SDO) at 211A are used to identify the solar source of the type III radio bursts seen in WIND/WAVES dynamic spectra. We analyse a 2.5 hour period during which six strong bursts are seen. The radio…

太阳与恒星天体物理 · 物理学 2015-05-28 D. E. Innes , R. H. Cameron , S. K. Solanki

Coronal jets represent important manifestations of ubiquitous solar transients, which may be the source of significant mass and energy input to the upper solar atmosphere and the solar wind. While the energy involved in a jet-like event is…

Large-scale propagating fronts are frequently observed during solar eruptions, yet it is open whether they are waves or not, partly because the propagation is modulated by coronal structures, whose magnetic field we still cannot measure.…

太阳与恒星天体物理 · 物理学 2019-01-04 Rui Liu , Yuming Wang , Jeongwoo Lee , Chenglong Shen

In this paper, we report our multiwavelength observations of the vertical oscillation of a coronal cavity on 2011 March 16. The elliptical cavity with an underlying horn-like quiescent prominence was observed by the Atmospheric Imaging…

太阳与恒星天体物理 · 物理学 2018-07-04 Q. M. Zhang , H. S. Ji

We report on the merging between the southern polar coronal hole and an adjacent coronal dimming induced by a coronal mass ejection on 2022 March 18, resulting in the merged region persisting for at least 72 hrs. We use remote sensing data…

太阳与恒星天体物理 · 物理学 2023-06-28 Nawin Ngampoopun , David M. Long , Deborah Baker , Lucie M. Green , Stephanie L. Yardley , Alexander W. James , Andy S. H. To

Coronal jets, which extend from the solar surface to beyond 2 $R_\odot$, were observed in the polar coronal hole regions during the total solar eclipse on 2017 August 21. In a time-series of white-light images of the corona spanning 70…

Velocity structures of jets in a coronal hole have been derived for the first time. Hinode observations revealed the existence of many bright points in coronal holes. They are loop-shaped and sometimes associated with coronal jets. Spectra…

New XRT observations of the north polar region taken from the X-ray Telescope (XRT) of the Hinode (Solar-B) spacecraft are used to analyze several time sequences showing small loop brightenings with a long ray above. We focus on the…

天体物理学 · 物理学 2015-05-13 B. Filippov , L. Golub , S. Koutchmy

Recent observations of coronal hole areas with the XRT and EIS instruments onboard the Hinode satellite have shown with unprecedented detail the launching of fast, hot jets away from the solar surface. In some cases these events coincide…

天体物理学 · 物理学 2009-11-13 F. Moreno-Insertis , K. Galsgaard , I. Ugarte-Urra

Small 3He-rich solar energetic particle (SEP) events with their anomalous abundances, markedly different from solar system, provide evidence for a unique acceleration mechanism that operates routinely near solar active regions. Although the…

太阳与恒星天体物理 · 物理学 2015-12-16 R. Bucik , D. E. Innes , L. Guo , G. M. Mason , M. E. Wiedenbeck

The study of fast, eruptive events in the low solar corona is one of the science objectives of the Atmospheric Imaging Assembly (AIA) imagers on the recently launched Solar Dynamics Observatory (SDO), which take full disk images in ten…

太阳与恒星天体物理 · 物理学 2015-05-20 S. Patsourakos , A. Vourlidas , G. Stenborg

We analyze the structure and evolution of ribbons from the M7.3 SOL2014-04-18T13 flare using ultraviolet (UV) images from IRIS and SDO/AIA, magnetic data from SDO/HMI, hard X-ray (HXR) images from RHESSI, and light curves from Fermi/GBM, in…

太阳与恒星天体物理 · 物理学 2022-03-09 Stephen J. Naus , Jiong Qiu , C. Richard DeVore , Spiro K. Antiochos , Joel T. Dahlin , James F. Drake , Marc Swisdak

We report a spectroscopic analysis of an EIT wave event that occurred in active region 11081 on 2010 June 12 and was associated with an M2.0 class flare. The wave propagated near circularly. The south-eastern part of the wave front passed…

太阳与恒星天体物理 · 物理学 2015-05-28 F. Chen , M. D. Ding , P. F. Chen , L. K. Harra