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相关论文: Eruptions from quiet Sun coronal bright points. I.…

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Minifilament (MF) eruption producing small jets and micro-flares is regarded as an important source for coronal heating and the solar wind transients through studies mostly based on coronal observations in the extreme ultraviolet (EUV) and…

太阳与恒星天体物理 · 物理学 2024-02-14 Jiasheng Wang , Jeongwoo Lee , Jongchul Chae , Yan Xu , Wenda Cao , Haimin Wang

The opening-up of the magnetic field during solar eruptive events is often accompanied by a dimming of the local coronal emission. From observations of filament eruptions recorded with the Extreme-Ultraviolet Imager on STEREO during…

太阳与恒星天体物理 · 物理学 2011-03-10 Eva Robbrecht , Yi-Ming Wang

On February 12, 2021 two subsequent eruptions occurred above the West limb, as seen along the Sun-Earth line. The first event was a typical slow Coronal Mass Ejection (CME), followed $\sim 7$ hours later by a smaller and collimated…

Decayless kink oscillations of solar coronal loops (or decayless oscillations for short) have attracted great attention since their discovery. Coronal bright points (CBPs) are mini-active regions and consist of loops with a small size.…

太阳与恒星天体物理 · 物理学 2022-05-18 Yuhang Gao , Hui Tian , Tom Van Doorsselaere , Yajie Chen

Coronal dimmings, localized regions of reduced emission in the EUV and soft X-rays, are interpreted as density depletions due to mass loss during the CME expansion. They contain crucial information on the early evolution of CMEs low in the…

太阳与恒星天体物理 · 物理学 2018-08-29 Karin Dissauer , Astrid M. Veronig , Manuela Temmer , Tatiana Podladchikova , Kamalam Vanninathan

Large-scale solar eruptions have been extensively explored over many years. However, the properties of small-scale events with associated shocks have been rarely investigated. We present the analyses of a small-scale short-duration event…

太阳与恒星天体物理 · 物理学 2018-04-04 Beili Ying , Li Feng , Lei Lu , Jie Zhang , Jasmina Magdalenic , Yingna Su , Yang Su , Weiqun Gan

Plasma with a temperature close to the chromospheric one is ejected in solar eruptions. Such plasma can occult some part of emission of compact sources in active regions as well as quiet solar areas. Absorption phenomena can be observed in…

太阳与恒星天体物理 · 物理学 2015-05-20 V. V. Grechnev , I. V. Kuzmenko , I. M. Chertok , A. M. Uralov

Using the observations from the Optical and Near-infrared Solar Eruption Tracer and the Solar Dynamics Observatory, we study an M5.7 flare in AR 11476 on 2012 May 10 and a micro-flare in the quiet Sun on 2017 March 23. Before the onset of…

太阳与恒星天体物理 · 物理学 2018-07-04 Shuhong Yang , Jun Zhang

We investigate the formation times of eruptive magnetic flux ropes relative to the onset of solar eruptions, which is important for constraining models of coronal mass ejection (CME) initiation. We inspected uninterrupted sequences of 131…

太阳与恒星天体物理 · 物理学 2020-10-14 A. Nindos , S. Patsourakos , A. Vourlidas , X. Cheng , J. Zhang

Streamer-blowout coronal mass ejections (SBO-CMEs) are the dominant CME population during solar minimum. Although they are typically slow and lack clear low-coronal signatures, they can cause geomagnetic storms. With the aid of extrapolated…

The solar atmosphere is filled with clusters of hot small-scale loops commonly known as Coronal Bright Points (CBPs). These ubiquitous structures stand out in the Sun by their strong X-ray and/or extreme-ultraviolet (EUV) emission for hours…

太阳与恒星天体物理 · 物理学 2024-06-14 D. Nóbrega-Siverio , F. Moreno-Insertis , K Galsgaard , K. Krikova , L. Rouppe van der Voort , R. Joshi , M. S. Madjarska

Coronal Bright Points (CBPs) are ubiquitous structures in the solar atmosphere composed of hot small-scale loops observed in EUV or X-Rays in the quiet Sun and coronal holes. They are key elements to understand the heating of the corona;…

太阳与恒星天体物理 · 物理学 2022-08-24 D. Nóbrega-Siverio , F. Moreno-Insertis

Minifilaments are widespread small-scale structures in the solar atmosphere. To better understand their formation and eruption mechanisms, we investigate the entire life of a sigmoidal minifilament located below a large quiescent filament…

太阳与恒星天体物理 · 物理学 2024-05-28 Weilin Teng , Yingna Su , Rui Liu , Jialin Chen , Yanjie Liu , Jun Dai , Wenda Cao , Jinhua Shen , Haisheng Ji

Observations of the solar corona with the Large Angle Spectrometric Coronograph (LASCO) and Extreme ultraviolet Imaging Telescope (EIT) instruments on the Solar and Heliospheric Observatory (SOHO) provide an unprecedented opportunity to…

天体物理学 · 物理学 2009-11-06 Prasad Subramanian , K. P. Dere

We study solar energetic particle (SEP) events during multiple solar eruptions. The analysed sequences, on 24-26 November 2000, 9-13 April 2001, and 22-25 August 2005, consisted of halo-type coronal mass ejections (CMEs) that originated…

太阳与恒星天体物理 · 物理学 2015-12-16 Silja Pohjolainen , Firas Al-Hamadani , Eino Valtonen

In this paper, with a survey through the Large Angle and Spectrometric Coronagraph (LASCO) data from 1996 to 2009, we present 11 events with plasma blobs flowing outwards sequentially along a bright coronal ray in the wake of a coronal mass…

太阳与恒星天体物理 · 物理学 2015-05-30 Hong-Qiang Song , Xiang-Liang Kong , Yao Chen , Bo Li , Gang Li , Shi-Wei Feng , Li-Dong Xia

Coronal mass ejections (CMEs) and coronal jets are two of the best-studied forms of solar eruptions, with the same underlying physics. Previous studies have presented partial eruptions producing coronal jets. We report, for the first time,…

太阳与恒星天体物理 · 物理学 2025-08-26 Abril Sahade , Judith Karpen , Spiro Antiochos

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 report two sympathetic solar eruptions, including a partial and a full flux rope eruption in a quadrupolar magnetic region, where a large and a small filament resided above the middle and the east neutral lines respectively. The large…

太阳与恒星天体物理 · 物理学 2015-06-04 Yuandeng Shen , Yu Liu , Jiangtao Su

Solar small scale microwave bursts (SMBs), including microwave dot, spike, and narrow band type III bursts, are characterized with very short timescales, narrow frequency bandwidth, and very high brightness temperatures. Based on…

太阳与恒星天体物理 · 物理学 2015-06-16 Baolin Tan