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相关论文: Solar jets observed with the Interface Region Imag…

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We investigate the acceleration source of the impulsive solar energetic particle (SEP) events on 2007 January 24. Combining the in situ electron measurements and remote-sensing solar observations, as well as the calculated magnetic fields…

太阳与恒星天体物理 · 物理学 2013-05-27 C. Li , S. A. Matthews , L. van Driel-Gesztelyi , J. Sun , C. J. Owen

The first spectroscopic observations of cool Mg II loops above the solar limb observed by NASA's Interface Region Imaging Spectrograph ({\it IRIS}; \cite{IRIS}) are presented. During the observation period IRIS is pointed off-limb allowing…

太阳与恒星天体物理 · 物理学 2014-09-02 L. K. Harra , S. A. Matthews , D. M. Long , G. A. Doschek , B. De Pontieu

Spectroscopic observations of a solar limb flare recorded by SUMER on SOHO reveal, for the first time, hot fast magnetic reconnection outflows in the corona. As the reconnection site rises across the SUMER spectrometer slit, significant…

天体物理学 · 物理学 2018-06-19 Tongjiang Wang , Linhui Sui , Jiong Qiu

Spectroscopic observations of prominence eruptions associated with coronal mass ejections (CMEs), although relatively rare, can provide valuable plasma and 3D geometry diagnostics. We report the first observations by the Interface Region…

Triggering mechanisms of solar eruptions have long been a challenge. A few previous case studies have indicated that preceding gentle filament merging via magnetic reconnection may launch following intense eruption, according with the…

太阳与恒星天体物理 · 物理学 2016-02-24 Huadong Chen , Jun Zhang , Leping Li , Suli Ma

Solar flares are transient yet dramatic events in the atmosphere of the Sun, during which a vast amount of magnetic energy is liberated. This energy is subsequently transported through the solar atmosphere or into the heliosphere, and…

太阳与恒星天体物理 · 物理学 2022-12-14 Graham S. Kerr

Studies on small-scale jets' formation, propagation, evolution, and role, such as type I and II spicules, mottles, and fibrils in the lower solar atmosphere's energetic balance, have progressed tremendously thanks to the combination of…

The origin of the slow solar wind is still an open issue. One possibility that has been suggested is that upflows at the edge of an active region can contribute to the slow solar wind. We aim to explain how the plasma upflows are generated,…

High-speed solar wind streams (HSSs) interact with the preceding ambient solar wind to form Stream Interaction Regions (SIRs), which are a primary source of recurrent geomagnetic storms. However, HSSs may also encounter and subsequently…

太阳与恒星天体物理 · 物理学 2024-02-14 Stephan G. Heinemann , Chaitanya Sishtla , Simon Good , Maxime Grandin , Jens Pomoell

The exploration of the inner heliosphere by Parker Solar Probe has revealed a highly structured solar wind with ubiquitous deflections from the Parker spiral, known as switchbacks. Interchange reconnection (IR) may play an important role in…

Plumes are one of the most ubiquitous features seen at the limb in polar coronal holes and are considered to be a source of high density plasma streams to the fast solar wind. We analyze STEREO observations of plumes and aim to reinterpret…

太阳与恒星天体物理 · 物理学 2010-08-31 Scott W. McIntosh , Davina E. Innes , Bart De Pontieu , Robert J. Leamon

The Interface Region Imaging Spectrograph (IRIS) reveals numerous small-scale (sub-arcsecond) brightenings that appear as bright dots sparkling the solar transition region in active regions. Here, we report a statistical study on these…

太阳与恒星天体物理 · 物理学 2018-03-23 Zhenyong Hou , Zhenghua Huang , Lidong Xia , Bo Li , Maria S. Madjarska , Hui Fu

Understanding the physical processes that trigger solar flares is paramount to help with forecasting space weather and mitigating the effects on our technological infrastructure. A previously unknown phenomenon was recently identified in…

We study point-like explosive events (EE), characterized by emission in the far wings of spectral lines, in a quiet region near the South Pole, using Interface Region Imaging Spectrograph (IRIS) spectra at two slit positions, slit-jaw (SJ)…

太阳与恒星天体物理 · 物理学 2023-02-08 C. E. Alissandrakis , J. -C. Vial

In this paper we present a numerical study of plasma jets produced by intense laser matter interactions. Through this study we hope to better understand astrophysical jets and their recent experimental simulations in the laboratory. We paid…

天体物理学 · 物理学 2009-11-07 Akira Mizuta , Shoich Yamada , Hideaki Takabe

We study the interaction of intense ultrashort laser pulses with cryogenic He jets using 2d/3v relativistic Particle-in-Cell simulations (XOOPIC). Of particular interest are laser intensities $(10^{15}-10^{20})$ W/cm$^2$, pulse lengths $\le…

等离子体物理 · 物理学 2017-04-05 M. Shihab , T. Bornath , R. Redmer

A recent study using {\it Hinode} (SOT/FG) data of a sunspot revealed some unusually large penumbral jets that often repeatedly occurred at the same locations in the penumbra, namely at the tail of a penumbral filament or where the tails of…

We use data from the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) to study the most likely formation of a forced reconnection region and associated plasma blobs, triggered by jet-like structures in a…

太阳与恒星天体物理 · 物理学 2025-02-19 Sudheer K. Mishra , A. K. Srivastava , S. P. Rajaguru , P. Jelínek

Observations of Interplanetary Scintillation (IPS) are an efficient remote-sensing method to study the solar wind and inner heliosphere. From 2016 to 2018, some distinctive observations of IPS sources like 3C 286 and 3C 279 were…

空间物理 · 物理学 2021-05-26 Li-Jia Liu , Bo Peng , Lei Yu , Ye-Zhao Yu , Ji-Guang Lu , Bin Liu , O. Chang , M. M. Bisi , FAST Collaboration

We present the multi-point and multi-wavelength observation and analysis on a solar coronal jet and coronal mass ejection (CME) event in this paper. Employing the GCS model, we obtained the real (three-dimensional) heliocentric distance and…

太阳与恒星天体物理 · 物理学 2015-11-20 Jiajia Liu , Yuming Wang , Chenglong Shen , Kai Liu , Zonghao Pan , S. Wang