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相关论文: Statistical study of hard X-ray emitting electrons…

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We present a multi-wavelength analysis of two flare-related jets on November 13, 2014, using data from SDO/AIA, RHESSI, Hinode/XRT, and IRIS. Unlike most coronal jets where hard X-ray (HXR) emissions are usually observed near the jet base,…

太阳与恒星天体物理 · 物理学 2022-07-13 Yixian Zhang , Sophie Musset , Lindsay Glesener , Navdeep Panesar , Gregory Fleishman

We compare the characteristics of flare-accelerated energetic electrons at the Sun with those injected into interplanetary space. We have identified 17 energetic electron events well-observed with the SEPT instrument aboard STEREO which…

太阳与恒星天体物理 · 物理学 2021-10-20 Nina Dresing , A. Warmuth , F. Effenberger , K. -L. Klein , S. Musset , L. Glesener , M. Brüdern

We present a multiwavelength analysis of 20 EUV jets which occurred at the periphery of active regions close to sunspots. We discuss the physical parameters of the jets and their relation with other phenomena such as H alpha surges,…

太阳与恒星天体物理 · 物理学 2016-04-20 Sargam M. Mulay , Durgesh Tripathi , Giulio Del Zanna , Helen Mason

Coronal jets are short-lived eruptive features commonly observed in polar coronal holes and are thought to play a key role in the transfer of mass and energy into the solar corona. We describe unique contemporaneous observations of a…

Based on a sample of 1114 flares observed simultaneously in hard X-rays (HXR) by the BATSE instrument and in soft X-rays (SXR) by GOES, we studied several aspects of the Neupert effect and its interpretation in the frame of the…

天体物理学 · 物理学 2009-11-07 A. Veronig , B. Vrsnak , B. R. Dennis , M. Temmer , A. Hanslmeier , J. Magdalenic

In the standard model of solar eruptive events, coronal mass ejections (CMEs) and flares are associated with each other through magnetic reconnection initiated by erupting flux ropes. Observations also reveal an increasing association ratio…

太阳与恒星天体物理 · 物理学 2025-06-24 Changxue Chen , Yang Su , Wei Chen , Jingwei Li , Fu Yu , Weiqun Gan

Coronal jets are ubiquitous in active regions (ARs) and coronal holes. In this paper, we study a coronal jet related to a C3.4 circular-ribbon flare in active region 12434 on 2015 October 16. Two minifilaments were located under a 3D…

太阳与恒星天体物理 · 物理学 2021-03-17 Q. M. Zhang , Z. H. Huang , Y. J. Hou , D. Li , Z. J. Ning , Z. Wu

{We report our observations of a swirling flare-related EUV jet on 2011 October 15.} {We utilised the EUV observations from SDO/AIA. We extracted a wide slit along the jet axis and 12 thin slits across its axis to investigate the…

太阳与恒星天体物理 · 物理学 2015-06-18 Q. M. Zhang , H. S. Ji

Sudden jets of collimated plasma arise from many locations on the Sun, including active regions. The magnetic field along which a jet emerges is often open to interplanetary space, offering a clear "escape route" for any flare-accelerated…

太阳与恒星天体物理 · 物理学 2018-11-07 Lindsay Glesener , Gregory D. Fleishman

Solar jets are an important field of study, as they may contribute to the mass and energy transfer from the lower to the upper atmosphere. We use the Interface Region Imaging Spectrograph (IRIS) and Solar Dynamic Observatory (SDO)…

太阳与恒星天体物理 · 物理学 2024-10-01 Myrto Koletti , Costis Gontikakis , Spiros Patsourakos , Kanaris Tsinganos

Solar jets are fast-moving, elongated brightenings related to ejections seen in both images and spectra on all scales from barely visible chromospheric jets to coronal jets extending up to a few solar radii. The largest, most powerful jets…

太阳与恒星天体物理 · 物理学 2016-12-07 Davina Innes , Radoslav Bucik , Li-Jia Guo , Nariaki Nitta

Employing the high spatio-temporal Interface Region Imaging Spectrograph 1330 {\AA} observations, we investigated the jet-like features that occurred during the X8.2 class flare in NOAA active region (AR) 12673 on 2017 September 10. These…

太阳与恒星天体物理 · 物理学 2018-12-11 Xiaohong Li , Jun Zhang , Shuhong Yang , Yijun Hou

The timing of 503 solar flares observed simultaneously in hard X-rays, soft X-rays and H-alpha is analyzed. We investigated the start and the peak time differences in different wavelengths, as well as the differences between the end of the…

天体物理学 · 物理学 2015-06-24 A. Veronig , B. Vrsnak , M. Temmer , A. Hanslmeier

Solar energetic particle (SEP) events are related to flares and coronal mass ejections (CMEs). This work is a new investigation of statistical relationships between SEP peak intensities - deka-MeV protons and near-relativistic electrons -…

太阳与恒星天体物理 · 物理学 2014-11-18 G. Trottet , S. Samwel , K. -L. Klein , T. Dudok de Wit , R. Miteva

The energy released during solar flares is believed to be stored in non-potential magnetic fields associated with electric currents flowing in the corona. While no measurements of coronal electric currents are presently available, maps of…

太阳与恒星天体物理 · 物理学 2015-08-19 Sophie Musset , Nicole Vilmer , Véronique Bommier

We study the chromosphere and corona of the ultra-fast rotator AB Dor A at high temporal and spectral resolution using simultaneous observations with XMM-Newton in the X-rays, VLT/UVES in the optical, and the ATCA in the radio. Our optical…

太阳与恒星天体物理 · 物理学 2015-06-17 S. Lalitha , B. Fuhrmeister , U. Wolter , J. H. M. M. Schmitt , D. Engels , M. H. Wieringa

We utilize observations from {\emph{Hinode}}/XRT and the Extreme ultraviolet (EUV) imagers onboard {\emph{STEREO}} to study the relationship between coronal jets and plumes. The data were recorded on Apr. 7-8 and Nov. 2-4, 2007. Detailed…

太阳与恒星天体物理 · 物理学 2009-02-04 Nour-Eddine Raouafi

Recent irradiance measurements from numerous heliophysics and astrophysics missions including SDO, GOES, Kepler, TESS, Chandra, XMM-Newton, and NICER have provided critical input in understanding the physics of the most powerful transient…

太阳与恒星天体物理 · 物理学 2023-09-11 Jeffrey W. Reep , Vladimir S. Airapetian

We analysed Interface-Region Imaging Spectrograph (IRIS) and the Solar Dynamics Observatory/Atmospheric Imaging Assembly (SDO/AIA) observations of a small coronal jet that occurred at the solar west limb on 2014 August 29. The jet source…

太阳与恒星天体物理 · 物理学 2024-05-09 Pradeep Kayshap , Judith T. Karpen , Pankaj Kumar

X-ray observations of solar flares routinely reveal an impulsive high-energy and a gradual low-energy emission component, whose relationship is one of the key issues of solar flare study. The gradual and impulsive emission components are…

太阳与恒星天体物理 · 物理学 2015-05-20 Jingnan Guo , Siming Liu , Lyndsay Fletcher , Eduard P. Kontar
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