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相关论文: Micro-Sigmoids as Progenitors of Polar Coronal Jet…

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Observations from the X-ray telescope (XRT) on Hinode are used to study the nature of X-ray bright points, sources of coronal jets. Several jet events in the coronal holes are found to erupt from small-scale, S-shaped bright regions. This…

太阳与恒星天体物理 · 物理学 2015-05-19 N. -E. Raouafi , M. K. Georgoulis , D. M. Rust , P. N. Bernasconi

Small-scale jet-like eruptions, such as picoflare jets and jetlets, are recognized as potential contributors to coronal heating and solar wind acceleration, yet their physical origin is still not fully established. Using…

太阳与恒星天体物理 · 物理学 2026-02-23 Annu Bura , Daniel Nóbrega-Siverio , Tanmoy Samanta , Jayant Joshi

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…

Observations from the Hinode/XRT telescope and STEREO/SECCHI/EUVI are utilized to study polar coronal jets and plumes. The study focuses on the temporal evolution of both structures and their relationship. The data sample, spanning April…

天体物理学 · 物理学 2009-11-13 N. -E. Raouafi , G. J. D. Petrie , A. A. Norton , C. J. Henney , S. K. Solanki

Coronal jets are ubiquitous, collimated million-degree ejections that contribute to the energy and mass supply of the upper solar atmosphere and the solar wind. Solar Orbiter provides an unprecedented opportunity to observe fine-scale jets…

太阳与恒星天体物理 · 物理学 2025-10-22 D. Nóbrega-Siverio , R. Joshi , E. Sola-Viladesau , D. Berghmans , D. Lim

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

A set of 23 observations of coronal jet events that occurred in coronal bright points has been analyzed. The focus was on the temporal evolution of the mean brightness before and during coronal jet events. In the absolute majority of the…

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

We examine a sampling of 23 polar-coronal-hole jets. We first identified the jets in soft X-ray (SXR) images from the X-ray telescope (XRT) on the Hinode spacecraft, over 2014-2016. During this period, frequently the polar holes were small…

We examine in greater detail five events previously identified as being sources of strong transient coronal outflows in a solar polar region in Hinode/EUV Imaging Spectrometer (EIS) Doppler data. Although relatively compact or faint and…

太阳与恒星天体物理 · 物理学 2022-11-30 Alphonse C. Sterling , Conrad Schwanitz , Louise K. Harra , Nour E. Raouafi , Navdeep K. Panesar , Ronald L. Moore

Coronal jets and bright points occur prolifically in predominantly unipolar magnetic regions, such as coronal holes, where they appear above minority-polarity intrusions. Intermittent low-level reconnection and explosive,…

太阳与恒星天体物理 · 物理学 2018-09-19 Peter F. Wyper , C. Richard DeVore , Judy T. Karpen , Spiro K. Antiochos , Anthony R. Yeates

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

Coronal Jets are transitory small-scale eruptions omnipresent in solar observations. Active regions jets produce significant perturbations on the ambient solar atmosphere and are believed to be generated by microflare reconnection. Multiple…

太阳与恒星天体物理 · 物理学 2019-03-13 Alin Razvan Paraschiv , Alina Donea

Coronal jets are transient, collimated eruptions that occur in regions of predominantly open magnetic field in the solar corona. Our understanding of these events has greatly evolved in recent years but several open questions, such as the…

太阳与恒星天体物理 · 物理学 2015-12-01 T. Torok , R. Lionello , V. S. Titov , J. E. Leake , Z. Mikic , J. A. Linker , M. G. Linton

The target of this work is to investigate the physical nature of polar jets in the solar corona and their possible contribution to coronal heating and solar wind flow based on the analysis of X-ray images acquired by the Hinode XRT…

太阳与恒星天体物理 · 物理学 2016-10-31 A. R. Paraschiv , A. Bemporad , A. C. Sterling

Solar X-ray jets are evidently made by a burst of reconnection of closed magnetic field in a jet's base with ambient "open" field (1,2). In the widely-accepted version of the "emerging-flux" model, that reconnection occurs at a current…

太阳与恒星天体物理 · 物理学 2017-05-10 Alphonse C. Sterling , Ronald L. Moore , David A. Falconer , Mitzi Adams

The origin of large-amplitude magnetic field deflections in the solar wind, known as magnetic switchbacks, is still under debate. These structures, which are ubiquitous in the observations made by Parker Solar Probe, likely have their seed…

太阳与恒星天体物理 · 物理学 2025-01-22 Nina Bizien , Clara Froment , Maria S. Madjarska , Thierry Dudok de Wit , Marco Velli

Transient collimated plasma eruptions in the solar corona, commonly known as coronal (or X-ray) jets, are among the most interesting manifestations of solar activity. It has been suggested that these events contribute to the mass and energy…

太阳与恒星天体物理 · 物理学 2017-08-09 R. Lionello , T. TÖrÖk , V. S. Titov , J. E. Leake , Z. MikiĆ , J. A. Linker , M. G. Linton

Small, impulsive jets commonly occur throughout the solar corona, but are especially visible in coronal holes. Evidence is mounting that jets are part of a continuum of eruptions that extends to much larger coronal mass ejections and…

太阳与恒星天体物理 · 物理学 2018-02-28 Pankaj Kumar , Judith T. Karpen , Spiro K. Antiochos , Peter F. Wyper , C. Richard DeVore , Craig E. DeForest

Solar coronal jets have been observed in detail since the early 1990s. While it is clear that these jets are magnetically driven, the details of the driving process has recently been updated. Previously it was suspected that the jets were a…

太阳与恒星天体物理 · 物理学 2019-12-06 Alphonse C. Sterling
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