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Related papers: Solar Spicules, Filigrees and Solar Wind Switchbac…

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Recent studies suggest that the magnetic switchbacks (SBs) detected by the Parker Solar Probe (PSP) carry information on the scales of solar supergranulation (large scale) and granulation (medium scale). We test this claim using…

Solar and Stellar Astrophysics · Physics 2025-07-18 Jeongwoo Lee , Vasyl Yurchyshyn , Haimin Wang , Xu Yang , Wenda Cao , Juan Carlos Martinez Oliveros

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…

Solar and Stellar Astrophysics · Physics 2025-01-22 Nina Bizien , Clara Froment , Maria S. Madjarska , Thierry Dudok de Wit , Marco Velli

Many solar coronal jets result from erupting miniature-filament ("minifilament") magnetic flux ropes that reconnect with encountered surrounding far-reaching field. Many of those minifilament flux ropes are apparently built and triggered to…

Solar and Stellar Astrophysics · Physics 2020-12-09 Alphonse C. Sterling , Ronald L. Moore , Navdeep K. Panesar , Tanmoy Samanta

The Parker Solar Probe (PSP) has observed copious rapid magnetic field direction changes in the near-Sun solar wind. These features have been called "switchbacks," and their origin is a mystery. But their widespread nature suggests that…

Solar and Stellar Astrophysics · Physics 2020-06-24 Alphonse C. Sterling , Ronald L. Moore

Microstreams are fluctuations in the solar wind speed and density associated with polarity-reversing folds in the magnetic field (also denoted switchbacks). Despite their long heritage, the origin of these microstreams/switchbacks remains…

Solar winds originate from the Sun and can be classified as fast or slow. Fast solar winds come from coronal holes at the solar poles, while slow solar winds may originate from the equatorial region or streamers. Spicules are jet-like…

Solar and Stellar Astrophysics · Physics 2024-12-25 R. Sadeghi , E. Tavabi

Spicules are rapidly evolving fine-scale jets of magnetized plasma in the solar chromosphere. It remains unclear how these prevalent jets originate from the solar surface and what role they play in heating the solar atmosphere. Using the…

Switchbacks are rapid magnetic field reversals that last from seconds to hours. Current Parker Solar Probe (PSP) observations pose many open questions in regard to the nature of switchbacks. For example, are they stable as they propagate…

Parker Solar Probe (PSP) data recorded within a heliocentric radial distance of 0.3 AU have revealed a magnetic field dominated by Alfv\'enic structures that undergo large local variations or even reversals of the radial magnetic field.…

Magnetic switchbacks are fluctuations in the solar wind in which the interplanetary magnetic field sharply deflects away from its background direction so as to create folds in magnetic field lines while remaining of roughly constant…

Parker Solar Probe (PSP) has shown that the solar wind in the inner heliosphere is characterized by the quasi omni-presence of magnetic switchbacks ("switchback" hereinafter), local backward-bends of magnetic field lines. Switchbacks also…

The solar chromosphere contains thin, highly dynamic strands of plasma known as spicules. Recently, it has been suggested that the smallest and fastest (Type II) spicules are identical to intermittent jets observed by the Interface Region…

Solar and Stellar Astrophysics · Physics 2015-10-14 Steven R. Cranmer , Lauren N. Woolsey

The Parker Solar Probe (PSP) mission has revealed frequent occurrences of switchbacks (SBs) and small-scale magnetic flux ropes (SMFRs) as prominent structures within the solar wind. These mesoscale features are observed across all…

Solar and Stellar Astrophysics · Physics 2025-07-02 Kyung-Eun Choi , Oleksiy V. Agapitov , Dae-Young Lee , Forrest Mozer , Jia Huang , Lucas Colomban , Jaye L. Verniero , Nour Raouafi

Switchbacks are Aflv\'enic fluctuations in the solar wind, which exhibit large rotations in the magnetic field direction. Observations from Parker Solar Probe's (PSP's) first two solar encounters have formed the basis for many of the…

Space Physics · Physics 2022-09-14 R. Laker , T. S. Horbury , L. Matteini , S. D. Bale , J. E. Stawarz , L. D. Woodham , T. Woolley

The S-shaped magnetic structure in the solar wind formed by the twisting of magnetic field lines is called a switchback, whose main characteristics are the reversal of the magnetic field and the significant increase in the solar wind radial…

Solar and Stellar Astrophysics · Physics 2022-01-21 Mingming Meng , Ying D. Liu , Chong Chen , Rui Wang

Parker Solar Probe (PSP) observations during its first encounter at 35.7 $R_\odot$ have shown the presence of magnetic field lines which are strongly perturbed to the point that they produce local inversions of the radial magnetic field,…

Jets, whatever small (e.g. spicules) or large (e.g. macrospicules) their size, may play a key role in momentum and energy transport from photosphere to chromosphere and at least to the low corona. Here, we investigate the properties of…

Solar and Stellar Astrophysics · Physics 2017-06-02 T. S. Kiss , N. Gyenge , R. Erdelyi

Understanding the dynamic solar chromosphere is fundamental in solar physics. Spicules are an important feature of the chromosphere, connecting the photosphere to the corona, potentially mediating the transfer of energy and mass. The aim of…

Solar and Stellar Astrophysics · Physics 2015-06-11 Tiago M. D. Pereira , Bart De Pontieu , Mats Carlsson

Spicules are small hairy like structures seen at the solar limb mainly at chromospheric and transition region lines. They generally live for 3-10 minutes. We observe these spicules in a south polar region of the Sun with a coordinated…

Solar and Stellar Astrophysics · Physics 2015-12-16 Tanmoy Samanta , Vaibhav Pant , Dipankar Banerjee
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