AstronomyResearchers observe solar filament formation caused by oscillation magnetic...

Researchers observe solar filament formation caused by oscillation magnetic reconnection

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The method of filament formation. (a)–(f) GONG Hα pictures. The rising filament is marked by the crimson arrows. (g)–(l) The corresponding HMI magnetograms. The brown stable curves symbolize the place of magnetic emergence. The blue line in panel (l) outlines the place of the filament. (m) The evolution of the projected space of the filament. The beginning time was 2020 June 5 at 03:10 UT. The crimson dotted line, pink stable line, and inexperienced stable line symbolize the beginning time of the fabric injection in every time interval, the primary linear progress and the second linear progress, respectively. Credit score: The Astrophysical Journal (2023). DOI: 10.3847/1538-4357/acaa3e

Researchers led by Yan Xiaoli from the Yunnan Observatories of the Chinese language Academy of Sciences, in collaboration with Solar Xia and Liang Hongfei from Yunnan Regular College, have clearly noticed the formation of an intermediate solar filament attributable to small-scale oscillation magnetic reconnection.

The examine was printed in The Astrophysical Journal on Feb. 22.

Magnetic reconnection is a physical process of changing magnetic power into kinetic and thermal energy, which might change the topology of magnetic subject.

Many observational cases of magnetic reconnection have been reported, akin to present sheets, brilliant cusp-shaped constructions, plasma influx/outflow, and so forth. Nonetheless, direct observations of magnetic reconnection resulting in the formation of filament are nonetheless very uncommon.

Utilizing high-resolution information from the 1-meter New Vacuum Photo voltaic Telescope (NVST) on the Fuxian Lake Photo voltaic Observatory, the acute ultraviolet (EUV) information from the Photo voltaic Dynamics Observatory (SDO) and the World Oscillation Community Group (GONG) information, the researchers analyzed the filament formation attributable to small-scale magnetic reconnection that occurred within the lively area 12765 on June 5, 2020.

They discovered that the filament and the encircling magnetic loops have been in close proximity to one another, adopted by magnetic reconnection between them.

“The fashioned present sheets have been virtually comparatively perpendicular present sheets, known as oscillatory reconnection. The plasma was injected into the inside of the filament, resulting in the formation of the filament,” mentioned Yan, corresponding creator of the examine.

Furthermore, the researchers calculated the bodily portions akin to the speed, mass, and kinetic power of the fabric getting into the filament. They discovered that the injected mass from the magnetic reconnection was in step with the estimated mass of the filament.

Extra data:
Xia Solar et al, Formation of an Intermediate Filament Pushed by Small-scale Magnetic Reconnection, The Astrophysical Journal (2023). DOI: 10.3847/1538-4357/acaa3e

Quotation:
Researchers observe solar filament formation attributable to oscillation magnetic reconnection (2023, March 2)
retrieved 4 March 2023
from https://phys.org/information/2023-03-solar-filament-formation-oscillation-magnetic.html

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