2010/07/16 by Hongqi Zhang, Shangbin Yang, Yu Gao +4 · 17 citations
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Astrophysics #Atmosphere (unit) #Chiral anomaly #Chirality (physics) #Geomagnetism and Paleomagnetism Studies #Helicity #Ionosphere and magnetosphere dynamics #Magnetic field #Magnetic helicity #Magnetohydrodynamics #Meteorology #Particle physics #Physics #Scale (ratio) #Solar and Space Plasma Dynamics #Solar atmosphere #astro-ph.SR
paper · pdf · doi:10.1088/0004-637x/719/2/1955
published in The Astrophysical Journal 719(2), 1955-1963 (IOP Publishing)
arxiv created 2010/07/16 · openalex publication_date 2010/08/04 · arxiv updated 2015/05/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/08
The magnetic chirality in the solar atmosphere has been studied based on soft X-ray and magnetic field observations. It is found that some of the large-scale twisted soft X-ray loop systems occur for several months in the solar atmosphere, before the disappearance of the corresponding background large-scale magnetic field. This paper provides observational evidence of the helicity of the large-scale magnetic field in the solar atmosphere and the reverse one relative to the helicity rule in both hemispheres with solar cycles. The transfer of the magnetic helicity from the subatmosphere is consistent with the formation of large-scale twisted soft X-ray loops in both the solar hemispheres.