Chinese researchers have made a breakthrough in the study of solar streaks

2022-05-22 0 By

Xinhua News Agency Hefei February 18 (reporter Zhou Chang)17, reporters learned from anhui university, the school of physics and optoelectronic engineering college professor zhang team cooperation with national astronomical observatory, Chinese Academy of Sciences, associate researcher Hou Yijun etc, for the first time to found the sun color ball fiber filaments provide material and magnetic flux observation evidence, filaments source of flux in the sun and material supply important breakthrough on the research.The solar dark strip is a kind of plasma structure which exists widely in the solar atmosphere. It is suspended in the chromosphere and corona and has the characteristics of low temperature and high density.The sun’s dark streaks are closely related to violent events on the Sun (flares, coronal mass ejections, etc.), and dark streaks are one of the most important solar events that affect space weather.The formation and evolution of dark strips has always been a hot topic in solar physics, and the systematic study of them is also an urgent need for national science and technology activities such as aeronautics and astronautics.In the field of dark strip research, the formation of dark strip is a key and unsolved problem.The formation of dark strips needs to be considered from two aspects: the formation of magnetic field structure and material supply.Based on observational data, Zhang’s team and collaborators have discovered new patterns of dark stripe magnetic fields and material supply.The two groups of chromosphere fibers rooted in the antidemagnetization structure are close to each other, and there is weak brightening and magnetic reconnection.Then a long new fiber forms, moves toward the strip, and eventually merges with the strip.These observations reveal that the material and magnetic flux of the dark strip can be provided by nearby chromosphere fibers.The study was published in a letter in astronomy and Astrophysics.