The research finding of Quanhao Zhang from University of Science and Technology of China has been selected as “Highlight on Young Scientists” by the Scientific Committee on Solar Terrestrial Physics (SCOSTEP)
Quanhao Zhang is an associate professor at the University of Science and Technology of China. Recently, Quanhao Zhang's research finding on the flux feeding mechanism of solar eruptions has been picked by the Scientific Committee on Solar Terrestrial Physics (SCOSTEP) as the "Highlight on Young Scientists" in the latest SCOSTEP/PRESTO Newsletter.
SCOSTEP was established in 1966, which is one of the most respected and well known global academic organizations in the fields of solar physics and space physics. Every quarter, SCOSTEP chooses several research findings accomplished by young scientists as "Highlight on Young Scientists" and publishes them in the SCOSTEP/PRESTO Newsletter.
Large-scale solar eruptions are the major disturbance affecting the solar-terrestrial system. Since coronal magnetic flux ropes are generally considered to be the core structure of solar eruptions, it has great signiﬁcance to study the eruptive mechanism of coronal flux ropes.
In observational studies, it is found that flux feeding processes could be intimately associated with the onset of solar eruptions. By numerical simulations, Quanhao Zhang investigates the influence of flux feeding on coronal flux ropes, and finds that flux feeding injects magnetic flux into the coronal magnetic flux rope, resulting in the accumulation of magnetic flux within the rope; if the critical magnetic flux of the rope is reached, the eruption is triggered. This scenario is called the flux feeding mechanism of coronal flux rope eruptions, which provides a new systematic theoretical model for the initiation of solar eruptions.
The figure below illustrates the simulation results of coronal flux rope eruptions caused by flux feeding processes.
List of the SCOSTEP/PRESTO Newsletter：
【1】Zhang, Quanhao*, Liu, Rui, et al. (2021), “How flux feeding causes eruptions of solar magnetic flux ropes with the hyperbolic flux tube configuration”, Astronomy and Astrophysics, 647, A171, doi: https://doi.org/10.1051/0004-6361/202039944
【2】Zhang, Quanhao*, Wang, Yuming, et al. (2020), “Eruption of Solar Magnetic Flux Ropes Caused by Flux Feeding”, The Astrophysical Journal, 898, L12, doi: https://doi.org/10.3847/2041-8213/aba1f3
【3】Zhang, Quanhao, Liu, Rui*, et al. (2014), “A prominence eruption driven by flux feeding from chromospheric fibrils”, The Astrophysical Journal, 789, 133, doi: https://doi.org/10.1088/0004-637X/789/2/133