Chunlan Jin

Quasiperiodic Fast-propagating Waves Driven by the Tuning-fork Effect during Magnetic Reconnection

Jialiang Hu, Xiaozhou Zhao, Guiping Zhou, Yuhao Chen et autres

Abstract Through three-dimensional MHD simulations, we have uncovered a kind of fast coronal wave originating from both ends of a current sheet (CS) during a solar eruption. These waves are observed to appear near the top and bottom ends of the reconnection-related …

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Variations of the Vector Magnetic Structures in the Solar Polar Regions Observed by Hinode

Shuhong Yang, Chunlan Jin, Qiao Song, Yuzong Zhang et autres

Abstract Using the polar vector magnetic field data observed by Hinode from 2012 to 2021, we study the long-term variations of the magnetic flux, the flux proportion of different polarities, and the magnetic inclination with respect to the local normal in the …

Magnetic Field Characteristics of Moving Magnetic Features during the Sunspot Decay from the Whole Sunspot to Pore

Yang Peng, Zhike Xue, Chunlan Jin, Jihong Liu et autres

Abstract To understand the relationship between moving magnetic features (MMFs) and the decay of the sunspot, we studied the complete decays of four α-type sunspots based on data from the Solar Dynamics Observatory/Helioseismic and Magnetic Imager, focusing on the magnetic properties of …

A Possible Source of Multiple Polarity Reversals of the Polar Magnetic Field during the Maximum Phase of Solar Cycle

Chunlan Jin, Shuhong Yang, Guiping Zhou, Jialiang Hu et autres

Abstract During the maximum phase of solar activity, it is quite common for the polar magnetic field to undergo multiple polarity reversals. In this study, we aim to provide the likely source of this phenomenon. By analyzing synoptic magnetograms from the Michelson …

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Probing Solar Polar Regions

Yuanyong Deng, Hui Tian, Jie Jiang, Shuhong Yang et autres

The magnetic fields and dynamical processes in the solar polar regions play a crucial role in the solar magnetic cycle and in supplying mass and energy to the fast solar wind, ultimately being vital in controlling solar activities and driving space weather. …

Atmospheric Heating Events Associated with Fine-scale Flux Emergence in Ephemeral Regions

Hanlin Yang, Jingxiu Wang, Chunlan Jin

Abstract Coronal heating has puzzled solar physicists for decades. The question of why the Sun’s upper atmosphere is significantly hotter than its lower atmosphere remains a key mystery. It is commonly believed that the source of coronal heating comes from the Sun’s …

Atmospheric Heating Events Associated with Fine-scale Flux Emergence in Ephemeral Regions

Hanlin Yang, Jingxiu Wang, Chunlan Jin

Coronal heating has puzzled solar physicists for decades. The question of why the Sun's upper atmosphere is significantly hotter than its lower atmosphere remains a key mystery. It is commonly believed that the source of coronal heating comes from the Sun's magnetic …

Meso-scale photospheric convection during chromospheric fan-shaped surge on light bridge

Yuzong Zhang, Jun Zhang, Wenda Cao, Shuhong Yang et autres

Recently, intermittent and aperiodic fan-shaped chromospheric surges have attracted significant attention, though their related photospheric dynamic signals remain unclear. This study examines seven such surges and their potential photospheric signals along a light bridge (LB) in NOAA AR 12371 over a period …

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Probing Solar Polar Regions

Yuanyong Deng, Hui Tian, Jie Jiang, Shuhong Yang et autres

The magnetic fields and dynamical processes in the solar polar regions play a crucial role in the solar magnetic cycle and in supplying mass and energy to the fast solar wind, ultimately being vital in controlling solar activities and driving space weather. …

cn (code pays fourni par la source)

Are There Local Dynamos Acting in Sunspot Regions?

Chunlan Jin, Guiping Zhou, Haisheng Ji, Jingxiu Wang

Abstract In solar physics, a long-unanswered question is whether or not there are local dynamos acting in sunspot regions. Here we report an observed pattern of magnetic evolution that makes the sunspots alive with ample complexity and energy. This anomalous pattern manifests …

Effects of OsLPR2 Gene Knockout on Rice Growth, Development, and Salt Stress Tolerance

Ying Gu, Chunhua Fu, Miao Zhang, Chunlan Jin et autres

Rice (Oryza sativa L.), a globally staple food crop, frequently encounters growth, developmental, and yield limitations due to phosphate deficiency. LOW PHOSPHATE ROOT1/2 (LPR1/2) are essential genes in plants that regulate primary root growth and respond to local phosphate deficiency signals under …

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Unraveling the untwisting process and upward mass transfer of a twisted prominence driven by vortex motion

Xiao-Li Zhang, Guanqun Zhou, Chunlan Jin, Y. Z. Zhang et autres

Solar filaments/prominences are common features in the Sun's atmosphere that contain cool chromospheric material suspended within the hot corona. However, the intricate topology of these structures and the mechanisms driving their instability and upward material transfer are not well understood. This study …