Workflow
磁重联
icon
Search documents
井上望远镜拍到最清晰太阳耀斑图像,揭示日冕回路微观结构
Ke Ji Ri Bao· 2025-08-28 08:57
Core Insights - The Daniel K. Inouye Solar Telescope has captured the clearest images of solar flares to date at H-α wavelength (656.28 nm), marking a significant advancement in solar observation [1][2] - The telescope recorded numerous dark coronal loops during an X1.3-class flare, with an average width of 48.2 kilometers and a minimum width of 21 kilometers, setting a record for the narrowest coronal loops observed [1] - This breakthrough allows scientists to directly study the fundamental processes driving flares, such as magnetic reconnection, which were previously only theorized [1] Group 1 - The Inouye Telescope's observations provide a direct view of coronal loops, which are plasma arcs along solar magnetic field lines, often appearing before flares [1] - The ability to observe these structures at such a fine scale enables researchers to investigate the core mechanisms behind flare occurrences [1][2] - The imagery produced by the telescope is described as stunning, with dark filamentous loops resembling a glowing archway, allowing even non-experts to appreciate the complexity and beauty of solar phenomena [2] Group 2 - The previous theoretical predictions suggested that the width of these loops could range from 10 kilometers to 100 kilometers, but direct observation was hindered by resolution limitations [1] - The Inouye Telescope's capability to capture these details represents a leap forward in solar physics, providing insights that were previously confined to theoretical models [1] - The findings may have implications for understanding solar storms and their potential impact on Earth's critical infrastructure [1]
井上望远镜拍到最清晰太阳耀斑图像 揭示日冕回路微观结构
Huan Qiu Wang Zi Xun· 2025-08-27 11:02
Core Insights - The Daniel K. Inouye Solar Telescope has captured the clearest images of solar flares to date at H-α wavelength (656.28 nm), marking a significant advancement in solar observation [1] - The telescope recorded numerous dark coronal loops during the decay phase of an X1.3-class flare, with an average width of 48.2 kilometers and a minimum width of 21 kilometers, setting a record for the narrowest coronal loops observed [1] - This breakthrough allows scientists to directly study the fundamental processes driving flares, such as magnetic reconnection, which were previously only theorized [1] Group 1 - The dark filamentous loops observed may represent the basic components of solar flares, enabling a clearer understanding of magnetic arc bundles and individual loops [2] - The images captured by the telescope depict stunning structures, with dark loops arching and a clearly defined triangular bright area at the center, showcasing the complexity and grandeur of solar phenomena [2] - Researchers assert that humanity has finally reached the essence of the solar coronal loop structure, enhancing the understanding of solar dynamics [2]
“帕克”观测到太阳大气磁重联现象
Ke Ji Ri Bao· 2025-08-26 04:35
Core Insights - The Parker Solar Probe has achieved the first direct observation of magnetic reconnection in the solar atmosphere, confirming a theory proposed 70 years ago, which enhances the ability to predict solar storms [1][2] - Magnetic reconnection is a process where magnetic field lines break and reconnect, releasing significant magnetic energy, which can lead to solar flares and coronal mass ejections [1] - The successful observation was made possible by the Parker Solar Probe's close approach to the Sun and collaboration with the European Space Agency's solar orbiter [1][2] Group 1 - The Parker Solar Probe, launched in 2018, is the only spacecraft capable of entering the solar upper atmosphere for direct measurements [1] - The probe captured a significant solar eruption on September 6, 2022, allowing for high-resolution imaging and sampling of plasma and magnetic field characteristics [1] - This breakthrough enables scientists to better understand the mechanisms of solar energy transfer and particle acceleration, improving the accuracy of solar activity predictions [2]
太阳“磁场舞蹈”之谜揭开
Ke Ji Ri Bao· 2025-08-07 09:20
Core Insights - The research team from the Yunnan Astronomical Observatory has revealed the physical mechanism of oscillatory magnetic reconnection in the solar atmosphere, providing a new theoretical model for understanding the periodic variations of solar activities such as solar flares and coronal mass ejections [1][2] Group 1: Research Findings - The study utilized 2.5D radiative magnetohydrodynamic simulations to reconstruct the process of magnetic flux ropes rising from the convection zone to the atmosphere and reconnecting with the background magnetic field [1] - The simulations indicated that the direction of the current sheet exhibits quasi-periodic reversals, with reversal periods concentrated between 8 to 15 minutes, and the longest reaching 30 minutes, aligning closely with observational data [1] - The research identified that the convection and turbulence in the solar convection zone are key drivers of the oscillatory behavior of magnetic reconnection [2] Group 2: Implications for Solar Activity - The study proposes a new mechanism for oscillatory magnetic reconnection by coupling the dynamics of the convection zone with coronal magnetic reconnection, addressing previous discrepancies between simulation periods and observations [2] - The periodic fluctuations in the magnetic reconnection rate, ranging from 100 to 400 seconds, correlate with the oscillation periods of solar acoustic waves, suggesting a deep connection between internal solar motions and atmospheric activities [2] - This research enhances the understanding of solar activity's periodic pulsations, which could lead to more accurate predictions of solar storms' impacts on Earth [2]
SpaceX:TRACERS任务升空。
news flash· 2025-07-23 18:28
Core Insights - The TRACERS mission aims to study magnetic reconnection around Earth to understand how the Sun interacts with Earth's protective magnetic shield, the magnetosphere [2] Group 1 - The mission focuses on the interaction between solar activity and Earth's magnetosphere [2] - TRACERS will provide insights into the mechanisms of magnetic reconnection [2] - Understanding these interactions is crucial for comprehending space weather impacts on Earth [2]