Julia R Clark,W Dean Pesnell,Matthew C Barzal
Julia R Clark
Polar faculae are footprints of the polar magnetic field that are visible as bright spots along intergranular lanes. Unlike equatorial faculae and sunspots, which are found at low to moderate solar latitudes and peak in number at solar maxi...
The Behaviour of the EUV Corona Before Flares in Regions with High Free Magnetic Energy [0.03%]
在具有高自由磁能的活动区耀斑前极紫外日冕的行为研究
Louise Harra,Kanya Kusano,Yingjie Zhu et al.
Louise Harra et al.
Understanding and predicting the trigger of solar flares has been an area of focus for many years. In this work, we analyze EUV coronal data from SDO/AIA and Solar Orbiter EUI EUV High Resolution Imager (HRIEUV) to determine whether regions...
SSTrack: An Automatic Sunspot Identification and Tracking Algorithm to Support the Measurement of Sunspot Rotation [0.03%]
SSTrack：一种自动日斑识别和追踪算法以支持测量日斑旋转
Charlotte Proverbs,Daniel Brown
Charlotte Proverbs
Motions of sunspots cause the coronal magnetic field to become deformed with the effect that energy can be stored in the coronal magnetic field. This energy can be released through events such as solar flares. Sunspots are known to rotate a...
Nat Gopalswamy,Pertti Mäkelä,Seiji Yashiro et al.
Nat Gopalswamy et al.
We investigated the occurrence rate of the sustained gamma ray emission (SGRE) events from the Sun using data obtained by the Large Area Telescope (LAT) on board the Fermi satellite since its launch in 2008. The data cover the whole of sola...
The EUV Late-Phase: Statistical Results from 15 Years of Solar Dynamics Observatory Observations [0.03%]
基于太阳动力学观测卫星15年观测结果的极紫外晚相统计研究
Harry J Greatorex,Aisling N O&#x;Hare,Susanna Bekker et al.
Harry J Greatorex et al.
Since its launch in 2010, the Solar Dynamics Observatory (SDO) has provided continuous, high-cadence, multi-wavelength observations of the Sun, capturing thousands of solar flares and offering new insights into coronal dynamics. Among the d...
Investigating the Relationship Between Physical Properties and Spatial Irregularities at Coronal Hole Boundaries [0.03%]
日冕洞边界的物理性质与空间不规则性的关系研究
Nawin Ngampoopun,David M Long,Lucie M Green et al.
Nawin Ngampoopun et al.
Coronal hole boundaries are the interfaces between closed and open magnetic field regions in the solar atmosphere. Many fundamental processes take place at these regions, including magnetic reconnection that is responsible for solar wind re...
A Geomagnetic Estimate of Heliospheric Modulation Potential over the Last 175 Years [0.03%]
基于地磁的太阳风调制势过去175年的重建结果
Mathew J Owens,Luke A Barnard,Raimund Muscheler et al.
Mathew J Owens et al.
Galactic cosmic rays (GCRs) interact with the Earth's atmosphere to produce energetic neutrons and cosmogenic radionuclides, such as 14C. The atmosphere is partially shielded from the interstellar GCR spectrum by both the geomagnetic and so...
Evolution of Open Magnetic Flux and Heliospheric Current Sheet-Associated Streamer Wind Across Multiple Solar Cycles [0.03%]
多个太阳活动周期的日冕开放磁通量和太阳风绳状流的演变规律研究
Jackson R MacTaggart,Liang Zhao,Susan T Lepri et al.
Jackson R MacTaggart et al.
With the advent of Ulysses measurements during the solar minima of Solar Cycles 23 and 24, the heliospheric magnetic field and the solar wind were observed to behave much differently than expected. In particular, previous studies showed tha...
Revealing Flare Energetics and Dynamics with SDO EVE Solar Extreme Ultraviolet Spectral Irradiance Observations [0.03%]
基于SDO/EVE观测的太阳极紫外光谱辐射能量及动力学研究
Thomas N Woods,Phillip C Chamberlin,Andrew Jones et al.
Thomas N Woods et al.
NASA's Solar Dynamics Observatory (SDO) Extreme-ultraviolet Variability Experiment (EVE) has been making solar full-disk extreme ultraviolet (EUV) spectral measurements since 2010 over the spectral range of 6 nm to 106 nm with 0.1 nm spectr...
Oscillatory Dynamics and Energy Transport in Twisted Magnetic Flux Tubes of the Solar Photosphere [0.03%]
太阳光球层扭曲磁通管中的振荡动力学和能量传输
Adel S Alanezy,Suzana S A Silva,Istvan Ballai et al.
Adel S Alanezy et al.
We investigate the oscillatory behaviour of the footpoints of twisted magnetic flux tubes in the solar photosphere. We identify the dominant magnetohydrodynamic (MHD) wave modes present in these waveguides and assess their role in energy tr...