Results 21 to 30 of about 546 (232)
Sunspot groups at high latitude [PDF]
Monthly Notices of the Royal Astronomical Society, 2000 Data of sunspot groups at high latitude (greater than or equal to 35 degrees), from the year 1874 to the present (2000 January), are collected to show their evolutional behaviour and to investigate features of the yearly number of sunspot groups at high latitude.
L. Kejun +4 more
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The Contribution of Large Recurrent Sunspot Groups to Solar Activity: Empirical Evidence
Universe, 2022 We identify large sunspot nestlets (SN) mostly containing recurrent sunspot groups and investigate the indices of solar activity defined as the 11- or 22-year moving average of the daily areas of the SN. These nestlets, 667 in total, are constructed from
Alexander Shapoval
doaj +1 more source
Sunspot Count Periodicities in Different Zurich Sunspot Group Classes Since 1986 [PDF]
Solar Physics, 2014 Accepted Solar Physics ...
Kilcik, A. +3 more
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Solar flare forecasting using morphological properties of sunspot groups
Journal of Space Weather and Space Climate, 2019 We describe a new tool developed for solar flare forecasting on the base of some sunspot group properties. Assuming that the flare frequency follows the Poisson statistics, this tool uses a database containing the morphological characteristics of the ...
Falco Mariachiara +2 more
doaj +1 more source
ON FLARE PREDICTABILITY BASED ON SUNSPOT GROUP EVOLUTION [PDF]
The Astrophysical Journal, 2015 The forecast method introduced by Korsós et al.(2014) is generalised from the horizontal magnetic gradient (GM), defined between two opposite polarity spots, to all spots within an appropriately defined region close to the magnetic neutral line of an active region.
M. B. Korsós +3 more
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Molecular and Cellular Hallmarks of Age‐Related Vestibular Hair Cell Degeneration
Advanced Science, EarlyView.This study utilizes single‐cell RNA‐seq transcriptomes, advanced imaging, and electrophysiology to examine universal and cell‐type‐specific aging signatures of vestibular hair cells. The study shows that impaired hair bundle function is a key driver of age‐related vestibular dysfunction.
Samadhi Kulasooriya +10 more
wiley +1 more source
The Astrophysical Journal LettersSeveral recurrent X-class flares from Active Region (AR) 13664 triggered a severe G5-class geomagnetic storm between 2024 May 10 and 11. The morphology and compactness of this AR closely resemble the AR responsible for the famous Carrington Event of 1859.
P. Romano +3 more
doaj +1 more source
Sunspots sketches during the solar eclipses of 9th January and 29th December of 1777 in Mexico
Journal of Space Weather and Space Climate, 2017 Two sunspot observations recorded by the Mexican Felipe de Zúñiga y Ontiveros have been revealed from a manuscript. One sunspot group was recorded on 9th January 1777 and four sunspot groups on 29th December 1777.
Domínguez-Castro Fernando +2 more
doaj +1 more source
The Supergranular Pattern and the Stable Stages of Sunspot Groups [PDF]
Symposium - International Astronomical Union, 1968 Assuming the sunspot area to evolve smoothly and the sunspot-group lifetime distribution to be a monotonous decreasing function one can easily conclude that the function N(S), determining the number of sunspot groups having the area S at this moment, must increase monotonously and smoothly with decreasing area S.
M. G. Dmitrieva +2 more
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Potential of Nanoparticle‐Based Phototherapies for Future Treatment of Uveal Melanoma
Advanced Science, EarlyView.This review evaluates nanoparticle‐based phototherapies for uveal melanoma, highlighting emerging strategies to enhance tumor targeting, light delivery, and treatment precision. Preclinical data indicate improved efficacy and reduced toxicity, supporting their potential to enhance localized treatment and future translational advances. (Generated by the
Emilie Lambert +8 more
wiley +1 more source