Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Georgoulis, Manolis"'
Autor:
Francisco, Grégoire, Ramunno, Francesco Pio, Georgoulis, Manolis K., Fernandes, João, Barata, Teresa, Del Moro, Dario
The solar magnetized corona is responsible for various manifestations with a space weather impact, such as flares, coronal mass ejections (CMEs) and, naturally, the solar wind. Modeling the corona's dynamics and evolution is therefore critical for im
Externí odkaz:
http://arxiv.org/abs/2410.20843
Autor:
Biswal, Shreeyesh, Korsós, Marianna B., Georgoulis, Manolis K., Nindos, Alexander, Patsourakos, Spiros, Erdélyi, Robertus
The R-value is a measure of the strength of photospheric magnetic Polarity Inversion Lines (PILs) in Active Regions (ARs). This work investigates the possibility of a relation between R-value variations and the occurrence of X-class flares in ARs, no
Externí odkaz:
http://arxiv.org/abs/2408.04018
We estimate the near-Sun axial magnetic field of a coronal mass ejection (CME) on 10 March 2022. Solar Orbiter's in situ measurements, 7.8 degrees east of the Sun-Earth line at 0.43 AU, provided a unique vantage point, along with the WIND measurement
Externí odkaz:
http://arxiv.org/abs/2408.01142
Autor:
Ramunno, Francesco Pio, Jeong, Hyun-Jin, Hackstein, Stefan, Csillaghy, André, Voloshynovskiy, Svyatoslav, Georgoulis, Manolis K.
Investigating the solar magnetic field is crucial to understand the physical processes in the solar interior as well as their effects on the interplanetary environment. We introduce a novel method to predict the evolution of the solar line-of-sight (
Externí odkaz:
http://arxiv.org/abs/2407.11659
Sigmoids produce strong eruptive events. Earlier studies have shown that the ICME axial magnetic field Bz can be predicted with some credibility by observing the corresponding filament or the polarity inversion line in the region of eruption and deri
Externí odkaz:
http://arxiv.org/abs/2403.17075
This paper presents a post hoc analysis of a deep learning-based full-disk solar flare prediction model. We used hourly full-disk line-of-sight magnetogram images and selected binary prediction mode to predict the occurrence of $\geq$M1.0-class flare
Externí odkaz:
http://arxiv.org/abs/2308.02682
Autor:
Liu, Yang, Welsch, Brian T., Valori, Gherardo, Georgoulis, Manolis K., Guo, Yang, Pariat, Etienne, Park, Sung-Hong, Thalmann, Julia K.
Magnetic free energy powers solar flares and coronal mass ejections (CMEs), and the buildup of magnetic helicity might play a role in the development of unstable structures that subsequently erupt. To better understand the roles of energy and helicit
Externí odkaz:
http://arxiv.org/abs/2211.09990
Solar flare prediction is a central problem in space weather forecasting and has captivated the attention of a wide spectrum of researchers due to recent advances in both remote sensing as well as machine learning and deep learning approaches. The ex
Externí odkaz:
http://arxiv.org/abs/2209.07406
We present a catalog of solar energetic particle (SEP) events covering solar cycles 22, 23 and 24. We correlate and integrate three existing catalogs based on Geostationary Operational Environmental Satellite (GOES) integral proton flux data. We visu
Externí odkaz:
http://arxiv.org/abs/2204.12021
Autor:
Samara, Evangelia, Magdalenic, Jasmina, Rodriguez, Luciano, Heinemann, Stephan G., Georgoulis, Manolis K., Hofmeister, Stefan J., Poedts, Stefaan
Publikováno v:
A&A 662, A68 (2022)
It has long been known that the high-speed stream (HSS) peak velocity at Earth directly depends on the area of the coronal hole (CH) on the Sun. Different degrees of association between the two parameters have been shown by many authors. In this stud
Externí odkaz:
http://arxiv.org/abs/2204.00368