Results 21 to 30 of about 51,199 (257)

Global response of Magnetic field and Ionosonde observations to intense solar flares on 6 and 10 September 2017

E3S Web of Conferences, 2018
Intense X-ray fluxes during solar flares are known to cause enhanced ionization in the Earth’s ionospheric D, E and F region. This sudden change of ionospheric electron density profile is serious problem to radio wave communication and navigation system.
Fujimoto Akiko, Yoshikawa Akimasa, Ikeda Akihiro   +2 more
doaj   +1 more source

Deep Learning–based Solar Flare Forecasting Model. III. Extracting Precursors from EUV Images

The Astrophysical Journal Supplement Series, 2023
A solar flare is one of the most intense solar activities, and flare forecasting is necessary to avoid its destructive impact on the near-Earth space environment and technological infrastructure.
Dezhi Sun, Xin Huang, Zhongrui Zhao, Long Xu   +3 more
doaj   +1 more source

A Study of Solar Flare Effects on the Geomagnetic Field Components during Solar Cycles 23 and 24

Atmosphere, 2021
In this paper, we investigated the impact of solar flares on the horizontal (H), eastward (Y) and vertical (Z) components of the geomagnetic field during solar cycles 23 and 24 (SC23/24) using data of magnetometer measurements on the sunlit side of the ...
Oswald Didier Franck Grodji, Vafi Doumbia, Paul Obiakara Amaechi, Christine Amory-Mazaudier, Kouassi N’guessan, Kassamba Abdel Aziz Diaby, Tuo Zie, Kouadio Boka   +7 more
doaj   +1 more source

Analysis of Solar-like X-class Flare on Wolf 359 Observed Simultaneously with TESS and XMM-Newton

The Astrophysical Journal, 2023
We present an analysis of a flare on the Wolf 359 star based on simultaneous observations of Transiting Exoplanet Survey Satellite and XMM-Newton. A stellar flare with energy comparable to an X-class solar flare is analyzed on this star for the first ...
M. Pietras, R. Falewicz, M. Siarkowski, A. Kepa, K. Bicz, P. Preś   +5 more
doaj   +1 more source

Solar Flares and Coronal Mass Ejections: A Statistically Determined Flare Flux-CME Mass Correlation [PDF]

, 2010
In an effort to examine the relationship between flare flux and corresponding CME mass, we temporally and spatially correlate all X-ray flares and CMEs in the LASCO and GOES archives from 1996 to 2006.
A. Mahrous, A. N. Aarnio, A. Nindos, A. Vourlidas, B. Haisch, B.E. Wood, B.J. LaBonte, D.F. Webb, F. Reale, G. Peres, H. Miura, J. Chen, J.T. Gosling, K. G. Stassun, M. Dryer, M. Massi, M.B. Skelly, M.D. Andrews, M.D. Andrews, N. Gopalswamy, O.C. St. Cyr, R.A. Harrison, R.A. Harrison, R.H. Munro, S. L. McGregor, S. Yashiro, W. J. Hughes, W.H. Press, Y.J. Moon, Z. Švestka   +29 more
core   +1 more source

Forecasting the Remaining Duration of an Ongoing Solar Flare

Space Weather, 2021
The solar X‐ray irradiance is significantly heightened during the course of a solar flare, which can cause radio blackouts due to ionization of the atoms in the ionosphere.
Jeffrey W. Reep, Will T. Barnes
doaj   +1 more source

Multi‐Source Forecast of Solar Cycle Flare Activity Using the Novel Informer‐Based Models

Space Weather
Solar flares, the significant indicators of solar activity, have an impact on Earth's satellites and communication systems. Accurate prediction of solar flare events is crucial for mitigating these effects.
Jie Cao, Tingting Xu, Linhua Deng, Miao Wan, Xinhua Zhao, Yang Peng, Xueliang Zhou, Wenhua Wang, Lidong Huang, Wencheng Wang, Lei Yang, Weihong Zhou   +11 more
doaj   +1 more source

Regularized energy-dependent solar flare hard x-ray spectral index

, 2005
The deduction from solar flare X-ray photon spectroscopic data of the energy dependent model-independent spectral index is considered as an inverse problem.
A. A. Korchak, A. M. Massone, A. N. Tikhonov, Alexander L. Mackinnon, C. Johns, C. W. Groetsch, D. M. Smith, E. P. Kontar, E. P. Kontar, E. P. Kontar, E. P. Kontar, Eduard P. Kontar, G. D. Holman, H. A. Kramers, J. A. Miller, J. C. Brown, J. C. Brown, J. C. Brown, J. C. Brown, L. Fletcher, M. Aschwanden, M. Hanke, M. Piana, R. P. Lin, R. P. Lin, R. P. Lin, S. R. Kane, T. Bai, V. Petrosian   +28 more
core   +2 more sources

Why Autonomous Vehicles Are Not Ready Yet: A Multi‐Disciplinary Review of Problems, Attempted Solutions, and Future Directions

Journal of Field Robotics, EarlyView.
ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong, Massimiliano Cappuccio, Fady Alnajjar, Luqman Ali, Hamad Al Jassmi, Essam Debie, Milad Ghasrikhouzani, Alessandro Lanteri, Tate McGregor, Oleksandra Molloy, Alice Plebe, Michael Regan, Eduardo Sandoval, Dongmo Zhang   +13 more
wiley   +1 more source

No Evidence Supporting Flare Driven High-Frequency Global Oscillations

, 2012
The underlying physics that generates the excitations in the global low-frequency, < 5.3 mHz, solar acoustic power spectrum is a well known process that is attributed to solar convection; However, a definitive explanation as to what causes excitations in
A. Ambastha, A.C. Donea, A.G. Kosovichev, A.G. Kosovichev, A.G. Kosovichev, B. Kumar, B. Kumar, B. Kumar, B. Kumar, C. Karoff, C.L. Wolff, D.A. Haber, D.C. Braun, F. Hill, F. Hill, J.R. Kennedy, J.R. Kennedy, K. G. Stassun, M. Richardson, R. Howe, R.W. Komm, S. Chakraborty, T. Foglizzo, V.G. Gavryusev   +23 more
core   +1 more source