Results 61 to 70 of about 1,129,035 (260)

Toward Model Compression for a Deep Learning–Based Solar Flare Forecast on Satellites

open access: yesThe Astrophysical Journal Supplement Series, 2023
Timely solar flare forecasting is challenged by the delay of transmitting vast amounts of data from the satellite to the ground. To avoid this delay, it is expected that forecasting models will be deployed on satellites.
Kai Feng   +4 more
doaj   +1 more source

Evolution of coronal magnetic field parameters during X5.4 solar flare

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The coronal magnetic field over NOAA Active Region 11,429 during a X5.4 solar flare on 7 March 2012 is modeled using optimization based Non-Linear Force-Free Field extrapolation. Specifically, 3D magnetic fields were modeled for 11 timesteps using the 12-
Seth H. Garland   +4 more
doaj   +1 more source

Deep Learning Based Solar Flare Forecasting Model. I. Results for Line-of-sight Magnetograms

open access: yes, 2018
Solar flares originate from the release of the energy stored in the magnetic field of solar active regions, the triggering mechanism for these flares, however, remains unknown.
Xin Huang   +5 more
semanticscholar   +1 more source

Radiation hydrodynamics in solar flares [PDF]

open access: yesInternational Astronomical Union Colloquium, 1986
AbstractSolar flares are currently understood as the explosive release of energy stored in the form of stressed magnetic fields. In many cases, the released energy seems to take the form of large numbers of electrons accelerated to high energies (the nonthermal electron “thick target” model), or alternatively plasma heated to very high temperatures ...
openaire   +4 more sources

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

open access: yesSpace 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   +11 more
doaj   +1 more source

Effects of Solar Proton Events Associated With X-Ray Flares on Near-Earth Electron and Proton Fluxes Based on ZH-1 Satellite Observations

open access: yesFrontiers in Earth Science, 2022
Solar eruptions can cause violent effects on the space environment. Electromagnetic radiation from solar flares will be the first to arrive on the Earth at the speed of light, followed by solar energetic charged particles.
Lu Wang   +11 more
doaj   +1 more source

Spectropolarimetric Inversions of the Ca ii 8542 Å Line in an M-class Solar Flare [PDF]

open access: yesAstrophysical Journal, 2018
We study the M1.9-class solar flare SOL2015-09-27T10:40 UT using high-resolution full Stokes imaging spectropolarimetry of the Ca ii 8542 Å line obtained with the CRISP imaging spectropolarimeter at the Swedish 1-m Solar Telescope.
D. Kuridze   +6 more
semanticscholar   +1 more source

Turbulence, complexity, and solar flares [PDF]

open access: yesAdvances in Space Research, 2010
The issue of predicting solar flares is one of the most fundamental in physics, addressing issues of plasma physics, high-energy physics, and modelling of complex systems. It also poses societal consequences, with our ever-increasing need for accurate space weather forecasts.
Paul A. Conlon   +2 more
openaire   +3 more sources

Insights Into the Light‐Driven Conversion of Methane: Mechanisms, Characterization, and Perspective

open access: yesEcoEnergy, EarlyView.
Methane can be converted into value‐added products, offering a sustainable and economically viable approach to energy and carbon use. Photocatalytic methane conversion under mild conditions is an effective method for activating methane. This review outlines key mechanisms for C–H bond activation, categorizes products from methane conversion, and ...
Jiayi Chen   +3 more
wiley   +1 more source

Global Properties of Solar Flares [PDF]

open access: yesSpace Science Reviews, 2011
This article broadly reviews our knowledge of solar flares. There is a particular focus on their global properties, as opposed to the microphysics such as that needed for magnetic reconnection or particle acceleration as such. Indeed solar flares will always remain in the domain of remote sensing, so we cannot observe the microscales directly and must ...
openaire   +4 more sources

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