Results 21 to 30 of about 1,152,990 (233)

Dynamics of Late-stage Reconnection in the 2017 September 10 Solar Flare [PDF]

open access: yesAstrophysical Journal, 2020
In this multi-instrument paper, we search for evidence of sustained magnetic reconnection far beyond the impulsive phase of the X8.2-class solar flare on 2017 September 10.
R. French   +4 more
semanticscholar   +1 more source

DeepSun: machine-learning-as-a-service for solar flare prediction [PDF]

open access: yesResearch in Astronomy and Astrophysics, 2020
Solar flare prediction plays an important role in understanding and forecasting space weather. The main goal of the Helioseismic and Magnetic Imager (HMI), one of the instruments on NASA’s Solar Dynamics Observatory, is to study the origin of solar ...
Yasser Abduallah   +4 more
semanticscholar   +1 more source

Invited Review: Short-term Variability with the Observations from the Helioseismic and Magnetic Imager (HMI) Onboard the Solar Dynamics Observatory (SDO): Insights into Flare Magnetism

open access: yesSolar Physics, 2022
Continuous vector magnetic-field measurements by the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO) allow us to study magnetic-field properties of many flares.
M. Kazachenko   +3 more
semanticscholar   +1 more source

Solar Flare Prediction Using Magnetic Field Diagnostics above the Photosphere [PDF]

open access: yesAstrophysical Journal, 2020
In this article, we present the application of the weighted horizontal gradient of magnetic field (WGM) flare prediction method to three-dimensional (3D) extrapolated magnetic configurations of 13 flaring solar active regions (ARs).
M. Korsós   +13 more
semanticscholar   +1 more source

Decay of the coronal magnetic field can release sufficient energy to power a solar flare

open access: yesScience, 2020
Magnetic energy release in a solar flare Solar flares are bright flashes and associated eruptions of plasma from the Sun that are thought to be powered by violent rearrangement of the magnetic fields near sunspots. Fleishman et al.
G. Fleishman   +5 more
semanticscholar   +1 more source

A Comparison of Flare Forecasting Methods. II. Benchmarks, Metrics, and Performance Results for Operational Solar Flare Forecasting Systems [PDF]

open access: yesAstrophysical Journal Supplement Series, 2019
Solar flares are extremely energetic phenomena in our solar system. Their impulsive and often drastic radiative increases, particularly at short wavelengths, bring immediate impacts that motivate solar physics and space weather research to understand ...
K. Leka   +23 more
semanticscholar   +1 more source

Geomagnetic solar flare effects: a review

open access: yesJournal of Space Weather and Space Climate, 2020
Solar flare effects (Sfe) are rapid variations in the Earth’s magnetic field and are related to the enhancement of the amount of radiation produced during Solar flare events.
J. Curto
semanticscholar   +1 more source

Unprecedented Fine Structure of a Solar Flare Revealed by the 1.6 m New Solar Telescope. [PDF]

open access: yesSci Rep, 2016
Solar flares signify the sudden release of magnetic energy and are sources of so called space weather. The fine structures (below 500 km) of flares are rarely observed and are accessible to only a few instruments world-wide.
Jing J   +5 more
europepmc   +3 more sources

A Comparison of Flare Forecasting Methods. III. Systematic Behaviors of Operational Solar Flare Forecasting Systems [PDF]

open access: yesAstrophysical Journal, 2019
A workshop was recently held at Nagoya University (2017 October 31–November 2), sponsored by the Center for International Collaborative Research, at the Institute for Space-Earth Environmental Research, Nagoya University, Japan, to quantitatively compare
K. Leka   +23 more
semanticscholar   +1 more source

Deep Flare Net (DeFN) Model for Solar Flare Prediction [PDF]

open access: yes, 2018
We developed a solar flare prediction model using a deep neural network (DNN) named Deep Flare Net (DeFN). This model can calculate the probability of flares occurring in the following 24 hr in each active region, which is used to determine the most ...
N. Nishizuka   +4 more
semanticscholar   +1 more source

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