Results 21 to 30 of about 1,129,035 (260)

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

INCREASES IN SCR ENERGETIC PROTON FLUXES ON EARTH AND THEIR RELATION TO SOLAR SOURCES

open access: yesSolar-Terrestrial Physics, 2020
Logachev catalog data for solar cycle 23 has been used to study the dependence of measured increases in solar cosmic rays (SCRs) on solar perturbations. The efficiency of recording the SCR increases, driven by proton acceleration in the corona, on Earth ...
L.L. Lazutin
doaj   +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

Solar flares at submillimeter wavelengths [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2013
We discuss the implications of the first systematic observations of solar flares at submillimeter wavelengths, defined here as observing wavelengths shorter than 3 mm (frequencies higher than 0.1 THz). The events observed thus far show that this wave band requires a new understanding of high-energy processes in solar flares.
Alexander L. MacKinnon   +13 more
openaire   +5 more sources

Detection of Solar Neutrons and Solar Neutron Decay Protons

open access: yesUniverse, 2023
Solar flares are broadly classified as impulsive or gradual. Ions accelerated in a gradual flare are thought to be accelerated through a shock acceleration mechanism, but the particle acceleration process in an impulsive flare is still largely unexplored.
Yasushi Muraki   +14 more
doaj   +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

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

Solar Flares [PDF]

open access: yesInternational Astronomical Union Colloquium, 1995
AbstractThere are many types of solar flare, but the classic type is a two-ribbon flare with three phases — a preflare phase, a rise phase and a main phase. The properties of these phases are described, together with some recent observational advances in understanding the conditions for solar flares.
openaire   +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

Home - About - Disclaimer - Privacy