Results 121 to 130 of about 1,700,755 (212)

Impacts of Extreme Ultraviolet Late Phase of the Solar Flare on Ionospheric Electrodynamics

The Astrophysical Journal Letters
Previous investigations of ionospheric electrodynamical responses to solar flares primarily focused on the main phases (MPs) of solar flares. Typical solar irradiance models for driving global ionosphere models do not include the extreme ultraviolet (EUV)
Xuanqing Liu, Jing Liu, Junjie Chen, Liying Qian, Phillip C. Chamberlin, Yao Chen, Xiangliang Kong, Shuhan Li   +7 more
doaj   +1 more source

Data-driven Simulation of Effects of a Solar Flare with Extreme-ultraviolet Late Phase on Ionospheric Electron Density

The Astrophysical Journal
Effects of the extreme-ultraviolet (EUV) late phase of solar flares on the ionosphere were rarely studied. Here we simulated such effects on the ionospheric electron density using an ionosphere−thermosphere coupled model driven by the realistic solar ...
Xuanqing Liu, Liying Qian, Phillip C. Chamberlin, Yao Chen, Xiangliang Kong, Qing-He Zhang, Shuhan Li, Jing Liu   +7 more
doaj   +1 more source

Solar Flare Ion Temperatures

The Astrophysical Journal Letters
This Letter proposes that the ion temperature is several times the local electron temperature in the hot onset phase and in the above-the-loop region of solar flares.
Alexander J. B. Russell, Vanessa Polito, Paola Testa, Bart De Pontieu, Sergey A. Belov   +4 more
doaj   +1 more source

The 'equilibrium' anisotropy in the flux of 10 MeV solar flare particles and their convection in the solar wind [PDF]

, 1969
Equilibrium anisotropy in flux solar flare particles calculated from particle spectra and solar wind ...
Forman, M. A.
core  

Sun-as-a-star Analysis of the Solar Eruption Source Region Using Hα Spectroscopic Observations of CHASE

The Astrophysical Journal
Sun-as-a-star analyses serve as a bridge for comparative studies on solar and stellar activities. To investigate the typical Sun-as-a-star H α temporal spectral characteristics in solar eruption source regions, we analyzed five different types of solar ...
Xiaofeng Liu, Yijun Hou, Ying Li, Ye Qiu, Ting Li, Yingjie Cai, Shihao Rao, Junyi Zhang, Chuan Li   +8 more
doaj   +1 more source

A New Methodology for Inferring the Plasma Conditions in Solar Flare Energetic Electron Source Regions from In Situ Electron Energy Spectra

The Astrophysical Journal Supplement Series
The conditions within solar flares that lead to efficient electron acceleration are not well constrained. It is not clear whether the populations accelerated out into the heliosphere and inward into the chromosphere originate in the same regions.
Samuel Carter, Natasha L. S. Jeffrey, Robert T. Wicks, Georgios Nicolaou   +3 more
doaj   +1 more source

Deep-Learning-Based Solar Flare Prediction Model: The Influence of the Magnetic Field Height

Solar flares, caused by magnetic field reconnection in the sun’s atmosphere, are intense bursts of electromagnetic radiation that can disrupt the Earth’s space environment, affecting communication systems, GPSs, and satellites.
Long Xu, Lei Hu, Zhongqin Chen, Xin Huang   +3 more
core   +1 more source

Solar Doppler Velocity Results from the SDO EVE Level 4 Lines Data Product. [PDF]

Sol Phys
Woods TN, Chamberlin PC, Crotser D, Jones A, Borelli R, Woodraska D, Gonzalez G.   +6 more
europepmc   +1 more source

SUNSPOT dan FLARE Adakah hubungannya?

, 1980
RINGKASAN:Ukuran aktif tidaknya Matahari paling mudah diamati dengan menentukan bilangan sunspot. Ada ukuran lainnya yaitu frekwensi terjadinya flare.. Karena flare menimbulkan gangguan pada ionosfir yang menjadi lapisan pemantul gelom-bang radio, lebih ...
Maspul Aini
core  

In-Flight Self-Calibration of the STIX Grid Transmission. [PDF]

Sol Phys
Massa P, Volpara A, Stiefel MZ, Bilgili E, Degen M, Limousin O, Hurford GJ, Krucker S.   +7 more
europepmc   +1 more source