Chromospheric evaporation
WebThese observations suggest that magnetic reconnection can not only form the magnetic field structure of the filament but also heat the chromospheric footpoints during their formation and drive chromospheric evaporation. Web2 days ago · While the SXR emission generally lags behind the NUV as expected from the chromospheric evaporation flare models, the Neupert effect is more prevalent in larger, more impulsive flares. Preliminary flaring rate analysis with X-ray and U-band data suggests that previously estimated energy ratios hold for a collection of flares observed over the ...
Chromospheric evaporation
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WebWe investigate the occurrence of slipping magnetic reconnection, chromospheric evaporation, and coronal loop dynamics in the 2014 September 10 X-class flare. … WebApr 11, 2024 · One is based on the evaporation process during the flare, which can transport the chromospheric fractionated plasma very quickly to the corona in the decay phase of the flares. The other scenario is based on the evaporation process as well as the flare-driven Alfvén waves.
WebNov 20, 2010 · Chromospheric evaporation refers to dynamic mass motions in flare loops as a result of rapid energy deposition in the chromosphere. These have been observed as blueshifts in X-ray and extreme ... WebJun 15, 2015 · The chromospheric evaporation calculation in the enthalpy flux dominant regime could reproduce the strong redshift at the base of the flare during the impulsive …
WebWith observations of the Interface Region Imaging Spectrograph (IRIS), we study chromospheric heating and evaporation during an M1.6 flare SOL2015-03-12T11:50. At the flare ribbons, the Mg ii 2791.59 Å line shows quasi-periodic short-duration red-wing enhancement, which is likely related to repetitive chromospheric condensation as a … WebAug 3, 2016 · Chromospheric evaporation is an important process in flare dynamics and has been extensively investigated. Explosive chromospheric evaporations in two-ribbon flares have been observed and reported (e.g., Czaykowska et al. 1999; Battaglia et al. 2015; Graham & Cauzzi 2015; Li et al. 2015b; Tian et al. 2015).
WebAug 1, 2015 · Chromospheric evaporation was examined in great detail by Fisher et al., who described a distinction between two different regimes, termed explosive and gentle evaporation. In this work, we examine the importance of electron energy and stopping depths on the two regimes and on the atmospheric response. We find that with explosive …
WebJul 13, 2024 · Here and below, the p-rocesses that result in heating dense (usually chromospheric) plasmas, which then fill coronal loops (that is the “chromospheric evaporation”), are called chr-omospheric effects (an increase in ЕМ, where ЕМ = n 2 V). china hepa air filterWebOct 15, 2015 · We have studied the chromospheric evaporation flow during the impulsive phase of the flare by using the Hinode/EUV Imaging Spectrometer observation and 1D … graham norton irish rowerschina henan floodWebHudson and Ohki (1972) pointed out that the increase of the soft X-ray emission measure during flares might be accounted for in two different ways, either by 'coronal condensation', or by what they termed 'chromospheric rarefaction', now more commonly called 'chromospheric evaporation'. china henan provinceWebJan 13, 2024 · Correspondingly, the Fe XXI 1354 line reveals two episodes of chromospheric evaporation, which is characterized as a smooth decrease of the blue … graham norton kevin baconWebOct 9, 2024 · Heated chromospheric material will expand upward into the (smaller density) corona, filling loops that appear as hot, dense, thermal flare structures visible at EUV and soft X-ray wavelengths. This process, first described by Neupert , has become known as "chromospheric evaporation" (see reviews by Bornmann 1999 and Fletcher et al. 2011). graham norton last weekWeb故障现象：一辆HFC6500A1彩色之旅瑞风商务车因组合仪表内照明灯以及示宽灯常亮来我公司报修。此车装配4GA1 2．4L电控汽油发动机，采用手动变速器，已行驶83000km。 china hepa filter air cleaner