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- W3100556665 abstract "<p>&#160;It is well-known that there is a gradient, there will drive a flow inevitably. For example, a density-gradient may drive a diffusion flow, an electrical potential-gradient may drive an electric current in plasmas, etc. Then, what flows will be driven when a magnetic-gradient occurs in solar atmospheric plasmas?</p><p>Considering the ubiquitous distribution of magnetic-gradient in solar plasma loops, this work demonstrates that magnetic-gradient pumping (MGP) mechanism is valid even in the partial ionized solar photosphere, chromosphere as well as in the corona. MGP drives energetic particle flows which carry and convey kinetic energy from the underlying atmosphere to move upwards, accumulate around the looptop and increase there temperature and pressure, and finally lead to eruptions around the looptop by triggering ballooning instabilities. This mechanism may explain the evolution of solar plasma loops, the formation of the observing hot cusp-structures above flaring loops in most preflare phases, and the triggering of eruptions in solar plasma loops. Therefore, the magnetic-gradient may play as a natural driver of solar eruptions.</p><p>Furthermore, we may also apply MGP mechanism to understand many other astrophysical phenomena, such as the coronal heating, the temperature distribution above sunspots, the formation of solar plasma jets, type-II spicule, and fast solar wind above coronal holes, as well as the fast plasma jets related to white dwarfs, neutron stars and black holes.</p><p>Additionally, we also proposed to test the above MGP mechanism by using the new generation observations of the broadband spectral radioheliographs, such as MUSER, EVOSA, and SRH, etc.</p>" @default.
- W3100556665 created "2020-11-23" @default.
- W3100556665 creator A5055075702 @default.
- W3100556665 date "2020-03-23" @default.
- W3100556665 modified "2023-09-27" @default.
- W3100556665 title "Magnetic Gradient May Play as a Natural Driver of Solar Eruptions" @default.
- W3100556665 doi "https://doi.org/10.5194/egusphere-egu2020-22259" @default.
- W3100556665 hasPublicationYear "2020" @default.
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