2014
DOI: 10.1088/0004-637x/795/2/140
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Abstract: The heating of the solar corona is a longstanding mystery in astrophysics. Considering that the solar magnetic field is spatially inhomogeneous with a considerable magnetic gradient from the solar surface to the corona, this work proposes a magnetic gradient pumping (MGP) mechanism to try to explain the formation of hot plasma upflows, such as hot type II spicules and hot plasma ejections. In the MGP mechanism, the magnetic gradient may drive the energetic particles to move upward from the underlying solar atm… Show more

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Cited by 11 publications
(9 citation statements)
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References 59 publications
(67 reference statements)
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“…The existence of Alfven waves is worthy of further research using detailed phase analysis for these magnetic perturbations. The observations seems also support magnetic gradient pumping (MGP) mechanism (Tan 2014). In the MGP mechanism, the magnetic gradient may drive the energetic particles to move upward from the underlying solar atmosphere and form hot upflows.…”
Section: Discussionsupporting
confidence: 59%
“…The existence of Alfven waves is worthy of further research using detailed phase analysis for these magnetic perturbations. The observations seems also support magnetic gradient pumping (MGP) mechanism (Tan 2014). In the MGP mechanism, the magnetic gradient may drive the energetic particles to move upward from the underlying solar atmosphere and form hot upflows.…”
Section: Discussionsupporting
confidence: 59%
“…Therefore, we find further evidence supporting speculations that radiative to magnetic energy coupling descriptions possibly exhibit a wavelength dependence, particularly as such aligns with the recent numerical simulations of Equation 1 to cool main sequence stars by Alvarado-Gómez et al (2016), for EUV, soft X-ray, and X-ray portions of the spectrum. However, as additionally highlighted above, it can not be ruled out such observations could be suggestive of the presence of an additional plasma 2000); Pevtsov et al (2003) heating component, possibly married to the dominant mechanism (e.g., Tan 2014;Uritsky & Davila 2014).…”
Section: Magnetic Energy Redistributionmentioning
confidence: 95%
“…Therefore, there are magnetic gradients (∇B) in such plasma loops, and the direction of the gradient is always downward, as seen in Figure 1. According to the MGP mechanism [20,21], the upward magnetic-gradient force (F m = −µ∇B, here µ = 1 2 mv 2 t B is the magnetic moment) will drive energetic particles to move upward and form an energetic upflow in the plasma loop, extracting the energetic particles and kinetic energy from both footpoints of the loop and conveying and transporting them to accumulate around the looptop. At the same time, the deficit of energetic particles near both footpoints can be replenished by the convection motion of the hot plasmas in the solar interior.…”
Section: Transport and Accumulate Areas Of Coronal Plasma Loopsmentioning
confidence: 99%
“…Universe 2021, 7, 378 2 of 13 (2020) applied the magnetic-gradient pumping (MGP) mechanism [20] to demonstrate the evolution of flaring plasma loops [21]: the magnetic-gradient force may drive energetic particle upflow, which carries and conveys kinetic energy from the lower solar atmosphere with strong magnetic field to move upwards, accumulate and increase the temperature and plasma pressure around a looptop with relatively weak magnetic fields, produce plasma ballooning instability, and finally, trigger magnetic reconnection and the following violent flaring eruption.…”
Section: Introductionmentioning
confidence: 99%