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Signatures of Magnetic Flux Ropes in the Low Solar Atmosphere Observed in High Resolution

open access: yesFrontiers in Astronomy and Space Sciences, 2019
Magnetic flux ropes (MFRs) are important physical features closely related to solar eruptive activities with potential space weather consequences. Studying MFRs in the low solar atmosphere can shed light on their origin and subsequent magnetic structural
Haimin Wang   +3 more
doaj   +1 more source

Solar Physics From Unconventional Viewpoints

open access: yesFrontiers in Astronomy and Space Sciences, 2018
We explore new opportunities for solar physics that could be realized by future missions providing sustained observations from vantage points away from the Sun-Earth line.
Sarah E. Gibson   +8 more
doaj   +1 more source

Intrastriatal Grafting of Chromospheres: Survival and Functional Effects in the 6-OHDA Rat Model of Parkinson's Disease. [PDF]

open access: yesPLoS ONE, 2016
Cell replacement therapy in Parkinson's disease (PD) aims at re-establishing dopamine neurotransmission in the striatum by grafting dopamine-releasing cells. Chromaffin cell (CC) grafts produce some transitory improvements of functional motor deficits in
Alejandra Boronat-García   +4 more
doaj   +1 more source

Chromospheric Heating from Local Magnetic Growth and Ambipolar Diffusion under Nonequilibrium Conditions

open access: yesThe Astrophysical Journal Letters, 2023
The heating of the chromosphere in internetwork regions remains one of the foremost open questions in solar physics. In the present study, we tackle this old problem by using a very-high-spatial-resolution simulation of quiet-Sun conditions performed ...
Juan Martínez-Sykora   +5 more
doaj   +1 more source

Propagating and Stationary Bright Knots in the Quiet Sun

open access: yesThe Astrophysical Journal Letters, 2022
The question of what heats the solar chromosphere and corona remains one of the most important puzzles in solar physics and astrophysics. Up to now, two mechanisms are considered to work in heating the chromosphere and corona: magnetic reconnection and ...
Jun Zhang   +9 more
doaj   +1 more source

Turbulence and Its Potential Impact on Solar Chromospheric and Coronal Heating

open access: yesThe Astrophysical Journal
Low-frequency turbulence in the solar chromosphere remains poorly understood. We address (1) the sources of low-frequency turbulence that potentially heat the chromosphere, and (2) how turbulence is transported and dissipated throughout the chromosphere ...
G. P. Zank   +10 more
doaj   +1 more source

Preferential Appearance of Hα Moreton Waves along Photospheric Magnetic Network Boundaries

open access: yesThe Astrophysical Journal Letters
Moreton waves are rare chromospheric signatures of large-scale coronal disturbances, often associated with big flares and coronal mass ejections. Using high-cadence, full-disk H α spectroscopic observations from Chinese H α Solar Explorer, together with ...
C. H. Zhai   +3 more
doaj   +1 more source

Numerical Experiment on the Influence of Granulation-induced Waves on Solar Chromosphere Heating and Plasma Outflows in a Magnetic Arcade

open access: yesThe Astrophysical Journal
This paper offers a fresh perspective on solar chromosphere heating and plasma outflows, focusing on the contribution of waves generated by solar granulation.
M. Kumar   +5 more
doaj   +1 more source

Effect of Magnetic Diffusion in the Chromosphere on the Solar Wind

open access: yesThe Astrophysical Journal
We investigate nonideal magnetohydrodynamical (MHD) effects in the chromosphere on the solar wind by performing MHD simulations for Alfvén-wave-driven winds, explicitly including ohmic and ambipolar diffusion.
Masato Matsuoka   +3 more
doaj   +1 more source

A single frequency approach to nonequilibrium modeling of the chromosphere

open access: yesAstronomy & Astrophysics
Context. The solar chromosphere is a region where radiation plays a critical role in energy transfer and interacts strongly with the plasma. In this layer, strong spectral lines, such as the Lyman lines, contribute significantly to radiative energy ...
Ruan W.   +3 more
doaj   +1 more source

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