Hall-coupling of Slow and Alfvén Waves at Low Frequencies in the Lower Solar Atmosphere
Sign Up to like & getrecommendations! Published in 2019 at "Solar Physics"
DOI: 10.1007/s11207-019-1544-1
Abstract: The Hall effect due to weak ionization in the lower solar atmosphere is shown to produce significant coupling between slow magneto-acoustic and Alfven waves, especially in highly inclined magnetic fields, and even at low frequencies… read more here.
Keywords: alfven waves; lower solar; low frequencies; solar atmosphere ... See more keywords
Solar atmosphere wave dynamics generated by solar global oscillating eigenmodes
Sign Up to like & getrecommendations! Published in 2018 at "Advances in Space Research"
DOI: 10.1016/j.asr.2017.10.053
Abstract: Abstract The solar atmosphere exhibits a diverse range of wave phenomena, where one of the earliest discovered was the five-minute global acoustic oscillation, also referred to as the p -mode. The analysis of wave propagation… read more here.
Keywords: solar atmosphere; model; solar global; atmosphere wave ... See more keywords
Torsional oscillations within a magnetic pore in the solar photosphere
Sign Up to like & getrecommendations! Published in 2021 at "Nature Astronomy"
DOI: 10.1038/s41550-021-01354-8
Abstract: Alfven waves have proven to be important in a range of physical systems due to their ability to transport non-thermal energy over long distances in a magnetized plasma. This property is of specific interest in… read more here.
Keywords: solar atmosphere; solar; magnetic pore; torsional oscillations ... See more keywords
Alfvén wave dissipation in the solar chromosphere
Sign Up to like & getrecommendations! Published in 2018 at "Nature Physics"
DOI: 10.1038/s41567-018-0058-3
Abstract: Magnetohydrodynamic Alfvén waves1 have been a focus of laboratory plasma physics2 and astrophysics3 for over half a century. Their unique nature makes them ideal energy transporters, and while the solar atmosphere provides preferential conditions for… read more here.
Keywords: alfv wave; wave dissipation; dissipation solar; solar atmosphere ... See more keywords
Three-dimensional modeling of the Ca II H and K lines in the solar atmosphere
Sign Up to like & getrecommendations! Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201731926
Abstract: Context. CHROMIS, a new imaging spectrometer at the Swedish 1-m Solar Telescope (SST), can observe the chromosphere in the H and K lines of Ca II at high spatial and spectral resolution. Accurate m ... read more here.
Keywords: three dimensional; dimensional modeling; astronomy; solar atmosphere ... See more keywords
Wave heating of the solar atmosphere without shocks
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201936938
Abstract: Context. We investigate the wave heating problem of a solar quiet region and present its plausible solution without involving shock formation. Aims. We aim to use numerical simulations to study wave propagation and dissipation in… read more here.
Keywords: solar; wave heating; solar atmosphere; heating solar ... See more keywords
Kink instability of triangular jets in the solar atmosphere
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202039381
Abstract: It is known that hydrodynamic triangular jets are unstable to antisymmetric kink perturbations. The inclusion of magnetic field may lead to the stabilisation of the jets. Jets and complex magnetic fields are ubiquitous in the… read more here.
Keywords: instability triangular; jets solar; kink instability; solar atmosphere ... See more keywords
The non-ideal finite Larmor radius effect in the solar atmosphere
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stac1028
Abstract: The dynamics of the partially ionized solar atmosphere is controlled by the frequent collision and charge exchange between the predominant neutral Hydrogen atoms and charged ions. At signal frequencies below or of the order of… read more here.
Keywords: solar atmosphere; radius; larmor radius; effect ... See more keywords
Impact of thermal misbalance on acoustic-gravity waves in the solar atmosphere
Sign Up to like & getrecommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1005
Abstract: The joint effect of gravity and thermal misbalance on the dynamics of acoustic-gravity waves (AGW) in the solar atmosphere is considered. It is shown that the heating and cooling taken in the form of power… read more here.
Keywords: gravity; acoustic gravity; solar atmosphere; gravity waves ... See more keywords
Three- and Five-Minute Oscillations Modulated by Flares as a Means of Solar Atmosphere Sensing
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy Reports"
DOI: 10.1134/s1063772920030026
Abstract: Abstract— We applied a new approach to measure the time delays of magnetohydrodynamic waves propagating in the solar atmosphere. A small flare in the flare region of the chromosphere served as a modulator of 3‑ and… read more here.
Keywords: minute oscillations; solar atmosphere; five minute; oscillations modulated ... See more keywords