Results 61 to 70 of about 1,264 (196)
Effects of ion magnetization on the Farley-Buneman instability in the solar chromosphere [PDF]
, 2018 Intense heating in the quiet-Sun chromosphere raises the temperature from 4000 to 6500 K but, despite decades of study, the underlying mechanism remains a mystery.
Fletcher, Alex C. +7 more
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Photospheric magnetic vortex structures [PDF]
, 2011 Using direct numerical magneto-hydrodynamic (MHD) simulations, we demonstrate the evidence of two physically different types of vortex motions in the solar photosphere.
Shelyag, S. +14 more
core +1 more source
On the nature of the solar chromosphere
, 2006 DOT high-resolution imagery suggests that only internetwork-spanning Hα “mottles” constitute the quiet-Sun chromosphere, whereas more upright network “straws” in “hedge rows” reflect transition-region ...
Astrophysics +5 more
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Thermodynamic properties of small flares in the quiet Sun observed by H$α$ and EUV: plasma motion of the chromosphere and time evolution of temperature/emission measure [PDF]
, 2023 Yuji Kotani +6 more
openalex +1 more source
, 1999 Observations show that the Sun is not simply a ball of hot plasma but contains several discrete layers: the interior where the energy is generated is covered by the photosphere, the chromosphere and finally the corona.
Parnell, Clare
core +1 more source
Dynamics of fine structure in the solar chromosphere
, 2006 This thesis is concerned with the dynamics of fine structure of the solar chromosphere and transition region, in both quiet sun and active regions. It contains six chapters of observational studies.
Wijn, A.G. de
core
Context. The heating and structure of the solar chromosphere depends on the underlying magnetic field, among other parameters. The lowest magnetic flux of the solar atmosphere is found in the quiet Sun internetwork and is thought to be provided by the ...
S. K. Solanki +5 more
core +1 more source
Solar flux emergence : a three-dimensional numerical study
, 2008 Flux is continually emerging on the Sun, making its way from the solar interior up into the atmosphere. Emergence occurs on small-scales in the quiet Sun where magnetic fragments emerge, interact and cancel and on large-scales in active regions where ...
Murray, Michelle J.
core
Observation of a short-lived pattern in the solar chromosphere
, 2006 Aims.In this work we investigate the dynamic behavior of inter-network regions of the solar chromosphere. Methods.We observed the chromosphere of the quiet Sun using a narrow-band Lyot filter centered at the $\ion{Ca}{ii}$ K2v emission peak with ...
W. Schmidt +3 more
core +1 more source
The quiet sun chromospheric network observed from SKYLAB
The Astrophysical Journal, 1976 The paper analyzes spectra of a supergranulation cell interior and cell boundary obtained near the solar center at wavelengths between 1200 and 1560 A with a normal-incidence spectrograph aboard Skylab. Absolute intensities, relative intensities, and profiles are given for selected optically thin and optically thick lines over the cell interior, the ...
U. Feldman +2 more
openaire +1 more source