Results 101 to 110 of about 1,010,043 (218)
The Astrophysical Journal LettersWe present an interpretation of the recent Daniel K. Inouye Solar Telescope (DKIST) observations of propagating wave fronts in the lower solar atmosphere.
Shah Mohammad Bahauddin +7 more
doaj +1 more source
Modeling the Solar Chromosphere
, 2007 Spectral diagnostic features formed in the solar chromosphere are few and difficult to interpret -- they are neither formed in the optically thin regime nor in local thermodynamic equilibrium (LTE). To probe the state of the chromosphere, both from observations and theory, it is therefore necessary with modeling.
openaire +2 more sources
The solar chromosphere at high resolution with IBIS
, 2008 Context. The exact nature of the quiet solar chromosphere and especially its temporal variation, are still subjects of intense debate. One of the contentious issues is the possible role of the magnetic field in structuring the quieter solar regions.
G. Cauzzi +5 more
core +1 more source
Turbulence and Its Potential Impact on Solar Chromospheric and Coronal Heating
The Astrophysical JournalLow-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
The Astrophysical JournalWe determine magnetic fields from the photosphere to the upper chromosphere combining data from the Hinode satellite and the CLASP2.1 sounding rocket experiment.
Ryohko Ishikawa +19 more
doaj +1 more source
A single frequency approach to nonequilibrium modeling of the chromosphere
Astronomy & AstrophysicsContext. 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
A model of the prolate chromosphere formation at the solar minimum [PDF]
, 2002 Detailed observations in different chromospheric lines of a solar diameter in polar and equatorial directions showed that the polar chromosphere at the minimum phase of solar cycle looks more extended than the low-latitude chromosphere.
Koutchmy, S., Filippov, B.P., Den, O.G.
core +1 more source
The Astrophysical JournalAccurately assessing the balance between acoustic wave energy fluxes and radiative losses is critical for understanding how the solar chromosphere is thermally regulated.
J. M. da Silva Santos +5 more
doaj +1 more source
Solar Wind Acceleration from the Upper Chromosphere to the Corona in Coronal Hole Regions
, 1999 Flow speeds derived in recent years from chromospheric/transition region and coronal observations suggest that the solar wind acceleration process might start at heights in the solar atmosphere much lower than previously imagined.
Esser, Ruth
core
Propagation and energy dissipation of shock waves in the solar chromosphere [PDF]
The solar atmosphere is permeated by various types of waves that originate from subsurface convection. As these waves propagate upward, they encounter they encounter a steep decrease in the density of the medium, leading to their steepening into shock ...
Erdélyi, R. +5 more
core +1 more source