Results 101 to 110 of about 3,072 (224)

The Bright Rim Prominences according to 2.5D Radiative Transfer

open access: yesThe Astrophysical Journal Letters
Solar prominences observed close to the limb commonly include a bright feature that, from the perspective of the observer, runs along the interface between itself and the underlying chromosphere. Despite several idealized models being proposed to explain
Jack M. Jenkins   +4 more
doaj   +1 more source

Zero-Field Dichroism in the Solar Chromosphere

open access: yesPhysical Review Letters, 2003
We explain the linear polarization of the Ca II infrared triplet observed close to the edge of the solar disk. In particular, we demonstrate that the physical origin of the enigmatic polarizations of the 866.2 nm and 854.2 nm lines lies in the existence of atomic polarization in their metastable lower levels, which produces differential absorption of ...
Sainz, R. Manso, Bueno, J. Trujillo
openaire   +3 more sources

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

The Non-Magnetic Solar Chromosphere [PDF]

open access: yes, 2007
. We summarize recent results from self-consistent non-LTE radiation hydrodynamicssimulations of the propagation of acoustic waves through the non-magnetic solar chromosphere. References to more detailed write-ups of the work are given.
Mats Carlsson, Robert F. Stein
core  

The Gondola for the Sunrise iii Balloon-Borne Solar Observatory [PDF]

open access: yes
Publisher Copyright: © The Author(s) 2025.Sunrise iii is a balloon-borne solar observatory dedicated to investigating the physics governing the magnetism and dynamics in the lower solar atmosphere.
Korpi-Lagg, Andreas   +24 more
core   +1 more source

3-D hydrodynamic simulations of the solar chromosphere [PDF]

open access: yes, 2020
. We present first results of three-dimensional numerical simulations of the non-magnetic solar chromosphere, computed with the radiation hydrodynamics code CO 5 BOLD.
B Freytag   +4 more
core  

Determining the Magnetic Field of Active Region Plages Using the Whole CLASP2/2.1 Spectral Window

open access: yesThe Astrophysical Journal
The Chromospheric LAyer SpectroPolarimeter missions, CLASP2 and CLASP2.1, demonstrated that the near-UV spectral region between 279.30 and 280.68 nm is suitable for studying the magnetism of the solar chromosphere.
David Afonso Delgado   +18 more
doaj   +1 more source

Dynamics of the Quiet Solar Chromosphere [PDF]

open access: yes, 1999
The solar chromosphere has never been static although it was often modeled so.Even the quiet-sun internetwork chromosphere has become thoroughly dynamic with the acoustic shock interpretation of the Ca II K 2V grains.
Rutten, R.J.   +3 more
core  

Soft X-ray heating of the solar chromosphere during the gradual phase of two solar flares [PDF]

open access: yes, 2004
In this paper we perform an analysis of the energetics of the solar flaring chromosphere irradiated by soft X-rays (SXR) emitted from overlying hot flare loops.
Berlicki, Arkadiusz   +3 more
core   +1 more source

ALFVÉN WAVE HEATING of the SOLAR CHROMOSPHERE: 1.5D MODELS [PDF]

open access: yes, 2016
ALFVÉN WAVE HEATING of the SOLAR CHROMOSPHERE: 1.5D ...
Sergiy Shelyag (13094397)   +2 more
core  

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