Results 81 to 90 of about 958,871 (209)

Identifying Plasma Fractionation Processes in the Chromosphere Using IRIS

open access: yesThe Astrophysical Journal
The composition of the solar corona differs from that of the photosphere, with the plasma thought to fractionate in the solar chromosphere according to the first ionization potential (FIP) of the different elements.
David M. Long   +9 more
doaj   +1 more source

Insight into the Solar Plage Chromosphere with DKIST [PDF]

open access: yesThe Astrophysical Journal
Abstract The strongly coupled hydrodynamic, magnetic, and radiation properties of the plasma in the solar chromosphere make it a region of the Sun's atmosphere that is poorly understood. We use data obtained with the high-resolution Visible Broadband Imager (VBI) equipped with an Hβ filter and the Visible Spectro-Polarimeter (ViSP) on ...
David Kuridze   +13 more
openaire   +4 more sources

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

Observational signatures of waves and flows in the solar corona [PDF]

open access: yes, 2015
DM acknowledges support of a Royal Society University Research Fellowship and a KU Leuven Research Council senior research fellowship (SF/12/008). The research leading to these results has also received funding from the European Commission Seventh ...
Antolin, Patrick   +3 more
core   +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

A Unified Model of Solar Prominence Formation with Self-consistent Heating

open access: yesThe Astrophysical Journal
Several models have been proposed to explain the formation of solar prominences, among which the evaporation–condensation model and the direct injection model are the most popular ones.
C. J. Huang   +3 more
doaj   +1 more source

Multiwavelength studies of MHD waves in the solar chromosphere: An overview of recent results [PDF]

open access: yes, 2015
The chromosphere is a thin layer of the solar atmosphere that bridges the relatively cool photosphere and the intensely heated transition region and corona. Compressible and incompressible waves propagating through the chromosphere can supply significant
Jess, D.B.   +20 more
core   +1 more source

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

Solar Flares and the Chromosphere

open access: yes, 2010
5 pages, 3 ...
Fletcher, L.   +6 more
openaire   +2 more sources

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