Results 121 to 130 of about 1,105,860 (262)

Chromosphere of the quiet sun

Astronomy & Astrophysics
Context. The solar chromosphere is a dynamic and crucial interface between the solar interior and its interplanetary environment, regulating how energy is locally deposited into heat and transported into the upper atmospheric layers.
Noraz Q., Carlsson M., Aulanier G.
doaj   +1 more source

Solar Chromospheric Heating by Magnetohydrodynamic Waves: Dependence on the Inclination of the Magnetic Field

The Astrophysical Journal
A proposed mechanism for solar chromospheric heating is magnetohydrodynamic waves propagating upward along magnetic field lines and dissipating their energy in the chromosphere.
Mayu Koyama, Toshifumi Shimizu
doaj   +1 more source

The solar chromosphere at high resolution with IBIS [PDF]

, 2009
G. Cauzzi, K. Reardon, R. J. Rutten, A. Tritschler, H. Uitenbroek   +4 more
openalex   +1 more source

Comparison between variations in solar UV radiation and sunspot parameters with Mg II daily index as a proxy

Physics Open
Solar UV radiation influence the Earth's climate and upper atmosphere. The UV emission from the Sun modulates with the sunspot cycle with an 11-year periodicity.
(G) Chandrika, Belur Ravindra, Vijay Kumar Doddamani   +2 more
doaj   +1 more source

Solar Flares and the Chromosphere

, 2010
5 pages, 3 ...
Fletcher, L., Turkmani, R., Hudson, H. S., Hawley, S. L., Kowalski, A., Berlicki, A., Heinzel, P.   +6 more
openaire   +2 more sources

SOLAR HARD X-RAY SOURCE SIZES IN A BEAM-HEATED AND IONIZED CHROMOSPHERE [PDF]

, 2015
Aidan O’Flannagain, J. C. Brown, P. T. Gallagher   +2 more
openalex   +1 more source

Generation and Life Cycle of Solar Spicules

The Astrophysical Journal
The physical mechanism for the creation of solar spicules is proposed with three stages of their life cycle. It is assumed that at stage I the density hump is formed locally in the x-y plane in the lower chromosphere in the presence of temperature ...
Hamid Saleem, Zain H. Saleem
doaj   +1 more source

Observations of the upper solar chromosphere with SUMER [PDF]

, 2003
K. Wilhelm, W. Kalkofen
openalex   +1 more source

Insight into the Solar Plage Chromosphere with DKIST

The Astrophysical Journal
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)
David Kuridze, Han Uitenbroek, Friedrich Wöger, Mihalis Mathioudakis, Huw Morgan, Ryan Campbell, Catherine Fischer, Gianna Cauzzi, Thomas Schad, Kevin Reardon, João M. da Silva Santos, Christian Beck, Alexandra Tritschler, Thomas Rimmele   +13 more
doaj   +1 more source

Alfvén Wave Heating of Solar Chromosphere Reexamined

The Astrophysical Journal
Models of heating the weakly ionized solar atmosphere by collisional damping of upward-propagating Alfvén waves, calculated under the assumption that only incompressible (intermediate-mode) MHD waves are involved, have predicted heating rates that do not
Vytenis M. Vasyliūnas
doaj   +1 more source