Results 101 to 110 of about 1,455,996 (195)

Numerical Experiment on the Influence of Granulation-induced Waves on Solar Chromosphere Heating and Plasma Outflows in a Magnetic Arcade

open access: yesThe Astrophysical Journal
This paper offers a fresh perspective on solar chromosphere heating and plasma outflows, focusing on the contribution of waves generated by solar granulation.
M. Kumar   +5 more
doaj   +1 more source

On the Response of the Transition Region and the Corona to Rapid Excursions in the Chromosphere

open access: yesThe Astrophysical Journal
Spicules are the thin hair/grass-like structures that are prominently observed at the chromospheric solar limb. It is believed that fibrils and rapid blueshifted and redshifted excursions (RBEs and RREs; collectively referred to as REs) correspond to on ...
Ravi Chaurasiya   +4 more
doaj   +1 more source

Chromospheric Response to Nanoflares from IRIS2+ Inversion

open access: yesThe Astrophysical Journal
Nanoflares are considered one of the key mechanisms for heating the solar corona. Because they are difficult to observe directly, measurements at footpoints of coronal loops in the lower atmosphere can provide insight into their properties.
Kyuhyoun Cho   +4 more
doaj   +1 more source

Comprehensive Synthesis of Magnetic Tornado: Cospatial Incidence of Chromospheric Swirls and Extreme-ultraviolet Brightening

open access: yesThe Astrophysical Journal Letters
Magnetic tornadoes, characterized as impulsive Alfvén waves initiated by photospheric vortices in intergranular lanes, are considered efficient energy channels to the corona.
Hidetaka Kuniyoshi   +2 more
doaj   +1 more source

Performance of coloured solar collectors [PDF]

open access: yes, 2009
The use of solar collectors with coloured absorbers for water heating is an area of particular interest when considering their integration with buildings.
Carson, James K.   +2 more
core   +1 more source

Mapping the Longitudinal Magnetic Field in the Atmosphere of an Active Region Plage from the Inversion of the Near-ultraviolet CLASP2.1 Spectropolarimetric Data

open access: yesThe Astrophysical Journal
We apply the HanleRT Tenerife Inversion Code to the spectropolarimetric observations obtained by the Chromospheric Layer Spectropolarimeter. This suborbital space experiment measured the variation with wavelength of the four Stokes parameters in the near-
Hao Li   +12 more
doaj   +1 more source

Two Distinctly Different Characteristics of Flare-driven Coronal Rain Revealed from High-resolution Spectroscopic Imaging Observations with FISS/GST

open access: yesThe Astrophysical Journal
We report on a flare-driven coronal rain event observed along postflare loops during the decay phase of an X1.6-class solar flare. Although high-resolution studies of flare-driven coronal rain have been conducted, imaging spectroscopic studies are rare ...
Donguk Song   +8 more
doaj   +1 more source

Spicules and their on-disk counterparts, the main driver for solar chromospheric heating?

open access: yes, 2016
The question how the outer solar atmosphere is heated from solar photospheric temperatures of about 5800K up to solar chromospheric and coronal temperatures of about 20.000K and millions of degrees respectively, remained without any satisfying answer for centuries. On 4 May 2005, I recorded several time series of Halpha line scans with the GREGOR Fabry-
openaire   +2 more sources

Passive solar space and water heating systems

open access: yes, 1990
The performance of three types of passive solar feature has been studied; fifteen Roof-Space Collectors on an estate of low energy houses at the Milton Keynes Energy Park, 101m2 of Thermosyphoning Air Panels at a county primary school in Nazeing ...
Lo, S. N. G.
core   +3 more sources

Transition Region Brightening in a Moss Region and Their Relation with Lower Atmospheric Dynamics

open access: yesThe Astrophysical Journal
Small-scale brightenings (SBs) are commonly observed in the transition region (TR) that separates the solar chromosphere from the corona. These brightenings, omnipresent in active region patches known as “moss” regions, could potentially contribute to ...
Bhinva Ram   +7 more
doaj   +1 more source

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