Results 11 to 20 of about 1,455,996 (195)
Passive solar-energy air-heating wall panels [PDF]
, 1987 The development of products which enable passive solar-energy air-heating to be integrated into the heating strategies of public, commercial and industrial buildings is described. These buildings are, in general, only occupied significantly during the
Hobday, R. A.
core +7 more sources
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 +3 more sources
Conservatories and domestic heating [PDF]
, 1987 Passive solar gains to buildings in North European Climates can be significant and an investigation is made into the effect of orientation upon solar gains based upon known weather data.
Felgate, G.B.
core +7 more sources
The Astrophysical Journal, 2023 High-resolution spectral observations of the lower solar atmosphere (chromosphere and transition region) during coronal heating events, in combination with predictions from models of impulsively heated loops, provide powerful diagnostics of the ...
Paola Testa +3 more
doaj +1 more source
Heating of the quiet solar chromosphere [PDF]
Solar Physics, 1994 We have analyzed a large number of Caii H line profiles at the sites of the bright points in the interior of the network using a 35-min-long time sequence of spectra obtained at the Vacuum Tower Telescope (VTT) of the Sacramento Peak Observatory on a quiet regon of the solar disc and studied the dynamical processes associated with these structures. Our
Kariyappa, R. +2 more
openaire +2 more sources
OBSERVING THE ROOTS OF SOLAR CORONAL HEATING—IN THE CHROMOSPHERE [PDF]
The Astrophysical Journal, 2009 14 pages, 5 figures, accepted for publication in ApJ ...
De Pontieu, Bart +3 more
openaire +2 more sources
ALFVÉN WAVE HEATING OF THE SOLAR CHROMOSPHERE: 1.5D MODELS [PDF]
The Astrophysical Journal, 2016 ABSTRACT Physical processes that may lead to solar chromospheric heating are analyzed using high-resolution 1.5D non-ideal MHD modeling. We demonstrate that it is possible to heat the chromospheric plasma by direct resistive dissipation of high-frequency Alfvén waves through Pedersen resistivity.
T. D. Arber, C. S. Brady, S. Shelyag
openaire +2 more sources
Geoscience Data Journal, Volume 10, Issue 1, Page 158-177, January 2023., 2023 The importance of scientific data and historical heritage of the Geophysical and Astronomical Observatory of Coimbra University for the study of geophysical sciences. Abstract The Geophysical and Astronomical Observatory of the University of Coimbra (OGAUC) was officially created in 2013 after merging of two historical institutions: the Astronomical ...
Ana Gomes +3 more
wiley +1 more source
Astronomische Nachrichten, Volume 343, Issue 5, June 2022., 2022 Abstract The strong chromospheric absorption lines Ca ii H & K are tightly connected to stellar surface magnetic fields. Only for the Sun, spectral activity indices can be related to evolving magnetic features on the solar disk. The Solar Disk‐Integrated (SDI) telescope feeds the Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) of the ...
Ekaterina Dineva +6 more
wiley +1 more source
The harsh environment where exoplanets live
Astronomische Nachrichten, Volume 343, Issue 4, May 2022., 2022 Abstract The X‐ray and Extreme Ultraviolet (XUV) actvity of the Sun has determined important effects on the planets around it. In particular, high doses of X‐rays, flares, and coronal mass ejections (CMEs) combined with masses and sizes of the planets and the shielding action of the planetary magnetic fields have determined the diverse habitability of ...
Ignazio Pillitteri
wiley +1 more source