Results 1 to 10 of about 509,189 (338)
The infrared solar spectrum contains a wealth of physical data about our Sun, and is explored using modern detectors and technology with new ground-based solar telescopes. The scientific motivation behind exploring these wavelengths is presented, along with a brief look at the rich history of observations here. Several avenues of solar physics research
Penn MJ.
europepmc +5 more sources
Review and comparison of MHD wave characteristics at the Sun and in Earth’s magnetosphere
Magnetohydrodynamic (MHD) waves play a crucial role in the plasma processes of stellar atmospheres and planetary magnetospheres. Wave phenomena in both media are known to have similarities and unique traits typical of each system.
Chelpanov M. A. +6 more
doaj +1 more source
Multiwave Siberian Radioheliograph
The article discusses characteristics, fundamental and applied tasks of the Siberian Radioheliograph that is developed at the ISTP SB RAS Radio Astrophysical Observatory and spectropolarimetric complex that measures the total flux of solar radio emission.
Altyntsev A.T. +13 more
doaj +1 more source
Solar neutrinos: Solar physics and neutrino physics [PDF]
Abstract It is shown that the current solar neutrino situation, with results from the Homestake experiment, the Kamiokande experiment, GALLEX and SAGE is unfortunately still ambiguous. The differences between observations and the standard solar theory may still be due to either astrophysical inputs or new neutrino physics.
D.N. Schramm, X. Shi
openaire +1 more source
Turbulent parameters at different heights in the atmosphere. Shack–Hartmann wavefront sensor data
The paper presents the results of studies of wavefront distortions at different heights in the atmosphere. We have used measurement wavefront data to determine optical turbulence parameters along the line of sight of the Large Solar Vacuum Telescope ...
Shikhovtsev A. Y. +5 more
doaj +1 more source
Under the project National Heliogeophysical Complex of the Russian Academy of Sciences, it is planned to create several coherent decameter radars. ISTP SB RAS developed a network of coherent decameter radars well before the start of financing this ...
Berngardt O.I +6 more
doaj +1 more source
HF radio channel modeling by a waveguide approach
We present a modified method of HF radio channel modeling based on a waveguide approach. The waveguide approach represents the electromagnetic field of radiation inside the Earth—ionosphere waveguide as an eigenfunction series of a radial boundary ...
Kurkin V. I. +4 more
doaj +1 more source
We continue to study the physical processes occurring during the August 17, 2001 magnetospheric storm by analyzing the dynamics of the intensity of field-aligned currents (FACs) in Iijima—Potemra Region 1 in the polar ionospheres of the two hemispheres ...
V.V. Mishin +4 more
doaj +1 more source
Siberian Radioheliograph: first results
Regular observations of active processes in the solar atmosphere have been started using the first stage of the multiwave Siberian Radioheliograph (SRH), a T-shaped 48-antenna array with a 4–8 GHz operating frequency range and a 10 MHz instantaneous ...
Lesovoi S.V. +11 more
doaj +1 more source

