Results 11 to 20 of about 3,497 (260)

Solar radio emission as a disturbance of radiomobile networks. [PDF]

Sci Rep, 2022
AbstractThis paper analyses the effects of solar radio emissions in the radiomobile context, for the first time leveraging massive European Telecommunications Standards Institute (ETSI) 3rd Generation Partnership Program (3GPP) Minimization of Drive Test (MDT) radio measures produced by 4G LTE (Long Term Evolution) terminals and by 4G LTE Base Station ...
Muratore G, Giannini T, Micheli D.
europepmc   +5 more sources

On the association of solar radio emission and solar prominences. [PDF]

The Astronomical Journal, 1956
Prominence cinematograms made at Sacramento Peak and climax in the years 1949?55 have been examined and compared with the solar radio records at 167 Mc/s. No close connexion was found between limb events and radio events, but some eruptions were found to be associated with simultaneous radio bursts. Three such cases are discussed in detail.
JP Wild, H Zirin
openaire   +1 more source

Solar Radio Emissions and Ultralight Dark Matter

Universe, 2023
Ultralight axions and dark photons are well-motivated dark matter candidates. Inside the plasma, once the mass of ultralight dark matter candidates equals the plasma frequency, they can resonantly convert into electromagnetic waves, due to the coupling between the ultralight dark matter particles and the standard model photons.
Haipeng An, Shuailiang Ge, Jia Liu
openaire   +3 more sources

Anisotropic Radio-wave Scattering and the Interpretation of Solar Radio Emission Observations [PDF]

The Astrophysical Journal, 2019
Abstract The observed properties (i.e., source size, source position, time duration, and decay time) of solar radio emission produced through plasma processes near the local plasma frequency, and hence the interpretation of solar radio bursts, are strongly influenced by propagation effects in the inhomogeneous turbulent solar corona.
Eduard P. Kontar, Xingyao Chen, Nicolina Chrysaphi, Natasha L. S. Jeffrey, A. Gordon Emslie, Vratislav Krupar, Milan Maksimovic, Mykola Gordovskyy, Philippa K. Browning   +8 more
openaire   +8 more sources

On the mechanisms of sporadic solar radio emission [PDF]

Symposium - International Astronomical Union, 1959
The mechanism that generates sporadic (nonthermal) solar radio emission, which is of great interest to radio astronomy and solar physics, is rather obscure. Recently the authors considered this problem [1, 2, 3] and this report gives their summary.
V. L. Ginzburg, V. V. Zhelezniakov
openaire   +1 more source

Characteristics of the Accelerated Electrons Moving along the Loop Derived from Cyclical Microwave Brightenings at the Footpoints

The Astrophysical Journal Letters, 2023
Many particles are accelerated during solar flares. To understand the acceleration and propagation processes of electrons, we require the pitch-angle distributions of the particles.
Keitarou Matsumoto, Satoshi Masuda, Takafumi Kaneko   +2 more
doaj   +1 more source

PROGRESS IN THE STUDY OF DECAMETER-WAVELENGTH SOLAR RADIO EMISSION WITH UKRAINIAN RADIO TELESCOPES. Part 2 [PDF]

Radio Physics and Radio Astronomy, 2023
Subject and Purpose. This part of the paper continues presentation of results of the solar radio emission studies performed with Ukrainian radio telescopes over the past 20 years.
A. A. Stanislavsky, A. A. Koval, I. N. Bubnov, A. I. Brazhenko   +3 more
doaj   +1 more source

Solar Radio Spikes and Type IIIb Striae Manifestations of Subsecond Electron Acceleration Triggered by a Coronal Mass Ejection

The Astrophysical Journal, 2023
Understanding electron acceleration associated with magnetic energy release at subsecond scales presents major challenges in solar physics. Solar radio spikes observed as subsecond, narrow-bandwidth bursts with Δ f / f ∼ 10 ^−3 –10 ^−2 are indicative of ...
Daniel L. Clarkson, Eduard P. Kontar, Nicole Vilmer, Mykola Gordovskyy, Xingyao Chen, Nicolina Chrysaphi   +5 more
doaj   +1 more source

Structure of the Solar Atmosphere: A Radio Perspective

Frontiers in Astronomy and Space Sciences, 2020
Solar radio emission has been providing information about the Sun for over half a century. In order to fully exploit this information, one needs to have a broader view of the solar atmosphere, which cannot be provided by radio observations alone.
Costas E. Alissandrakis
doaj   +1 more source

Multiwave Siberian Radioheliograph

Solar-Terrestrial Physics, 2020
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., Lesovoi S.V., Globa М.V., Gubin A.V., Kochanov A.A., Grechnev V.V., Ivanov E.F., Kobets V.S., Meshalkina N.S., Muratov A.A., Prosovetsky D.V., Myshyakov I.I., Uralov A.M., Fedotova A.Yu.   +13 more
doaj   +1 more source