Results 11 to 20 of about 2,630,706 (301)

Incoherent Solar Radio Emission [PDF]

Frontiers in Astronomy and Space Sciences, 2020
Incoherent solar radio radiation comes from the free-free, gyroresonance, and gyrosynchrotron emission mechanisms. Free-free is primarily produced from Coulomb collisions between thermal electrons and ions.
Alexander Nindos
doaj   +5 more sources

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

Scientific Reports, 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 ...
Giuliano Muratore, Teresa Giannini, Davide Micheli   +2 more
openaire   +4 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   +10 more sources

Solar energetic particles and radio burst emission [PDF]

Journal of Space Weather and Space Climate, 2017
We present a statistical study on the observed solar radio burst emission associated with the origin of in situ detected solar energetic particles. Several proton event catalogs in the period 1996–2016 are used.
Miteva Rositsa, Samwel Susan W., Krupar Vratislav   +2 more
doaj   +3 more sources

Tracing the heliospheric magnetic field via anisotropic radio-wave scattering [PDF]

Scientific Reports
Astrophysical radio sources are embedded in turbulent magnetised environments. In the 1 MHz sky, solar radio bursts are the brightest sources, produced by electrons travelling along magnetic field lines from the Sun through the heliosphere.
Daniel L. Clarkson, Eduard P. Kontar, Nicolina Chrysaphi, A. Gordon Emslie, Natasha L. S. Jeffrey, Vratislav Krupar, Antonio Vecchio   +6 more
doaj   +2 more sources

Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts [PDF]

, 2008
Voyager spacecraft measurements of Saturn kilometric radiation (SKR) identified two features of these radio emissions: that they pulse at a period close to the planetary rotation period, and that the emitted intensity is correlated with the solar wind ...
L. Lamy, Badman, S. V., S. W. H. Cowley, Lamy, L., P. Zarka, S. V. Badman, B. Cecconi, L. Lamy (7600208), Cecconi, B., P. Zarka (7600217), S. V. Badman (7590704), B. Cecconi (7600220), Stanley W. H. Cowley (7590644), Cowley, S. W. H., Zarka, P.   +14 more
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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

An Anisotropic Density Turbulence Model from the Sun to 1 au Derived from Radio Observations

The Astrophysical Journal, 2023
Solar radio bursts are strongly affected by radio-wave scattering on density inhomogeneities, changing their observed time characteristics, sizes, and positions.
Eduard P. Kontar, A. Gordon Emslie, Daniel L. Clarkson, Xingyao Chen, Nicolina Chrysaphi, Francesco Azzollini, Natasha L. S. Jeffrey, Mykola Gordovskyy   +7 more
doaj   +1 more source

CORONAL JETS AS A CAUSE OF MICROWAVE NEGATIVE BURSTS

Solar-Terrestrial Physics, 2020
We have investigated the cause of three “isolated” negative radio bursts recorded one after another at several frequencies in the 1–17 GHz range at the Nobeyama Radio Observatory, Ussuriysk Astrophysical Observatory, and Learmonth Solar Observatory on ...
I.V. Kuzmenko
doaj   +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