Results 1 to 10 of about 6,042 (298)

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   +3 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

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   +3 more sources

SPORADIC RADIO EMISSION OF SPACE OBJECTS AT LOW-FREQUENCIES [PDF]

Radio Physics and Radio Astronomy, 2021
Purpose: The results of studies of sporadic radio emission of several types of space radio sources, including neutron stars and planets of the Solar System, are presented.
V. V. Zakharenko, V. B. Ryabov, I. P. Kravtsov, K. Yu. Mylostna, V. Yu. Kharlanova, I. Y. Vasylieva, O. M. Ulyanov, O. O. Konovalenko, M. M. Kalinichenko, P. Zarka, H. O. Rucker, G. Fischer, S. M. Yerin, J.-M. Grießmeier, M. A. Sydorchuk, A. I. Shevtsova, A. O. Skoryk, V. A. Shevchenko   +17 more
doaj   +2 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

Solar Radio Bursts Associated with In Situ Detected Energetic Electrons in Solar Cycles 23 and 24

Universe, 2022
The first comprehensive analysis between the in situ detected solar energetic electrons (SEEs) from ACE/EPAM satellite and remotely observed radio signatures in solar cycles (SCs) 23 and 24 (1997–2019) is presented.
Rositsa Miteva, Susan W. Samwel, Svetoslav Zabunov   +2 more
doaj   +2 more sources

Electron Cyclotron Maser Emission and the Brightest Solar Radio Bursts

The Astrophysical Journal
This paper investigates the incidence of coherent emission in solar radio bursts, using a revised catalog of 3800 solar radio bursts observed by the Nobeyama Radio Polarimeters from 1988 to 2023.
Stephen M. White, Masumi Shimojo, Kazumasa Iwai, Timothy S. Bastian, Gregory D. Fleishman, Dale E. Gary, Jasmina Magdalenic, Angelos Vourlidas   +7 more
doaj   +3 more sources

Detection of Radio Emission from Superflaring Solar-type Stars in the VLA Sky Survey

The Astrophysical Journal
Solar-type stars have been observed to flare at optical wavelengths with energies much higher than is observed for the Sun. To date, no counterparts have been observed at longer wavelengths.
Ivey Davis, Gregg Hallinan, Carlos Ayala, Dillon Dong, Steven Myers   +4 more
doaj   +2 more sources

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