Results 21 to 30 of about 106,724 (293)

Electromagnetic Simulations of Solar Radio Emissions [PDF]

Journal of Geophysical Research: Space Physics, 2019
AbstractSolar radio emissions are electromagnetic waves emitted in the solar wind as a consequence of electron beams accelerated during solar flares or interplanetary shocks such as interplanetary coronal mass ejections. Different physical mechanisms have been suggested to describe their origin. A good understanding of the emission process would enable
Henri, Pierre, Sgattoni, A., Briand, C., Amiranoff, François, Riconda, C.   +4 more
openaire   +2 more sources

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

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

LOFAR tied-array imaging and spectroscopy of solar S bursts [PDF]

, 2015
Context. The Sun is an active source of radio emission that is often associated with energetic phenomena ranging from nanoflares to coronal mass ejections (CMEs).
Alexov, A., Anderson, J., Asgekar, A., Avruch, I. M., Bentum, M. J., Bernardi, G., Bisi, M. M., Bonafede, A., Breitling, F., Broderick, J. W., Brouw, W. N., Butcher, H. R., Ciardi, B., de Geus, E., Eislöffel, J., Falcke, H., Fallows, R., Frieswijk, W., Gallagher, P. T., Garrett, M. A., Grießmeier, J., Gunst, A. W., Hessels, J. W. T., Hoeft, M., Karastergiou, A., Kerdraon, A., Kondratiev, V. I., Konovalenko, A. A., Kuper, G., MacKinnon, A.L., Magdalenić, J., Mann, G., McKay-Bukowski, D., McKean, J. P., Morosan, D. E., Munk, H., Orru, E., O’Flannagain, A., Paas, H., Pizzo, R., Polatidis, A. G., Reid, H., Rucker, H. O., Scaife, A. M. M., Sluman, J., Tasse, C., Thidé, B., Toribio, M. C., van Leeuwen, J., Vermeulen, R., Vocks, C., Zarka, P., Zucca, P.   +52 more
core   +8 more sources

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

Ichon Solar Radio Spectrogaphic System and Development of its Operation Software [PDF]

Journal of Astronomy and Space Sciences, 1997
A solar radio spectrograph for monitoring solar radio emission was installed at Ichon branch of Radio Research Laboratory in 1995. The spectrograph consists of three different antennas to sweep a wide band of frequencies in the range of 30MHz-2500MHz. We
K. S. Cho, G. H. Lee, K.-S. Kim
doaj  

Fibre structure of decametric type II radio bursts as a manifestation of emission propagation effects in a disturbed near-solar plasma [PDF]

Annales Geophysicae, 2009
This paper addresses the fine structure of solar decametric type II radio bursts in the form of drifting narrowband fibres on the dynamic spectrum. Observations show that this structure appears in those events where there is a coronal mass ejection ...
A. N. Afanasiev, A. N. Afanasiev
doaj   +1 more source

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   +1 more source

On the origin of 140 GHz emission from the 4 July 2012 solar flare [PDF]

, 2016
The sub-THz event observed on the 4 July 2012 with the Bauman Moscow State Technical University Radio Telescope RT-7.5 at 93 and 140~GHz as well as Kislovodsk and Mets\"ahovi radio telescopes, Radio Solar Telescope Network (RSTN), GOES, RHESSI, and SDO ...
Akabane, Alexander S. Morgachev, Alissandrakis, Chertok, Colgan, Correia, Dulk, Eduard P. Kontar, Fleishman, Fleishman, Galina G. Motorina, Giménez de Castro, Hannah, Kaufmann, Kaufmann, Kaufmann, Kontar, Krucker, Lemen, Lin, Lüthi, Müller, Polina V. Strekalova, Priest, Raulin, Raulin, Razin, Razin, Reale, Rozanov, Silva, Smirnova, Trottet, Trottet, Trottet, Valery G. Nagnibeda, Victoria V. Smirnova, White, White, Yuriy T. Tsap   +39 more
core   +2 more sources