Results 21 to 30 of about 964 (178)

Morphology of Solar Type II Bursts Caused by Shock Propagation through Turbulent and Inhomogeneous Coronal Plasma

The Astrophysical Journal, 2023
Type II solar bursts are radio signatures of shock waves in the solar corona driven by solar flares or coronal mass ejections (CMEs). Therefore, these bursts present complex spectral morphologies in solar dynamic spectra.
Artem Koval, Aleksander Stanislavsky, Marian Karlický, Bing Wang, Serge Yerin, Aleksander Konovalenko, Miroslav Bárta   +6 more
doaj   +1 more source

Multifrequency Microwave Imaging of Weak Transients from the Quiet Solar Corona

The Astrophysical Journal, 2023
Understanding the dynamics of the quiet solar corona is important for answering key questions including the coronal heating problem. Multiple studies have suggested small-scale magnetic-reconnection events may play a crucial role.
Surajit Mondal, Bin Chen, Sijie Yu
doaj   +1 more source

From the Sun to the Earth: The 13 May 2005 Coronal Mass Ejection [PDF]

, 2010
We report the results of a multi-instrument, multi-technique, coordinated study of the solar eruptive event of 13 May 2005. We discuss the resultant Earth-directed (halo) coronal mass ejection (CME), and the effects on the terrestrial space environment ...
Chashei, I. V., Giunta, A. S., B. V. Jackson, Mikic Z, Chashei IV, Manoharan, PK, Bisi, MM, Jackson, BV, Tokumaru, M., Shishov, VI, Shishov, V. I., A. S. Giunta, M. Tokumaru, Owens, M. J., Pintér, B., S. A. Tyul’bashev, Aguilar-Rodriguez, E., A. G. Wood, Fallows, RA, Linker, J. A., Owen, C. J., Breen, AR, Bisi, M. M., Linker JA, Riley, P., Tokumaru, M, Owens, MJ, Wood, A. G., Manoharan PK, Riley P, Clover, J. M., J. A. Linker, Giunta AS, Glubokova, S. K., Tokumaru M, Jackson BV, Pintér, B, M. S. Hamilton, E. A. Jensen, Shishov VI, Morgan, H., H. Morgan, Fallows RA, Walsh, A. P., S. K. Glubokova, Glubokova SK, Walsh, AP, Fujiki, K., Gonzalez-Esparza A, Jensen, EA, Hamilton, M. S., Manoharan, P. K., Owens MJ, J. M. Clover, M. J. Owens, Tyul’bashev, S. A., Hick, PP, K. Fujiki, Jensen EA, Clover, JM, Breen AR, B. Pintér, Hamilton, MS, Hick PP, A. P. Walsh, Wood AG, P. Riley, Agalya, G, Bisi MM, Z. Mikić, R. A. Fallows, P. P. Hick, Hick, P. P., M. M. Bisi, Clover JM, Pinter B, Wood, AG, Fujiki, K, Tyul'bashev SA, Fallows, R. A., C. J. Owen, Breen, A. R., Walsh AP, Giunta, AS, Gonzalez-Esparza, A., A. R. Breen, G. Agalya, Fujiki K, Mikić, Z., P. K. Manoharan, Chashei, IV, Aguilar-Rodriguez E, Agalya G, Jackson, B. V., Tyul’bashev, SA, Aguilar-Rodriguez, E, Morgan H, Mikić, Z, Owen CJ, Glubokova, SK, I. V. Chashei, Hamilton MS, Jensen, E. A., A. Gonzalez-Esparza, Riley, P, Owen, CJ, Agalya, G., Gonzalez-Esparza, A, Morgan, H, Linker, JA, E. Aguilar-Rodriguez, V. I. Shishov   +111 more
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SOLAR WIND INVESTIGATIONS BY OBSERVATIONS OF INTERPLANETARY SCINTILLATIONS OF COSMIC RADIO SOURCES AT DECAMETER WAVELENGTHS

Radio Physics and Radio Astronomy, 2017
Purpose: Description of the solar wind investigation technique based on interplanetary scintillation observations of the decameter radio emission of space radio sources.
N. N. Kalinichenko, M. R. Olyak, O. O. Konovalenko, I. N. Bubnov, S. N. Yerin, A. I. Brazhenko, O. L. Ivantishin, O. A. Lytvynenko   +7 more
doaj   +1 more source

Coronal Mass Ejections and Solar Radio Emissions (invited) [PDF]

PLANETARY RADIO EMISSIONS VII, 2011
Three types of low-frequency nonthermal radio bursts are associated with coronal mass ejections (CMEs): Type III bursts due to accelerated electrons propagating along open magnetic field lines, type II bursts due to electrons accelerated in shocks, and type IV bursts due to electrons trapped in post-eruption arcades behind CMEs.
openaire   +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

Particle acceleration in the presence of weak turbulence at an X-type neutral point [PDF]

, 2012
We simulate the likely noisy situation near a reconnection region by superposing many 2D linear reconnection eigenmodes. The superposition of modes on the steady state X-type magnetic field creates multiple X- and O-type neutral points close to the ...
Petkaki, P., MacKinnon, A.L., Burge, C. A., MacKinnon, A. L., Burge, C.A.   +4 more
core   +1 more source

THE ROLE OF RADIO WAVE PROPAGATION EFFECTS IN THE SOLAR CORONA TO INTERPRET THE BEHIND-LIMB BURSTS

Radio Physics and Radio Astronomy, 2016
Purpose: The radio emission propagation of solar radio bursts in the solar corona which sources are located on the far side of the Sun relative to the observer on Earth is studied.
A. A. Stanislavsky
doaj   +1 more source

Complex Type II Solar Radio Event on 4 July 2022

, 2022
Publisher Copyright: © 2022 J. Kallunki et al., published by Sciendo.On 4 July 2022, a complex low-frequency solar radio burst was observed in Metsähovi Radio Observatory of Aalto University.
Kallunki, J.
core   +1 more source

An Unsupervised Machine Learning-based Algorithm for Detecting Weak Impulsive Narrowband Quiet Sun Emissions and Characterizing Their Morphology

The Astrophysical Journal, 2023
The solar corona is extremely dynamic. Every leap in observational capabilities has been accompanied by unexpected revelations of complex dynamic processes.
Shabbir Bawaji, Ujjaini Alam, Surajit Mondal, Divya Oberoi, Ayan Biswas   +4 more
doaj   +1 more source