scholarly journals A statistical study of solar radio Type III bursts and space weather implication

Author(s):  
Theogene Ndacyayisenga ◽  
Jean Uwamahoro ◽  
K. Sasikumar Raja ◽  
Christian Monstein
Solar Physics ◽  
2020 ◽  
Vol 295 (11) ◽  
Author(s):  
Aroori Mahender ◽  
K. Sasikumar Raja ◽  
R. Ramesh ◽  
Vemareddy Panditi ◽  
Christian Monstein ◽  
...  

2021 ◽  
Author(s):  
Theogene Ndacyayisenga ◽  
Ange Cynthia Umuhire ◽  
Jean Uwamahoro ◽  
Christian Monstein

Abstract. This article summarizes the results of an analysis of solar radio bursts detected by the e-Compound Astronomical Low cost Low-frequency Instrument for spectroscopy and Transportable Observatory (e-CALLISTO) spectrometer hosted by the University of Rwanda, College of Education. The data analysed were detected during the first year (2014–2015) of the instrument operation. The Atmospheric Imaging Assembly (AIA) images on board the Solar Dynamics Observatory (SDO) were used to check the location of propagating waves associated with type III radio bursts detected without solar flares. Using quick plots provided by the e-CALLISTO website, we found a total of 202 solar radio bursts detected by the CALLISTO station located in Rwanda. Among them, 5 are type IIs, 175 are type IIIs, and 22 type IVs radio bursts. It is found that all analysed type IIs and ∼37 % of type III bursts are associated with impulsive solar flares while Type IV radio bursts are poorly associated with flares. Furthermore, all of the analysed type II bursts are associated with CMEs which is consistent with the previous studies, and ∼44 % of type IIIs show association with CMEs. On the other hand it is observed that the majority of type IV radio bursts are believed to be originated from CME-driven shocks. Findings from this study confirms that solar radio bursts (SRBs) from ground observation and analysis constitute a clue to diagnose the space weather phenomena such as solar flare and CMEs and to some extent, they may serve as the advance warning of the related severe space weather hazards.


2017 ◽  
Vol 23 (2) ◽  
pp. 1281-1284
Author(s):  
Nur Zulaikha Mohd Afandi ◽  
Roslan Umar ◽  
Nor Hazmin Sabri ◽  
Zamri Zainal Abidin ◽  
Zainol Abidin Ibrahim ◽  
...  

Solar Physics ◽  
2015 ◽  
Vol 290 (10) ◽  
pp. 2975-3004 ◽  
Author(s):  
M. J. Reiner ◽  
R. J. MacDowall

1995 ◽  
Vol 100 (A1) ◽  
pp. 281
Author(s):  
T. J. Rosenberg ◽  
S. Singh ◽  
C. S. Wu ◽  
J. LaBelle ◽  
R. A. Treumann ◽  
...  

1968 ◽  
Vol 46 (10) ◽  
pp. S757-S760 ◽  
Author(s):  
R. P. Lin

The > 40-keV solar-flare electrons observed by the IMP III and Mariner IV satellites are shown to be closely correlated with solar radio and X-ray burst emission. In particular, intense type III radio bursts are observed to accompany solar electron-event flares. The energies of the electrons, the total number of electrons, and the size of the electron source at the sun can be inferred from radio observations. The characteristics of the electrons observed in interplanetary space are consistent with these radio observations. Therefore these electrons are identified as the exciting agents of the type III emission. It has been noted that the radio and X-ray bursts are part of the flash phase of flares. The observations indicate that a striking feature of the flash phase is the production of electrons of 10–100 keV energies.


1974 ◽  
pp. 283-283
Author(s):  
V. V. Zaitsev ◽  
N. A. Mityakov ◽  
V. O. Rapoport

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