Statistical Survey of Type III Radio Bursts at Long Wavelengths Observed by the Solar TErrestrial RElations Observatory (STEREO)/ Waves Instruments: Radio Flux Density Variations with Frequency
Abstract
We have performed a statistical study of 152 Type III radio bursts observed by Solar TErrestrial RElations Observatory (STEREO)/Waves between May 2007 and February 2013. We investigated the flux density between 125 kHz and 16 MHz. Both high- and low-frequency cutoffs were observed in 60 % of events, suggesting an important role of propagation. As already reported by previous authors, we observed that the highest flux density occurs at 1 MHz on both spacecraft. We developed a simplified analytical model of the flux density as a function of radial distance and compared it with the STEREO/Waves data.
- Publication:
-
Solar Physics
- Pub Date:
- August 2014
- DOI:
- 10.1007/s11207-014-0522-x
- arXiv:
- arXiv:1410.2053
- Bibcode:
- 2014SoPh..289.3121K
- Keywords:
-
- Solar radio emissions;
- Plasma radiation;
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - Earth and Planetary Astrophysics;
- Physics - Space Physics
- E-Print:
- published in Solar Physics