Radio Observations of the 20 January 2005 X-class Flare
Abstract
We present a multi-frequency and multi-instrument study of the 20 January 2005 event. We focus mainly on the complex radio signatures and their association with the active phenomena taking place: flares, CMEs, particle acceleration, and magnetic restructuring. As a variety of energetic-particle accelerators and sources of radio bursts are present, in the flare - ejecta combination, we investigate their relative importance in the progress of this event. The dynamic spectra of ARTEMIS-IV - Wind/Waves - HiRAS, with 2000 MHz - 20 kHz frequency coverage, were used to track the evolution of the event from the low corona to the interplanetary space; these were supplemented with SXR, HXR, and γ-ray recordings. The observations were compared with the expected radio signatures and energetic-particle populations envisaged by the Standard Flare - CME model and the reconnection outflow termination shock model. A proper combination of these mechanisms seems to provide an adequate model for the interpretation of the observational data.
- Publication:
-
Solar Physics
- Pub Date:
- December 2010
- DOI:
- 10.1007/s11207-010-9648-7
- arXiv:
- arXiv:0912.3782
- Bibcode:
- 2010SoPh..267..343B
- Keywords:
-
- Radio bursts;
- Dynamic spectrum;
- Type III;
- Type II;
- Type IV;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- Accepted for publication in Solar Physics