Narrowband Pulsating Decimeter Structure Observed by the New Ondřejov Solar Radio Spectrograph
Abstract
The new 0.8 - 2.0 GHz Ondřejov radio spectrograph with high time resolution (10 ms) is presented. As an example of first observations the 0.95 - 1.3 GHz narrowband pulsating structure with a characteristic quasi-period of about 150 ms, observed during the impulsive phase of the 9 June 2007 M1.0 flare, is shown. Some of the pulses show very fast but measurable frequency drift of about −17 GHz s−1. The model of this pulsating structure, based on the tearing and coalescence processes in the current sheet, is briefly discussed.
- Publication:
-
Solar Physics
- Pub Date:
- December 2008
- DOI:
- 10.1007/s11207-008-9118-7
- Bibcode:
- 2008SoPh..253...95J
- Keywords:
-
- Sun;
- Radio bursts: Pulsations;
- Instrumentation: Radio spectrograph