Abstract
Group delay between two magnetoionic modes is discovered and spectrally confirmed for the first time for quasiperiodic narrowband millisecond solar radio pulsations. Analysis of cross- and auto- delays proves that both (X and O) modes originate at the same source, so the radiation is weakly polarized originally. This finding allows to specify the emission mechanism of the pulsations to be nonlinear plasma mechanism operating at the second harmonics. Physical parameters of the solar corona are determined by the use of the theory of nonlinear plasma mechanism, they agree well with independent observations of solar millisecond pulsations.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 605-608 |
| Number of pages | 4 |
| Journal | European Space Agency, (Special Publication) ESA SP |
| Issue number | 506 II |
| State | Published - Dec 2002 |
| Externally published | Yes |
| Event | The 10th European Solar Physics Meeting; Solar Variability: From Core to Outer Frontiers - Prague, Czech Republic Duration: Sep 9 2002 → Sep 14 2002 |
All Science Journal Classification (ASJC) codes
- Aerospace Engineering
- Space and Planetary Science
Keywords
- Group delay
- Microwave millisecond pulsations
- Solar radio emission