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Table 1.
Three classes of type III fine structures observed in interplanetary space.
| Type of fine structure | Date | Time | Bandwidth (kHz) | Duration (seconds) | Comment |
|---|---|---|---|---|---|
| IP Type IIIb bursts (Figs. 2 and 3) | 19/09/2011 | 06:45, 11:10 | 60–90 | 240–600 | Most commonly observed type III fine structures in IP space. |
| 21/11/2011 | 13:30, 15:00, 16:00 | 70–100 | 300–600 | Morphological characteristics are somewhat similar to decameter type IIIb. | |
| 22/11/2011 | 18:10, 19:00, 20:00 | 70–100 | 240–600 | Exhibit clear structuring and are well separated. | |
| 23/11/2011 | 10:00, 11:00 | 120–200 | 180–660 | ||
| 11/12/2011 | 20:00 | 60–90 | 150–450 | ||
| 27/09/2012 | 23:25, 23:25 | 70–90 | 240–600 | ||
| Triangular striae burst (Fig. 8) | 12/11/2010 | 07:55 | 90–120 | 30–300 | Rarest type III fine structures. Can also be observed in the higher hectometer wavelengths. |
| Irregular type IIIb burst (Fig. 11) | 12/11/2010 | 13:45 | 90–120 | 60–300 | Observed mostly in higher |
| 31/07/2011 | 19:00 | 50–90 | 120–160 | hectometer wavelengths. | |
| 11/08/2011 | 10:35 | 30–80 | 30–120 | Have no clear structuring and | |
| 22/11/2011 | 01:20 | 60–100 | 120–300 | can occur in irregular | |
| 30/11/2011 | 07:50 | 80–110 | 60–150 | intervals. | |
Notes. The figures showing examples of the studied classes of bursts are also given in the table.
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