Open Access
Table 2.
Physical parameters of bursts #1, #2, and #3 determined from the dynamic spectra and the centroids.
| Burst #1 | Burst #2 |
Burst #3 | ||
|---|---|---|---|---|
| F | H | |||
| Dynamic spectrum | ||||
| Time [UT] | 11:11:47 | 11:12:00 | 11:12:03 | 11:12:20 |
| Freq. band [MHz] | 80–65 | 77–29 | 79–73 | 74–28 |
| Height [R⊙] | 1.3–1.4 | 1.3–1.8 | 1.3–1.4 | 1.3–1.8 |
| Central freq. [MHz] | 72.5 | 53.1 | 75.7 | 50.8 |
| Drift rate [MHz s−1] | −2.6 ± 0.2 | −4.3 ± 2.1 | −4.9 * | −9.0 ± 4.8 |
| Energy [keV] | 0.24 ± 0.04 | 1.76 ± 1.73 | 1.72 | 9.06 ± 9.92 |
| Velocity [c] |
||||
| This study | 0.03 ± 0.002 | 0.08 ± 0.04 | 0.08 | 0.19 ± 0.10 |
| Alvarez & Haddock (1973) | 0.31 | 0.29 | 0.48 | 0.28 |
| Mann et al. (1999) | 0.16 | 0.15 | 0.25 | 0.15 |
| Zhang et al. (2018) | 0.15 | 0.17 | 0.23 | 0.17 |
| Centroids | ||||
| Freq. band [MHz] | 75–65 | 75–45 | – | 75–35 |
| Height [R⊙] | 1.3–1.4 | 1.3–1.6 | – | 1.3–1.7 |
| Velocity [c] | – | 0.06 ± 1.08 × 10−4 | – | 0.09 ± 3.2 × 10−5 |
| Energy [keV] | – | 0.92 ± 0.003 | – | 2.26 ± 0.002 |
Notes. Columns F and H are respectively the fundamental and harmonic components of burst #2. The table also includes velocities determined on the basis of the drift rate obtained by various authors (see Table 1).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.