Table 1
Parameters of selected events.
| Evt | SEP | Radio | H peak | H spectral | He spectral | He/H | e- | AR # | CME speed |
|---|---|---|---|---|---|---|---|---|---|
| # | times(a) | time(b) | intensity(c) | index | index | sign. | (km s−1)(d) | ||
| 1 | 5/22 06– | 5/22 | 0.091 | −3.2 ± 0.1 | −4.1 ± 0.99 | No | N/A(e) | – | |
| 5/22 19 | 0420 | ||||||||
| 2 | 5/24 08– | N/A | 0.12 | −3.3 ± 0.03 | −3.3 ± 0.13 | No | N/A(e) | (231) | |
| 5/25 05 | |||||||||
| 3 | 5/27 18– | 5/27 | 3.75 | −2.7 ± 0.001 | −3.0 ± 0.68 | 0.0033 ± 0.0013 | Yes | 12 764 | 530 |
| 5/28 11 | 1800 | (454) | |||||||
| 4 | 5/28 11– | 5/28 | 1.13 | −2.4 ± 0.001 | −2.7 ± 0.008 | 0.176 ± 0.047 | No | 12 764 | 723 |
| 5/29 08 | 1020 | ||||||||
| 5 | 5/29 08– | 5/29 | 0.56 | −2.3 ± 0.001 | −2.4 ± 0.069 | 0.016 ± 0.009 | Yes | 12 764 | – |
| 5/30 22 | 0720 | ||||||||
| 6 | 6/1 16– | 6/1 | 0.049 | −2.9 ± 0.027 | No | 12 765 | (277) | ||
| 6/2 00 | 1630 | ||||||||
| L20(f) | 4/4 02– | 4/4 | 0.9 | −4.36 ± 0.06 | −4.21 ± 0.26 | 0.052 ± 0.002 | 12 738 | ||
| 4/4 18 | 0240+ | ||||||||
| W20a(g) | 4/20 14– | 4/20 | 2.07 | −3.6 | −4.8 | Yes | 12 738 | ||
| 4/20 18 | 0042 | ||||||||
| W20b(g) | 4/21 12– | 4/20 | 11.4 | −2.8 | −3.6 | Yes | 12 738 | ||
| 4/21 18 | 0326 | ||||||||
Notes. (a) Integration times for fluence spectra, month/day hour of 2020 for events 1–6, 2019 for those of Leske et al. (2020, L20) and Wiedenbeck et al. (2020, W20a and W20b). (b)Time at ~10 MHz to nearest 10 min; no burst was seen for event 2. Multiple bursts from 0240 onwards were noted for L20, (c) at 1.1 MeV in (cm2 sr s MeV)−1, (d) from CACTus using LASCO observations, ‘–’ if not reported; from STEREO-A in parentheses when available, (e) seen by HMI at S25 on the east limb on 2020 May 28, but not assigned an AR#, (f) 2019 event described by Leske et al. (2020), (g)2019 events described by Wiedenbeck et al. (2020).
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