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Table 1
Basic parameters of the two bursts (some information from Kuulkers et al. 2010 and in’t Zand et al. 2011).
Parameter | 4U 0614+09 | 2S 0918-549 |
|
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Time (MJD) | 51 944.91157 | 54 504.12698 |
Date | 2001-Feb.-04 | 2008-Feb.-08 |
RXTE ObsID | 50031-01-03-05 | 93416-01-05-00 |
PCUs | 0,1,2,3 | 0,2 |
Fluence (erg cm-2) | 3.17 × 10-5 | 1.90 × 10-5 |
Rad. energy outp. (erg) | 3.4 × 1040 | 7 × 1040 |
Peak flux (erg cm-2 s-1) | 2.66 × 10-7 | 1.18 × 10-7 |
Timescale (s)a | 120 | 160 |
Precursor durationb (ms) | 43 ± 1 | 32 ± 1 |
Superexpansion duration (s) | 1.15 ± 0.01 | 1.25 ± 0.01 |
Touch-down point (s) | 75 ± 5 | 75 ± 5 |
Ignition column depth (g cm-2) | 8 × 109 | (1–2) ×1010 |
Bol. pers. flux (erg cm-2 s-1) | 3.77 × 10-9 | 5.5 × 10-10 |
(1.4% of peak flux) | (0.5%) |
Notes.
(a)
The timescale is defined as the fluence divided by peak flux (see Galloway et al. 2008);
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