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Table 1
GROND afterglow detection fraction of long-duration bursts as a function of time delay of the start of the observation after the GRB trigger.
| Delay (h) | detected vs. observed (fraction) | fraction of total |
|
|
||
| <0.5 | 20 /22 (91%) | 17% |
| 0.5–4 | 15 /17 (88%) | 14% |
| 4–8 | 10 /21 (48%) | 16% |
| 8–16 | 22 /36 (61%) | 28% |
| 16–24 | 13 /22 (59%) | 17% |
| >24 | 5 /10 (50%) | 8% |
Notes. Based on a total of 128 bursts observed between 070802 and (inclusive) 100331.
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