Table 5
Characteristics of prominent γ-ray events during the first 20 months of the Fermi-LAT observations.
| tpeak | tstart | tstop | Δt | Δtrise | Δtfall |
|
(*) |
| JD(†) | JD(†) | JD(†) | days | days | days |
|
|
|
|
|||||||
| 4734 | 4709 | 4754 | 45 | 25 | 20 | 5.5 ± 1.5 | I |
| 4856 | 4844 | 4874 | 30 | 12 | 18 | 3.6 ± 1.1 | 1 |
| 4916 | 4904 | 4944 | 40 | 12 | 28 | 4.0 ± 1.2 | 2 |
| 4978/4998 | 4969 | 5014 | 45 | 9 | 16 | 5.7 ± 1.3/5.4 ± 1.5 | II |
| 5020 | 5014 | 5044 | 30 | 6 | 24 | 4.5 ± 1.2 | 3 |
| 5056/5070 | 5044 | 5089 | 45 | 12 | 19 | 4.4 ± 1.4/4.5 ± 1.2 | 4 |
| 5104 | 5099 | 5119 | 20 | 5 | 15 | 9.1 ± 1.6 | III |
| 5194 | 5169 | 5214 | 45 | 25 | 20 | 4.7 ± 1.4 | 5 |
| 5278 | 5264 | 14 | 3.6 ± 1.1 | 6 | |||
|
|
|||||||
| Average values: | 38 | 13 | 20 | 5.0 ± 0.5 | |||
Notes. tpeak – in units of JD(†) = JD-2 450 000, peak value was obtained from the two-day integrated light curve, all values have an error of ± 1 day; tstart, tstop – in units of JD(†) = JD-2 450 000, all values have an error of ± 3 days; Δt, Δtrise, Δtfall – in units of days, all values with error of ± 4 days; – two-day integrated flux value of the γ-ray event peak value; (*) labels are split into two sub-categories according to their peak flux and significance of detection, denoted by Roman and Arab numbers, see Fig. 4 for details.
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