Difference between revisions of "Fermi LAT Main OP313"
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| Line 40: | Line 40: | ||
|- | |- | ||
| − | | high || 722300909 || 722984524 || | + | | high || 722300909 || 722984524 || 16 |
|- | |- | ||
| − | | || 723877193 || 724823786|| | + | | || 723877193 || 724823786|| 22 |
|- | |- | ||
| − | | Mid || 722104724 || 722300909|| | + | | Mid || 722104724 || 722300909|| 2 |
|- | |- | ||
| − | | || 722984524 || 723877193 || | + | | || 722984524 || 723877193 || 10 |
|- | |- | ||
| − | | || 724823786 || 725266164 || | + | | || 724823786 || 725266164 || 5 |
|- | |- | ||
| − | | || 726394414 || 726767552 || | + | | || 726394414 || 726767552 || 4 |
|- | |- | ||
| − | | Low || 716277470 || 722104724|| | + | | Low || 716277470 || 722104724|| 22 |
|- | |- | ||
| − | | || 725266164 || 726394414|| | + | | || 725266164 || 726394414|| 4 |
|- | |- | ||
| − | | || 726767552 || 727281241|| | + | | || 726767552 || 727281241|| 2 |
|} | |} | ||
| Line 62: | Line 62: | ||
== SEDs == | == SEDs == | ||
| + | For each SED, a powelaw and a logparabola model were tested | ||
=== Low === | === Low === | ||
| Line 70: | Line 71: | ||
=== High === | === High === | ||
| + | |||
| + | The spectrum is best described by a logparabola with a TS = 80 | ||
| + | |||
| + | Decorrelation energy : 5.66e+02 MeV | ||
| + | |||
| + | TS : 8991.45 | ||
| + | |||
| + | norm : 467.06 +/- 14.19 [ -13.97, + 14.41 ] 1e-12 | ||
| + | |||
| + | alpha : 1.57 +/- 0.03 [ -0.03, + 0.03 ] 1e+00 | ||
| + | |||
| + | beta : 0.10 +/- 0.01 [ -0.01, + 0.01 ] 1e+00 | ||
| + | |||
| + | Eb : 564.00 1e+00 | ||
| + | |||
| + | |||
| + | [[File:HIGHSED_OP313_LogParabola.png|thumb|centre|400px|Fermi-LAT SED hight]] | ||
Revision as of 13:48, 19 February 2024
The Fermi LAT analysis has been performed on a large time scale to derive a long-term light curve and run a Bayesian block analysis to defined bocks of observation
Parameters
RA = 197.6324 degrees
Dec = 32.3547 degrees
Start = 715617241.0 MET (s)
Stop = 727281241.0 MET (s)
ROI = 10.0 degrees
E min = 100.0 MeV
E max = 300000.0 MeV
E min ext = 50.11872336272722 MeV
E max ext = 598578.6944906638 MeV
IRFs = P8R3_SOURCE_V3
evclass = 128
evtype = 3
Long term Fermi-LAT Light curve
This plot is the Fermi-LAT LC with the final bayesian block description. The block are given here
In the High state, I used bins of around 12 hours, 1 day in the Mid state and 3 days in the low state
| Date | MET start | MET stop | N bins |
| high | 722300909 | 722984524 | 16 |
| 723877193 | 724823786 | 22 | |
| Mid | 722104724 | 722300909 | 2 |
| 722984524 | 723877193 | 10 | |
| 724823786 | 725266164 | 5 | |
| 726394414 | 726767552 | 4 | |
| Low | 716277470 | 722104724 | 22 |
| 725266164 | 726394414 | 4 | |
| 726767552 | 727281241 | 2 |
SEDs
For each SED, a powelaw and a logparabola model were tested
Low
Mid
High
The spectrum is best described by a logparabola with a TS = 80
Decorrelation energy : 5.66e+02 MeV
TS : 8991.45
norm : 467.06 +/- 14.19 [ -13.97, + 14.41 ] 1e-12
alpha : 1.57 +/- 0.03 [ -0.03, + 0.03 ] 1e+00
beta : 0.10 +/- 0.01 [ -0.01, + 0.01 ] 1e+00
Eb : 564.00 1e+00
