GOAL
The goal of this project is to study and constrain the pair halo emission of AGN using the 2FHL catalog (E>50 GeV) and the preliminary results for the '3FHL' catalog.
People interested in the project:
Marco A., Alberto D. (add your name)
Links:
Data set:
Data set:
-P8R2_SOURCE_V6 80 months of data (MET 239557417 - 444440679)
-Energy: 50 GeV - 2 TeV and 10 GeV - 2 TeV
-Catalog version of 2FHL catalog FSSC version for the 3FHL catalog /u/gl/majello/ki06/P8_10GeV_80m/10GeV/cat_v2.fits
-Data cuts (note the lack of rocking angle cut):
gtselect zmax=105
gtmktime 'IN_SAA!=T&&DATA_QUAL==1&&LAT_CONFIG==1' and roicut=no
gtltcube zmax=105
-Location of the cleaned data (used for the paper) :
FT1 = /u/gl/majello/ki06/P8_10GeV_80m/Filtered/ft1-50GeV_p8_NOrockCut.fits
FT2 = /u/gl/majello/ki06/P8_10GeV_80m/P810GeV_80months-ft2-30s.fits
- LTCUBE: = /u/gl/majello/ki06/P8_10GeV_80m/ltcube_80m_Source_noRock_cut.fits
SOURCE SAMPLES
We have considered the 2FHL and the 3FHL catalog and we have created three different samples of sources.
| E>50 GeV | E>10 GeV |
|---|---|---|
Low z | all z<0.15 |b|>15 (39) | BL Lacs z<0.15 |b|>20 (43) |
High z | all z>0.4 |b|>15 (27) | BL Lacs z>0.70 |b|>20 (43) |
All | all with |b|>20 (198) | BL Lacs with |b|>20 (90) |
The three cases are labelled as "Low z", "High z" and "All" and the number of sources in each sample is reported in parenthesis.
2FHL: We have always considered all AGN and the most of them are BL Lacs
3FHL: We have considered only BL Lacs.
Therefore our catalog of sources is largely given by BL Lacs.
METHOD
Given the above listed samples we have simulated the Galactic diffuse gamma-ray emission and the isotropic diffuse together with the emission from the selected sources.