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This page summarize the main points of the analysis I did on HESS J1857+026 using to 2 sample of data.
The first analysis used 31 months of data collected from August 4, 2008, until March 2011. Only gamma-rays in the Diffuse class events were selected and we excluded those coming from a zenith angle larger than 100°.We have used the P6_V11_Diffuse instrument response functions (IRFs). We included in the model all the sources of the 18 month catalog and assiociated diffuse files.
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Model | RA(°) | DEC(°) | Semi Major Axis (°) | Semi Minor Axis (°) | Pos.Ang.(°) |
283,990 | 1,355 | 0,300 | 0,190 | 327,000 | |
Pass 6 | 284.015(+/-0.004) | 1.392(+/-0.005) | 0.335(+0.117 -0.086) | 0.207 (+0.023 -0.021) | 330+/- 25 |
Pass 7 | 284.000(+/-0.006) | 1.374(+/-0.006) | 0.332(+0.109/-0.079) | 0.205 (+0.021/-0.017) | 327 +/-22 |
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