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Capability of the Scalers System of Milagro Pond to Observe GRBs

Capability of the Scalers System of Milagro Pond to Observe GRBs. César Alvarez (BUAP), Humberto Salazar (BUAP) and Magdalena González (UNAM) for Milagro Collaboration. Outline Milagro calculations Preliminary Results D. Allard et al. 2005 ICRC paper.

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Capability of the Scalers System of Milagro Pond to Observe GRBs

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  1. Capability of the Scalers System of Milagro Pond to Observe GRBs César Alvarez (BUAP), Humberto Salazar (BUAP) and Magdalena González (UNAM) for Milagro Collaboration. • Outline • Milagro calculations • Preliminary Results • D. Allard et al. 2005 ICRC paper

  2. To study the capabilities of Milagro pond to detect the high energy component of GRBs around 1 GeV using the scalers system. Aim of the work

  3. Monte Carlo Data

  4. We introduce a weigh in the parameters xcore, ycore, theta, etc • weight=sqrt(xcore*xcore+ycore*ycore)/500.0

  5. Effective Area

  6. We fit a function of the form to the effective area points: a = 198.17 b = 1.62 c = 1.56 d = 9008 E/GeV

  7. P(E)~ 6x10-4(E/GeV)1.7   A=P(E)*16000 m2

  8. Calculating the Fluence: Assuming that High energy spectrum goes a power law rate=5*(2.9E3) Hz The value of the rate was taken from the Tony´s Memo “The events: Part 1 scalers Data”

  9. Fluence E min =0.1 GeV E max =1000GeV Dt=1 s

  10. P.A.O goes as lower as 10 MeV

  11. Maybe UserTask_MC.cc needs more changes MC Simulations to E<100 MeV New calculations of Fluence Future

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