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Pulsar Simulations for the Fermi Large Area TelescopePulsars are among the prime targets for the Large Area Telescope (LAT) aboard the recently launched Fermi observatory. The LAT will study the gamma-ray Universe between 20 MeV and 300 GeV with unprecedented detail. Increasing numbers of gamma-ray pulsars are being firmly identified, yet their emission mechanisms are far from being understood. To better investigate and exploit the tAT capabilities for pulsar science. a set of new detailed pulsar simulation tools have been developed within the LAT collaboration. The structure of the pulsar simulator package (PulsarSpeccrum) is presented here. Starting from photon distributions in energy and phase obtained from theoretical calculations or phenomenological considerations, gamma-rays are generated and their arrival times at the spacecraft are determined by taking Into account effects such as barycentric effects and timing noise. Pulsars in binary systems also can be simulated given orbital parameters. We present how simulations can be used for generating a realistic set of gamma rays as observed by the LAT, focusing on some case studies that show the performance of the LAT for pulsar observations.
Document ID
20120014327
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Razzano, M.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Harding, A. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Baldini, L.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Bellazzini, R.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Bregeon, J.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Burnett, T.
(Washington Univ. Seattle, WA, United States)
Chiang, J.
(Stanford Linear Accelerator Center Menlo Park, CA, United States)
Digel, S. W.
(Stanford Univ. Stanford, CA, United States)
Dubois, R.
(Stanford Linear Accelerator Center Menlo Park, CA, United States)
Kuss, M. W.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Latronico, L.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
McEnery, J. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Omodei, N.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Pesce-Rollins, M.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Sgro, C.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Spandre, G.
(Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Thompson, D. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 26, 2013
Publication Date
August 1, 2009
Publication Information
Publication: Astroparticle Physics
Volume: 32
Issue: 1
Subject Category
Astrophysics
Report/Patent Number
GSFC.JA.6890.2012
Distribution Limits
Public
Copyright
Other

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