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Experimental Astronomy

, Volume 48, Issue 1, pp 65–76 | Cite as

Future gamma-ray missions’ polarimetric prospects

  • A. F. V. Cortez
  • R. M. Curado da SilvaEmail author
  • G. Rodriguez
  • P. Cumani
  • A. Morselli
  • M. Hernanz
  • V. Tatischeff
  • M. Moita
  • J. M. Maia
  • P. Von Ballmoos
  • A. Zoglauer
Original Article
  • 21 Downloads

Abstract

High-energy astrophysics polarimetry may significantly benefit from e-ASTROGAM and from AMEGO mission proposals, since to date limited polarimetric measurements were performed in this domain, exclusively under 1 MeV. The polarimetric potential of both missions was analyzed in the Compton regime by Monte Carlo mass model simulations with MEGAlib toolkit. The performance of e-ASTROGAM was analyzed by simulating Si tracker and calorimeter alternative configurations and detection materials, within missions’ volume, mass and power margins. The modulation polarimetric factor, Q, and the MDP were calculated for different polarized source types and for variable incidence angle measurement conditions. Finally, the polarimetric performances of both instruments was compared and analyzed. Q modulation factors obtained ranged between ~0.2 and ~0.4 in the 0.2–2.0 MeV band and MDP ~0.65% was estimated for a 100% polarized Crab type source, 1 Ms. observation time and 3σ significance.

Keywords

Gamma-rays Astrophysics Polarimetry Space telescopes DSSD CsI CdTe Monte Carlo 

Notes

Acknowledgements

André Cortez research grant and complementary research leading to these results was funded by the European Union’s Horizon 2020 Programme under the AHEAD project (grant agreement n. 654215). Miguel Moita was supported by a Doctorate in Applied and Engineering Physics fellowship (PD/BD/105922/2014), a FCT funded Ph.D. program.

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • A. F. V. Cortez
    • 1
    • 2
  • R. M. Curado da Silva
    • 1
    • 2
    Email author
  • G. Rodriguez
    • 3
  • P. Cumani
    • 4
    • 5
  • A. Morselli
    • 3
  • M. Hernanz
    • 4
  • V. Tatischeff
    • 5
  • M. Moita
    • 1
    • 2
  • J. M. Maia
    • 1
    • 6
  • P. Von Ballmoos
    • 7
  • A. Zoglauer
    • 8
  1. 1.Laboratório de Instrumentação e Física Experimental de PartículasCoimbraPortugal
  2. 2.Department of PhysicsUniversity of CoimbraCoimbraPortugal
  3. 3.INFN Roma Tor VergataRomeItaly
  4. 4.ICE-CSIC/IEECBellaterraSpain
  5. 5.CSNSM, IN2P3-CNRS and Univ Paris-SudOrsay CedexFrance
  6. 6.Department of PhysicsUniversity of Beira-InteriorCovilhãPortugal
  7. 7.IRAPToulouseFrance
  8. 8.Space Sciences LaboratoryUniversity of CaliforniaBerkeleyUSA

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