publication . Preprint . 2015

Comment on AMS02 results support the secondary origin of cosmic ray positrons

Dado, Shlomo; Dar, Arnon;
Open Access English
  • Published: 13 Apr 2015
Abstract
We present a simple calculation of the flux of secondary positrons produced in the ISM that is based only on priors. Our calculated ISM flux agrees very well with that calculated with the elaborate GALPROP code. It confirms that secondary production of positrons in the ISM by the primary cosmic rays cannot explain the observed sub-TeV flux of CR positrons. Moreover, we show that once energy loss of positrons in source and in the ISM are included, secondary production inside the CR sources plus the ISM does explain the measured near-Earth flux of cosmic ray positrons.
Subjects
arXiv: Astrophysics::High Energy Astrophysical PhenomenaAstrophysics::Cosmology and Extragalactic AstrophysicsPhysics::Accelerator PhysicsAstrophysics::Galaxy AstrophysicsHigh Energy Physics::Experiment
free text keywords: Astrophysics - High Energy Astrophysical Phenomena
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[1] K. Blum, B. Katz, E. Waxman, PRL, 111, 211101 (2013) [arXiv:1305.1324] See also R. Cowsik, B. Burch, T. Madziwa-Nussinov, Astrophys. J, 786, 124 (2014) [arXiv:1305.1242].

[2] M. Aguilar, et al. (AMS Collab.) PRL, 110, 141102 (2013); See also S. Ting, (AMS Collab.) press release http://press.web.cern.ch/press-releases/2014/09; M. Ackermann et al. (Fermi LAT Collab.) PRL, 108, 011103 (2012); O. Adriani et al. (PAMELA Collab.) Astropart. Phys. 34, (2010).

[3] S. Dado, & A. Dar, Mem. Soc. Ast. It. 81, 132 (2010) [arXiv:0903.0165], S. Dado, & A. Dar, arXiv:1502.01244;arXiv:1505.04988; P. Blasi, Phys. Rev. Lett.103, 051104 (2009) [arXiv:0903.2794]; L. Stawarz, V. Petrosian, & R. D. Blandford, , 2010, Astrophys. J. 710, 236 (2010) [arXiv:0908.1094].

[4] I. V. Moskalenko, A. W. Strong, Astrophys. J. 493, 694 (1998).

[5] R. Trotta, et al. Astrophys. J 729, 106 (2011).

[6] P.M. Kalberla et al. Astron. & Astrophys. 487, 951 (2008)

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