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On the Phase-Averaged Spectrum of Pulsars and Shape of Their Cutoffs (2010)

Celik, O. ; Thomas, T. J.

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Publication Date: 2019-07-13

Description: All gamma ray pulsars exhibit an exponential cutoff in their spectra and for bright pulsars the statistics are sufficiently high to study the detailed shape of the cutoff. The phase averaged spectra of some pulsars exhibit a sub-exponential cutoff, not predicted by any single physical mechanism. Further studies clarified that (his gentler average cutoff is a consequence of having significant variations of the cutoff energy in the phase-resolved spectrum. In conclusion, the phase-averaged spectrum of a pulsar is not a physical quantity to test high-energy emission models.

Keywords: Astrophysics

Type: GSFC.CPR.6616.2012 , AIP Conference Proceedings; 1357; 225-228|Radio Pulsars: An Astrophysical Key to Unlock the Secrets of the Universe; Oct 10, 2010 - Oct 15, 2010; Chia, Sardinia; Italy

Format: text

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