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Aug 26 – 30, 2024
University of Chicago
America/Chicago timezone

Cosmic positrons from catalogued pulsars

Aug 26, 2024, 5:25 PM
20m
401 (ERC)

401

ERC

Speaker

Fiorenza Donato (Torino University & INFN)

Description

We present a new study on the prediction of the cosmic positron flux from catalogued pulsars. The flux is computed on parameters derived from massive simulations performed within several theoretical frameworks. The flux from the Galactic pulsars is then summed to a state-of-the-art prediction on the secondary positron contribution, and compared to AMS-02 data. A synthesis of our analysis is discussed in statistical terms, studying in particular the number of pulsars shaping the measured flux. We finally inspect the properties of the pulsars contributing significantly to the positron flux, and address the multi wavelength and multi-messenger studies desirable to a better understanding of the pulsars’s role in shaping the detected cosmic positron flux.

Primary authors

Presentation materials