Cosmic ray fluxes and the role of sub-dominant source populations to the positron excess

Jagdish C. Joshi, Soebur Razzaque

Research output: Contribution to journalConference articlepeer-review

Abstract

Interactions of cosmic-ray nuclei is the most well-understood contribution to the observed positron flux on Earth. Various scenarios have been proposed, including sources in the spiral arms of the galaxies and nearby isolated sources, which can contribute to the measured flux. In our work we focus on sources such as the gamma-ray novae which can contribute to the observed positron flux, although sub-dominant to the supernova remnants or pulsar-wind nebulae overall, but crucial in the 10s of GeV energy range.

Original languageEnglish
JournalProceedings of Science
Publication statusPublished - 2017
Event35th International Cosmic Ray Conference, ICRC 2017 - Bexco, Busan, Korea, Republic of
Duration: 10 Jul 201720 Jul 2017

ASJC Scopus subject areas

  • Multidisciplinary

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