Cosmic-ray energy densities in star-forming galaxies

Massimo Persic, Yoel Rephaeli

Research output: Contribution to journalConference articlepeer-review


The energy density of cosmic ray protons in star forming galaxies can be estimated from π0-decay γ-ray emission, synchrotron radio emission, and supernova rates. To galaxies for which these methods can be applied, the three methods yield consistent energy densities ranging from Up ∼ 0.1 - 1 eV cm-3 to Up ∼ 102 - 103 eV cm-3 in galaxies with low to high star-formation rates, respectively.

Original languageEnglish
Article number02008
JournalEPJ Web of Conferences
StatePublished - 23 Mar 2017
Event6th Roma International Conference on Astroparticle Physics, RICAP 2016 - Frascati, Roma, Italy
Duration: 21 Jun 201624 Jun 2016


Dive into the research topics of 'Cosmic-ray energy densities in star-forming galaxies'. Together they form a unique fingerprint.

Cite this