30 citations · 90 across the 11 of their papers we have counts for
6 papers · 1 filter
The contribution of distant sources to the observed flux of ultra high-energy cosmic rays
Ellis R. Owen, Qin Han, Kinwah Wu +2
Ultra-high-energy (UHE) cosmic rays (CRs) interact with cosmic background radiation through hadronic processes, and the Universe would become `opaque' to UHE CRs of energies …
Assessing the signatures imprinted by star-forming galaxies in the cosmic -ray background
Ellis R. Owen, Khee-Gan Lee, Albert K. H. Kong
In recent years, -ray emission has been detected from star-forming galaxies (SFGs) in the local universe, including M82, NGC 253, Arp 220 and M33. The bulk of this emission is t…
Characterising the signatures of star-forming galaxies in the extra-galactic -ray background
Ellis R. Owen, Khee-Gan Lee, Albert K. H. Kong
Galaxies experiencing intense star-formation episodes are expected to be rich in energetic cosmic rays (CRs). These CRs undergo hadronic interactions with the interstellar gases of…
Interactions between Ultra-High-Energy Particles and Protogalactic Environments
Ellis R. Owen, Idunn B. Jacobsen, Kinwah Wu +1
We investigate the interactions of energetic hadronic particles (cosmic ray protons) with photons and baryons in protogalactic environments, where the target photons are supplied b…
Cosmic rays in early star-forming galaxies and their effects on the interstellar medium
Ellis R. Owen, Kinwah Wu, Pooja Surajbali +1
Galaxies at high redshifts with strong star formation are sources of high-energy cosmic rays. These cosmic rays interact with the baryon and radiation fields of the galactic enviro…
The -ray Milky Way above 10 GeV: Distinguishing Sources from Diffuse Emission
Ellis Owen, Christoph Deil, Axel Donath +1
One of the most prominent features of the -ray sky is the emission from our own Galaxy. The Galactic plane has been observed by Fermi-LAT in GeV and H.E.S.S. in TeV light. Fermi…