87 citations · 264 across the 38 of their papers we have counts for
10 papers · 1 filter
The extragalactic -ray background: imprints from the physical properties and evolution of star-forming galaxy populations
Ellis R. Owen, Albert K. H. Kong, Khee-Gan Lee
Star-forming galaxies (SFGs) harbour an abundant reservoir of cosmic rays (CRs). At GeV energies, these CRs undergo interactions with their environment to produce -rays, and the…
Emission from hadronic and leptonic processes in galactic jet-driven bubbles
Ellis R. Owen, H. -Y. Karen Yang
We investigate the multiwavelength emission from hadronic and leptonic cosmic rays (CRs) in bubbles around galaxies, analogous to the Fermi bubbles of the Milky Way. The bubbles ar…
Multi-wavelength emission from leptonic processes in ageing galaxy bubbles
Ellis R. Owen, H. -Y. Karen Yang
The evolutionary behavior and multi-wavelength emission properties of bubbles around galaxies, such as the \textit{Fermi} bubbles of the Milky Way, is unsettled. We perform 3D magn…
Outflows from starburst galaxies with various driving mechanisms and their X-ray properties
B. P. Brian Yu, Ellis R. Owen, Kuo-Chuan Pan +2
Outflows in starburst galaxies driven by thermal-mechanical energy, cosmic rays and their mix are investigated with 1D and 2D hydrodynamic simulations. We show that these outflows…
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…