12 papers
Cosmic ray heating of cold streams: Implications for the gas supply and growth of massive galaxies
Ellis R. Owen, Nicolas Ledos, Evangelia Ntormousi +3
Recent observations have demonstrated the presence of cosmic rays (CRs) in cosmic-web filaments. Cold streams supply gas inflows from these filaments into massive galaxies during t…
Revisiting Disk Winds in Active Galactic Nuclei as an Origin of Cosmic Gamma-ray and Neutrino Backgrounds
Nobuyuki Sakai, Yoshiyuki Inoue, Ellis R. Owen
The origin of the cosmic neutrino background (CNB) and the cosmic gamma-ray background (CGB) remains uncertain. Accretion disk winds driven by active galactic nuclei (AGNs) have be…
Multiwavelength Probes of Cosmic Ray Transport in Molecular Cloud Structures
Hayden P. H. Ng, Ellis R. Owen, Naomi Tsuji +1
We investigate how cosmic ray (CR) transport in molecular clouds and their substructures can be probed using multi-wavelength observations. The detailed microphysics regulating the…
The 'Forgotten' Neutrons: Implications for the Propagation of High-Energy Cosmic Rays in Magnetized Astrophysical and Cosmological Structures
Ellis R. Owen, Kinwah Wu, Yoshiyuki Inoue +3
Cosmological filaments, galaxy clusters, and galaxies are magnetized reservoirs of cosmic rays (CRs). The exchange of CRs across these structures is usually modeled assuming that t…
Neutrinos as a new tool to characterise the Milky Way Centre
Paul C. W. Lai, Beatrice Crudele, Matteo Agostini +4
The Central Molecular Zone (CMZ), a star-forming region rich in molecular clouds located within hundreds of parsecs from the centre of our Galaxy, converts gas into stars less effi…
Cosmic Rays in Galaxy Halos: Impacts on Galactic Outflows and Baryon Cycling
Ellis R. Owen, Leonard E. C. Romano, Kentaro Nagamine
Galaxies with high star-formation rate surface densities often host large-scale outflows that redistribute energy, momentum, and baryons between the interstellar medium and the hal…