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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…
Relativistic reflection X-ray spectra of accretion disks
Khee-Gan Lee, Kinwah Wu, Steven V. Fuerst +2
We have calculated the relativistic reflection component of the X-ray spectra of accretion disks in active galactic nuclei (AGN). Our calculations have shown that the spectra can b…