2 papers
astro-ph.HE2018
Ultrahigh-Energy Cosmic Ray Composition from the Distribution of Arrival Directions
Rita C. dos Anjos, Jorge F. Soriano, Luis A. Anchordoqui +8
The sources of ultrahigh-energy cosmic rays (UHECRs) have been difficult to catch. It was recently pointed out that while sources of UHECR protons exhibit anisotropy patterns that…
astro-ph.HE2017
Ultrahigh energy cosmic ray nuclei from remnants of dead quasars
Roberto J. Moncada, Rafael A. Colon, Juan J. Guerra +2
We re-examine the possibility of ultrahigh energy cosmic rays being accelerated in nearby dormant quasars. We particularize our study to heavy nuclei to accommodate the spectrum an…