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EGRET upper limits and stacking searches of gamma-ray observations of luminous and ultra-luminous infrared galaxies
Analia N. Cillis, Diego F. Torres, Olaf Reimer
We present a stacking analysis of EGRET -ray observations at the positions of luminous and ultraluminous infrared galaxies. The latter were selected from the recently presented…
Status of the connection between unidentified EGRET sources and supernova remnants: The case of CTA 1
Diego F. Torres, Thomas M. Dame, Gustavo E. Romero
In this paper we briefly comment on the observational status of the possible physical association between unidentified EGRET sources and supernova remnants (SNRs) in our Galaxy. We…
Theoretical modelling of the diffuse emission of gamma-rays from extreme regions of star formation: The case of Arp 220
Diego F. Torres
Our current understanding of ultraluminous infrared galaxies suggest that they are recent galaxy mergers in which much of the gas in the former spiral disks, particularly that loca…
Luminous infrared galaxies as plausible gamma-ray sources for GLAST and IACTs
Diego F. Torres, Olaf Reimer, Eva Domingo-Santamaria +1
We argue that luminous infrared galaxies (LIGs) may constitute a newly detectable population of gamma-ray sources for the next generation of ground and space-based high energy tele…
On the nature of the unidentified MeV gamma-ray source GRO 1411-64
Gustavo E. Romero, Mariana Orellana, Diego F. Torres
A recent analysis of COMPTEL data has revealed the existence of an unidentified and variable gamma-ray source, designated GRO J1411-64, at MeV energies in the galactic plane (Zhang…
Astrophysical Origins of Ultrahigh Energy Cosmic Rays
Diego F. Torres, Luis A. Anchordoqui
In the first part of this review we discuss the basic observational features at the end of the cosmic ray energy spectrum. We also present there the main characteristics of each of…