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Strong field limit analysis of gravitational retro-lensing
Ernesto F. Eiroa, Diego F. Torres
We present a complete treatment in the strong field limit of gravitational retro-lensing by a static spherically symmetric compact object having a photon sphere. The results are co…
High-energy gamma-rays from stellar associations
Diego F. Torres, Eva Domingo-Santamaria, Gustavo E. Romero
It is proposed that TeV gamma-rays and neutrinos can be produced by cosmic rays (CRs) through hadronic interactions in the innermost parts of the winds of massive O and B stars. Co…
Hadronic gamma-ray emission from windy microquasars
Gustavo E. Romero, Diego F. Torres, M. M. Kaufman Bernado +1
The jets of microquasars with high-mass stellar companions are exposed to the dense matter field of the stellar wind. We present estimates of the gamma-ray emission expected from t…
Testing the binary black hole paradigm through the Fe Kalpha line profile: application to 3C 273
Diego F. Torres, Gustavo E. Romero, Xavier Barcons +1
We propose the study of long-term variations in the Fe Kalpha line profile as a discriminator for binary black hole (BH) systems. The existence of a binary BH in the center of an a…
On the cross correlation between the arrival direction of ultra-high energy cosmic rays, BL Lacertae, and EGRET detections: A new way to identify EGRET sources?
Diego F. Torres, Stephen Reucroft, Olaf Reimer +1
With the aim of testing recent claims for a particularly strong correlation between ultra-high energy cosmic rays (UHECRs), observed with the AGASA and the Yakutsk experiments, and…
Gamma-ray sources at high latitudes (Extragalactic gamma-ray sources)
Diego F. Torres
This Chapter provides a review of -ray sources lying at high Galactic latitudes. Their statistical properties and variability status, as well as studies involving cross correlat…