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Gamma-rays from the compact colliding wind region in Cyg OB2 #5
(American Institute of Physics, 2012)
In this contribution we model the non-thermal emission (from radio toγ-rays) produced in the compact (and recently detected) collidingwind region in the multiple stellar system Cyg OB2 #5. We focus ourstudy on the detectability ...
Can T Tauri stars produce high-energy radiation?
(Universidad Nacional Autónoma de México, 2010)
T Tauri stars are low mass, pre-main sequencestars. These objects are surrounded by an accretion disk and present strongmagnetic activity. T Tauri stars are copious X-rays emitters. The X-rays arelikely generated by powerful ...
A model for the electromagnetic spectrum of the inner jets of Centaurus A
(American Institute of Physics, 2009)
Centaurus A, the closest active galaxy, has been detected from radio to high-energy gamma-rays. The synchrotron radiation by extremely high energy protons may be a suitable mechanism to explain the MeV to GeV emission ...
Astrofísica de altas energías de objetos compactos
(Asociación Argentina de Astronomía, 2015)
En este trabajo se resumen los diferentes aspectos relacionados a la fenomenología que se deriva de la evolución y actividad de objetos compactos (enanas blancas, estrellas de neutrones y agujeros negros) que emiten a altas ...
High-energy astrophysics on compact objects accretion on all scales
(Asociación Argentina de Astronomía, 2019)
La emisión gamma es la evidencia mas fuerte de que procesos no-térmicos tienen lugar en una fuente astrofísica. Estos procesos son el resultado de la presencia de partículas relativistas que interaccionan con los diferentes ...
Neutrino emission from gamma-ray bursts
(Asociación Argentina de Astronomía, 2015)
Gamma-ray bursts (GRBs) are the most violent and energetic events in theuniverse. Short GRBs seem to be the result of the final merger of two compactobjects, whereas long GRBs are probably associated with the gravitationalcollapse ...
The non-thermal broadband spectral energy distribution of radio galaxies
(Cambridge University Press, 2012)
I present a model for the non-thermal production of electromagnetic radiation in the jets of radio galaxies. The model goes far beyond the simple one-zone models usually applied to these sources. The transport equation is ...
Non-thermal radiation from a runaway early-type star
(American Institute of Physics, 2012)
HD 195592 is an O-type supergiant star, known as a well-established runaway. Recently, a Fermi γ-ray source (2FGL J2030.7+4417) with a position compatible with that of HD 195592 has been reported. Our goal is to explore a ...
Relativistic Particles in Magnetized Media around Black Holes
(World Scientific proceedings, 2015)
We study non-thermal processes produced by the injection of relativistic particles in a strongly magnetized corona around an accreting black hole. The spectral energy distribution produced in this component of X-ray binaries ...
Radiative models for jets in X-ray binaries
(Paideia, 2013)
In this work we develop a lepto-hadronic model for the electromagneticradiation from jets in microquasars with low-mass companionstars. We present general results as well as applications to somespecific systems, and carefully ...