[Alumnes] Agenda y Novedades CyT - FCAG

[Secretaría de Ciencia y Técnica]

Estimados,

A continuación les enviamos el*resumen de actividades científicas*que 
tendremos la semana próxima en nuestra Facultad. También se encuentran 
disponibles en el nuevo sitio web de FCAGLP.

http://www.fcaglp.unlp.edu.ar/articulo/2016/11/24/agenda_semanal 
<http://www.fcaglp.unlp.edu.ar/articulo/2016/11/24/agenda_semanal>

Encontrarán también en la página las*novedades*de distintos organismos 
de Ciencia y Técnica.

http://www.fcaglp.unlp.edu.ar/articulo/2016/12/1/novedades_en_cyt 
<http://www.fcaglp.unlp.edu.ar/articulo/2016/12/1/novedades_en_cyt>

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*Lunes 8 a viernes 12 de abril*

*

Salón Meridiano y Planetario Ciudad de La Plata

LAPIS 2019: La Plata International School on Astronomy and Geophysics 
"Inverse methods in geophysics."

The objective of the school is to provide participants with the 
possibility of knowing the current state of inversion methods in 
geophysics, together with the most recent applications in diverse areas 
such as hydrocarbon and mineral prospection, hydrogeophysics, 
environmental applications and characterization of the lithosphere, 
tutored by specialists recognized worldwide in the area.

The School is intended for PhD students, young researchers and 
non-expert researchers which are interested in the field of Inversion.

Lab sessions are organised for those students who want to compute 
credits for their PhD courses. The School accepts poster contributions 
from students, to be discussed during the coffee breaks.

Más información, programa y 
horarios:http://lapis2019.fcaglp.unlp.edu.ar/index.html 
<http://lapis2019.fcaglp.unlp.edu.ar/index.html>


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Jueves 11 de abril  10:00hs- Sala del IALP


Seminario:Anabella Araudo

(Institute of Physics, Academy of Sciences, Czech Republic )


Título:Acceleration of UHECRs in AGN jets


Resumen:One of the most exciting and unsolved problems in Astrophysics 
is figuring out the origin of the Ultra High Energy Cosmic Rays 
(UHECRs). These are protons and heavy ions having an energy larger than 
1 EeV arriving on Earth from outside our Galaxy, but their origin 
remains unknown. Relativistic jets in Active 10 Galactic Nuclei (AGN) 
are candidates to be the sources where these particles are accelerated. 
Diffusive shock acceleration is the most established mechanism to 
accelerate particles in sources where strong shocks are present, such as 
AGN jets. However, recent theoretical advances combined with 
multi-frequency observational data indicate that relativistic shocks in 
AGN jets are unable to accelerate particles to energies much larger than 
a PeV. The implication of this result is that if UHECRs are accelerated 
by shocks, then those shocks are probably not relativistic, and 
therefore mildly relativistic shocks in the backflow of giant-lobed 
radio galaxies such as Centaurus A and Fornax A are very promising 
candidates to accelerate UHECRs. In this talk I will present the state 
of the art of UHECR acceleration by shocks in AGN. I will focus on 
particle acceleration and magnetic field amplification in termination 
shocks and in the backflows in AGN jets.

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