1st Circular

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Dear Colleagues,

this is the first announcement for an international 10 days school on "Cosmic Accelerators" to be held from April 29th to May 8th 2013, in Cargese, Corse, France. Full information will be available at http://www.issibern.ch/cargese2013.

Scientific Rationale

The particle acceleration mechanisms and the associated radiative processes that are at play in numerous phenomena observed in different astrophysical objects (e.g. AGNs, micro-quasars, GRBs, SNRs, pulsars and PWNe) are often very similar, but they take place on different time scales, distances, as well as in very different environments. Historically the phenomenology associated to the different sources has been studied in a specific way. Nevertheless, many methods (e.g. simulations, data analysis, analytical solutions) and theoretical concepts could and should be shared among the different communities in order to facilitate the progress in the particle acceleration field. The school is aimed mainly at PHD students and young post-docs with the goal of providing them with a global view of the particle acceleration problem, and to help them to make the fundamental connections between communities, in order to have a more comprehensive approach to the proposed scientific theme.

The lectures will mainly deal with the following scientific topics:

  • Observational properties of non-thermal high-energy astrophysical sources, from keV to TeV
  • Detailed presentation of some classes of astrophysical sources (PWNs, SNRs, GRBs, AGNs, CRs, INs)
  • Radiative processes (including synchrotron, inverse Compton scattering, pair production, Bremsstrahlung)
  • Acceleration mechanisms (Fermi I & II, magnetic reconnection, charge separation, Pointing flux, rotating magnetic fields, jets)
  • MHD simulations: Monte-Carlo, PIC (particle in cell), hybrid
  • The future challenges: future instruments, open questions


The goal of the school is to gather the experts of the different astrophysical objects/scenarios, linked by the fact that they work on physical models explaining the high-energy radiation from relativistic sources. They will illustrate their different approaches to such a common problem, and will stimulate the young scientists to provide the link that is currently under-exploited among the different communities.

The school will be organised in lectures that will last at maximum two hours in a row, with some sessions split into separate lectures on several days, if needed. Each session will be self-contained, and there will be room for questions and discussions after each lecture. Some time will be available for short (15 min) presentations given by the school participants, and a poster session will be foreseen.

The school will take place at the Institut d'Etudes Scientifiques de Cargese (http://www.iesc.univ-corse.fr) on the coast of Corsica, France. The number of participants will be limited to 80, and the students will be hosted mainly at the Instiute, in double rooms. The fee will include the housing, the coffee and tea breaks, the lunches, the social dinner and the social activities. A reduction of the fees will be granted to students, who have limited funding, on a best effort basis.

Confirmed Speakers and Preliminary Program

Acceleration on all scales (introduction to the school): Felix Aharonian (DE,IE)

Radiative Processes I (non thermal): Alexandre Marcowith (FR)

AGNs: Paolo Coppi (USA) (TBC)

Radiative processes II (thermal): Jelle Kaastra (NL)

SNRs: Jacco Vink (NL)

Acceleration Processes I (Fermi I): Andrei Bykov (RU)

Acceleration Processes II (Fermi II and Monte Carlo): Don Ellison (USA)

Acceleration Processes III (Magnetic reconnection, Charge separation, Poynting Fluxes, rotating B Fields, Jets): Henk Spruit (DE)

PWNe: Elena Amato (IT)

GRBs: Frederic Daigne (FR)

Simulations: Lorenzo Sironi (USA)

Cosmic Rays I (galactic): Vladimir Ptuskin (RU)

Cosmic Rays II (extragalactic): Martin Lemoine (FR)

Isolated Neutron Stars: Andrea De Luca (IT)

HE Binaries: Guillaume Dubus (FR)

Important dates

* July 13 2012 First circular
* September 30 2012 Second circular
* November 30 2012 Registration opens
* Febraury 28 2013 Registration closes
* April 29 -May 8 2013 School

Looking forward to see you in Cargese,

Diego Goetz on behalf of the LOC and the SOC.