First Circular

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Dear Colleagues,

this is the first announcement for an international 10 days school on «  Astrophysical Jets » to be held from May 23rd to June 1st 2016, in Cargèse, Corsica, France. Full information will be available at http://www.issibern.ch/cargese2016.

Scientific Rationale

The phenomenon of jetted matter emission is observed in several astrophysical sources, either in our Galaxy or in the deep Universe. Among these sources, jets are associated with active galactic nuclei, gamma-ray bursts, micro-quasars, young stellar objects, etc. Even if the temporal and spatial characteristics of these jets are different, several phenomena tied to the presence of jets are closely related, and require similar explications. Historically the interpretation of the jet propertied in the different astrophysical objects has been approached in specific ways. Nevertheless different methods (simulations, numerical models, data analysis, etc.) and theoretical concepts could be shared among the different communities, facilitating the understanding of astrophysical jets.

Focussing on the high-energy part of the electromagnetic spectrum, several common mechanisms are invoked in order to explain the non-thermal radiation associated to the jets, and observed over more than nine decades of energy (from keV to TeV). From the particle acceleration point of view (e.g. shocks, diffusive acceleration, stochastic acceleration, current sheets) as well as from the point of view of emission processes (e.g. synchrotron emission, Inverse Compton, Bremsstrahlung, etc.) several objects show striking similarities, but also notable differences, especially in terms of maximum energy of the particles, their injection rate, their environment, etc. The school is aimed mainly at PHD students and young post-docs with the goal of providing them with a global view of astrophysical jets, and to help them to make the fundamental connections between communities, in order to have a more comprehensive approach to the proposed scientific theme.

Venue

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 organized in lectures that will last at maximum 1.5 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 (TBC) 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

  • Radiation processes in high energy astrophysics (G. Ghisellini, INAF/OAB, I)
  • Introduction to the inflow/outflow connection in accreting black holes (S. Markoff, UvA, NL)
  • Astrophysical particle acceleration (J. Kirk, MPI, D)
  • Fully Kinetic and Hybrid Simulations of Collisionless Astrophysical Flows (L. Sironi, CfA Harward, USA)
  • Computer simulations of astrophysical jets (S. Komissarov, Leeds University, UK)
  • Facts and conjectures about magnetically driven jets from accretion discs (J. Ferreira, IPAG, F)
  • Relativity in Astrophysical Jets (L. Stella, INAF/OAR, I)
  • Gamma Ray Bursts (G. Ghirlanda, INAF/OAB, I)
  • Young Stellar Objects (T. Ray, University of Dublin, IE)
  • Active Galactic Nuclei (V. Beckmann, APC, F)
  • X-Ray Binaries and Microquasars (E. Gallo, University of Michigan, USA)
  • The Square Kilometer Array (S. Corbel, Université Paris Diderot, F)
  • SVOM (D. Götz, CEA, F)
  • ATHENA (J. Rodriguez, CEA, F)
  • Revealing the sites of particle acceleration with Very-High-Energy gamma rays (K. Kosack, CEA, F)

Important dates

  • December 2015: second circular and registration opening
  • March 2016: registration closes and participant selection
  • May 23 - June 1 2016

Looking forward to see you in Cargèse.