The CoCoNuT code is a general relativistic hydrodynamics code with dynamical spacetime evolution. The aim of this numerical code is the study of several astrophysical scenarios in which general relativity can play an important role, namely the collapse of rapidly rotating stellar cores and the evolution of isolated neutron stars.

The emphasis this year shall be put on hydrodynamics, magneto-hydrodynamics and related instabilities. Recent progress and future developments of these fields and of the CoCoNuT code shall be discussed, but not exclusively. Possible topics of the meeting are:

• instabilities in core-collapse supernovae
• neutron star / magnetar oscillations and instabilities

Together with the usual suspects:

• Gravitational waves
• Black hole formation
• Microphysics and neutrino transport

The purpose of the CoCoNuT meeting is twofold: on the one hand it is intended as a regular (yearly so far) meeting of the CoCoNuT users, but it also serves as an opportunity to interchange ideas with users of similar numerical codes. Therefore the attendance to the meeting of anyone outside the CoCoNuT community is welcomed.

• Thierry Foglizzo, CEA-Saclay (France)
• Nick Stergioulas, U. Thessaloniki (Greece)
• Burkhard Zink, U. Tübingen (Germany)

The workshop shall take place at the Laboratoire Univers et Théories (LUTH) department in the Observatoire de Meudon, which depends on Paris Observatory. the meeting will be located in Meudon, France, which is about 10 kilometers south-west of Paris, from November 16 to 18 2011. We encourage interested atendees to submit an abstract for giving a talk. If you would like to attend the meeting please fill the registration form

• September 15, 2011 - registration with hotel.
• October 15, 2011 - registration without hotel.

• Erik Gourgoulhon, LUTH, Observatoire de Paris, Meudon (France).
• Jerome Novak, LUTH, Observatoire de Paris, Meudon (France).
• Micaela Oertel, LUTH, Observatoire de Paris, Meudon (France).
• S. Thomas, LUTH, Observatoire de Paris, Meudon (France).
• Pablo Cerdá-Durán, MPA, Garching bei München (Germany).

Previous CoCoNuT meetings:

• Third CoCoNuT meeting (Sept. 2010, Valencia)
• Second CoCoNuT meeting (Nov. 2009, Valencia)
• CoCoNuT school (Nov. 2008, Garching)
• Fisrt CoCoNuT meeting (Feb. 2008, Garching)