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abstract: Spontaneous Workshop (SW) brings together specialists on recent insights in Particle Physics, Astrophysics and Cosmology. The aim is to stimulate debates on common topics in views of providing us with innovating ideas.

The workshop’s organization is based on an optimal number of concise presentations and enough space for discussions on emergent problems in order to favour interactions among participants.

abstract: Gamma-Ray Bursts (GRBs), the most powerful explosions since the formation of the Universe, are unique cosmic events. Lasting from a few milliseconds to several minutes, they shine hundreds of times brighter than a typical supernova, the ultimate end of a massive star, and about a million trillion times as bright as the Sun. There is roughly a GRB detection once a day from wholly random sky directions. It is now widely accepted that GRBs are produced when a massive star undergoes core collapse or when two compact objects merge (e.g. neutron star - neutron star, black hole - neutron star). Due to the extreme luminosity of the multi-wavelength emission, they are now considered as one of the best ways to probe the dawn of the Universe.

An international school aimed at improving our knowledge of the GRB phenomena will take place in Cargèse in May 2010. Other topics to be covered are the unveiling of the nature of the early Universe and the preparation of the next generation of dedicated instruments. The school will be open to the entire scientific community. The school will be based primarily on in-depth lectures, with the remaining time available for shorter contributions from participants.

abstract: The focus is on Relativity Theory in Mathematics and in Physics. There will be survey lectures and specialized talks.

abstract: The purpose of IAU symposium 271 is to enable interaction, discussion, study, and thereby to enhance our understanding, of some of the important nonlinear dynamical processes present in the Universe, with special attention to those that are ubiquitously present in a great variety of astronomical objects, from stars like our Sun to galaxies. Such objects exhibit complex dynamical phenomena spanning a wide range of temporal and spatial scales, with fluid and magnetic instabilities, highly nonlinear states and turbulence playing a central role. Today, understanding the behaviour and evolution of such systems requires high-accuracy, multi-scale astronomical observations coupled with detailed theoretical study via models. In particular, high-performance numerical simulations have become an essential and revealing tool for assessing the often richly subtle and surprising highly nonlinear regime of such models. This symposium therefore will offer a unique opportunity for world experts with widely varying perspectives to share their knowledge and opinions on the latest advances in the study of the common underlying processes from the field of nonlinear astrophysical dynamics.

abstract: The scientific aim of this school is to show how the new generation of data will allow to look for signatures characterizing the models of the early universe. The school will cover the physics of the cosmic microwave background, with particular emphasis on new aspects which are the most relevant to the confrontation of theories with observations. In particular :

abstract: This will be the 22nd meeting in this series of annual international mulitidisciplinary meetings which started in 1989. Particle Physics and Cosmology will emphasize the increasing interplay between high energy accelerator based physics and cosmology. The meeting will consist of plenary sessions as well as of parallel sessions.

abstract: The IAU Symposium 272 will concentrate on physical processes related to active OB stars. These massive stars display strong variability on various time scales due to such phenomena as mass outflows, rapid rotation, pulsations, magnetism, binarity, radiative instabilities, and the influence of their circumstellar environment. This concerns in particular Be, Bp, beta Cep, Slowly Pulsating B Stars (SPB), B[e] and O stars, as well as massive binaries such as the Be X-ray binaries and those that harbor O-type subdwarf companions.

abstract: The Conference is within the astrofundamental physics spirit of the Chalonge School, focalized on recent observational and theoretical progress on the CMB, dark matter, dark energy, dark ages, and the theory of the early universe with predictive power in the context of the Standard Model of the Universe..

In summary, the aim of the meeting is to put together real cosmological data and hard theory predictive approach connected to them in the framework of the Standard Model of th Universe.

abstract: In the decade since the first detection of an exoplanetary transit, more than 60 transiting exoplanets have been discovered and characterized, using both ground-based and space-based observations. A few systems including a transiting planet have also been discovered, providing precise data that can be used for dynamical modelling and for investigating the processes of planet formation and migration. Observations of transits provide not only fundamental parameters of the planet, but also the relative inclination between the orbit and the stellar rotation axis, which offers additional constraints on formation and migration scenarios. The Colloquium "Detection and dynamics of transiting exoplanets" is intended to review all the observed characteristics of transiting systems, and all theoretical works related to the measured properties.