Gamma-ray bursts (GRB) are the one of the most energetic phenomena in the universe, with typically 1051 erg in gamma rays emitted within of order few tens of seconds. In the case long gamma-ray burst, the radiation is emitted from relativistic jets launched as a result of the gravitational collapse...
A large-scale hydrodynamical cosmological simulation, Horizon-AGN , is used to investigate the alignment between the spin of galaxies and the large-scale cosmic filaments above redshift z = 1.2. The analysis of more than 150 000 galaxies per time step in the redshift range 1.2 &less; z &less; 1.8, resolved with...
Feedback from active galactic nuclei (AGN) is routinely included in semi-analytic and numerical simulations, which have shown that such feedback is able to quench cooling flows and decrease star formation. Radio-mode feedback models from AGN jets are, however, still in the early stages of development. The impact of the jet...
I will first briefly review the current observationnal constraints on the Epoch of Reionization, then I will describe the basic physics of reionization and emission of the 21 cm signal. I will then describe the current status and future prospects of 21cm observations and finally I will present modeling techniques...
To understand the formation of molecular cores, the eventual sites of star formation, it is not enough to know only the physical state of the star-forming high-density gas. One must also determine the velocity field and density structure of the more diffuse medium surrounding the dense gas. One can go...
Gamma-ray bursts (GRB) are the one of the most energetic phenomena in the universe, with typically 1051 erg in gamma rays emitted within of order few tens of seconds. In the case long gamma-ray burst, the radiation is emitted from relativistic jets launched as a result of the gravitational collapse...
March 2015 13 : 30 GRB
A large-scale hydrodynamical cosmological simulation, Horizon-AGN , is used to investigate the alignment between the spin of galaxies and the large-scale cosmic filaments above redshift z = 1.2. The analysis of more than 150 000 galaxies per time step in the redshift range 1.2 &less; z &less; 1.8, resolved with...
October 2014 13 : 30 SMBH and galaxy formation
Feedback from active galactic nuclei (AGN) is routinely included in semi-analytic and numerical simulations, which have shown that such feedback is able to quench cooling flows and decrease star formation. Radio-mode feedback models from AGN jets are, however, still in the early stages of development. The impact of the jet...
October 2014 14 : 30 AGN feedback and galaxy evolution I will first briefly review the current observationnal constraints on the Epoch of Reionization, then I will describe the basic physics of reionization and emission of the 21 cm signal. I will then describe the current status and future prospects of 21cm observations and finally I will present modeling techniques...
September 2014 13 : 30 reionization To understand the formation of molecular cores, the eventual sites of star formation, it is not enough to know only the physical state of the star-forming high-density gas. One must also determine the velocity field and density structure of the more diffuse medium surrounding the dense gas. One can go...
July 2014 13 : 30 GMC, turbulence, MHD, star formation, molecular cores, and observations
和 英