Searching for Missing Baryons with WMAP and PLANCK
About half the baryons in the local Universe could be in the form of a Warm Hot Intergalactic Medium (WHIM). If a large fraction of the gas is ionized, it could...
Searching for Warm Planets around Ultracool Dwarfs
Ultracool dwarfs represent the low-mass tail of the distribution of primary masses for which planets can be found with the Kepler satellite. Our team has...
Shedding light on the darkest galaxies: the Local Group dwarfs
Crucial issues in cosmology and astrophysics are to understand the process of galaxy formation and evolution and the nature of what appears to be the dominant...
The first galaxies are thought to have started the reionization of the Universe, that is the transformation of the cosmic hydrogen from its initial neutral to...
Numerical simulations have played a crucial role in the development of modern cosmology and in the establishment of LCDM. In this talk, I will review the main...
SkyMAD: Building galaxy mock catalogs for large surveys
The accelerated expansion of the Universe discovered in the late 90's has opened one of the most intriguing questions of modern physics. To help to understand...
Small bodies and big impacts: comets, asteroids, and the origin of water and organics on Earth
The role of asteroids and comet impacts on the origin of Earth’s water and organic molecules is reviewed. Earth is believed to have formed dry, and magma oceans...