Derniers Évènements passés

How do you make a solar system like ours?

Salle de Conférence - IRAP Roche 9 avenue du Colonel Roche, Toulouse

Daniel Price (Monash U.) Our solar system makes it seem like the planets were formed in a nice, ordered disc. But dig a little deeper and there are hints that things are not quite as neat as they seem — spins do not align, dust appears to have been violently melted and the planetesimal disc […]

The effects and modelling of light pollution

Salle de Conférence - IRAP Roche 9 avenue du Colonel Roche, Toulouse

Rolf Bühler As urban areas continue to expand, the excessive and misdirected use of artificial lighting is brightening the natural night-time environment. The consequences of this light pollution are far-reaching and affect human health, wildlife,energy consumption, and our ability to observe the night sky. In this talk, I will provide an overview of this topic. I will then present new software that simulates diffuse light pollution due to city skyglow, as well as the one produced directly by lamps on the ground. These simulations are based on satellite measurements of night-time radiance.Contrary to the global trend, I will […]

The impact of environment on proto-planetary disks and planet formation

Salle Lyot - IRAP Belin 14 avenue Edouard Belin, Toulouse

Thomas Haworth - Queen Mary University There is growing evidence that planet-forming disks around young stars can be affected by their wider star forming environment. This environmental impact takes many forms, from chemical inheritance, to gravitational encounters, ``late’’ infall from molecular clouds and external photoevaporation. The latter is my main focus, wherein UV radiation from […]

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