Séminaire Doctoral / Seminar PhD |
| « Towards a new understanding of structured condensation of matter from the cosmological down to the galactic scale » |
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Nicolas Cornuault |
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Filaments of gas feeding galaxies, as seen in simulations, must be major channels of galactic accretion at redshifts higher than 1.5. Their study is therefore mandatory to understand galaxy evolution. After a very general sketch of known problems arising in the field, I will present a brief review of previous works linking the thermal state of accreted gas with star formation. Then I will expound a scenario for filamentary accretion that deeply changes the current view on the subject. Finally, I will show some results from my current work on the intergalactic filaments in an AMR zoom-in simulation, which, combined with other recent theoretical works and observations, take part in a new understanding of structured condensation of matter from the cosmological scale down to the galactic one.
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mercredi 7 décembre 2016 - 17:00 Salle Entresol Daniel Chalonge, Institut d'Astrophysique |
| Page web du séminaire / Seminar's webpage |