30 September 2019 to 4 October 2019
Niels Bohr Institute
Europe/Copenhagen timezone

Radiation-coupled Chemistry in Cosmological Simulations of Galaxy Formation

30 Sep 2019, 10:00
20m
Niels Bohr Institute

Niels Bohr Institute

Conference Mon-Wed: Auditorium A Blegdamsvej 17 Hackathon Thu-Fri: "Skolestuen" (on 1st floor) Geological Museum, Oster Voldgade 7

Speaker

Mr Sean Barrett (University of Oxford)

Description

In cosmological, radiation-hydrodynamics simulations of galaxy formation, chemical abundances and ionisation fractions are often determined by post-processing, which fails to capture the effect the chemical state has on the radiation field (by absorption and emission processes) and ultimately on the dynamics of the gas (by radiative cooling, and indirectly by other interactions with radiation). We have modified the RAMSES-RT radiation-hydrodynamics code to include a rich chemical network, coupled to the radiative transfer solver, so that the chemical state can be calculated self-consistently, rather than via post-processing.

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