PIRSA:14050052

Video URL

https://pirsa.org/14050052

Tree-Based Cosmological Radiative Transfer

Woods, R. (2014). Tree-Based Cosmological Radiative Transfer. Perimeter Institute for Theoretical Physics. https://pirsa.org/14050052

Woods, Rory. Tree-Based Cosmological Radiative Transfer. Perimeter Institute for Theoretical Physics, May. 07, 2014, https://pirsa.org/14050052 

          @misc{ scivideos_PIRSA:14050052,
            doi = {10.48660/14050052},
            url = {https://pirsa.org/14050052},
            author = {Woods, Rory},
            keywords = {},
            language = {en},
            title = {Tree-Based Cosmological Radiative Transfer},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2014},
            month = {may},
            note = {PIRSA:14050052 see, \url{https://scivideos.org/index.php/pirsa/14050052}}
          }

Rory Woods

Talk numberPIRSA:14050052
DOI10.48660/14050052
Source RepositoryPIRSA
Collection
Talk Type Conference

Abstract

One of the most challenging problems in computational galaxy formation is modeling distant heating and ionization by locally produced radiation. Most Radiative Transfer (RT) techniques are very computationally expensive and limit users to poor resolution or post-processing thus decoupling the radiation from the dynamics of the simulation. We present a new efficient method for RT implemented in the SPH code GASOLINE aimed at full cosmological simulations. The method is tree-based (similar to a gravity solver) scaling as N$_sinklogN_source$ in the optically thin case and as N$_sinklogN_sourcelogN_tot$ in the optically thick case. Applications range from the reionization of the Universe to H$_2$ formation and destruction. First applications focus on FUV and EUV emission from Milky Way-type galaxies and how these affect satellites galaxies.