Accelerated 3D General Purpose Radiative Transfer Codes
Lead Research Organisation:
University College London
Department Name: Physics and Astronomy
Abstract
1. Creation of an advanced suite of 3-d radiative transfer applications that would be able to simulate the transport of e-m radiation in clumpy media; be able treat radiative transfer through gas and/or particles; and treat media in thermodynamic and non-thermodynamic equilibrium. These applications would be published as open source material.
2. These applications would be written so that they would run in a performant way on x86, many core and FPGA architectures.
3. These applications would be written in such a way that they could take advantage of heterogeneous architectures and offload techniques
4. These applications would be used to model the energy balance and chemistry of (i) the very early Universe and (ii) the supernova remnants and their environs.
2. These applications would be written so that they would run in a performant way on x86, many core and FPGA architectures.
3. These applications would be written in such a way that they could take advantage of heterogeneous architectures and offload techniques
4. These applications would be used to model the energy balance and chemistry of (i) the very early Universe and (ii) the supernova remnants and their environs.
Publications
Van De Sande M
(2018)
Determining the effects of clumping and porosity on the chemistry in a non-uniform AGB outflow
in Astronomy & Astrophysics
Ceuster F
(2022)
3D Line Radiative Transfer & Synthetic Observations with Magritte
in Journal of Open Source Software
De Ceuster F
(2020)
magritte, a modern software library for 3D radiative transfer: I. Non-LTE atomic and molecular line modelling
in Monthly Notices of the Royal Astronomical Society
De Ceuster F
(2023)
Radiative transfer as a Bayesian linear regression problem
in Monthly Notices of the Royal Astronomical Society
Danilovich T
(2019)
An ALMA view of CS and SiS around oxygen-rich AGB stars
in Monthly Notices of the Royal Astronomical Society
De Ceuster F
(2019)
MAGRITTE: a new multidimensional accelerated general-purpose radiative transfer code
in Proceedings of the International Astronomical Union
Decin L
(2020)
(Sub)stellar companions shape the winds of evolved stars.
in Science (New York, N.Y.)
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/P510683/1 | 01/10/2016 | 30/09/2021 | |||
| 1878976 | Studentship | EP/P510683/1 | 18/05/2017 | 30/09/2021 | Frederik De Ceuster |
| Description | The transport of electromagnetic radiation plays a crucial role throughout astrophysics. Not only does it determine what we can or cannot observe, it can affect dynamics through radiative pressure, disrupt chemistry via photon-reactions and provides a very efficient heating and cooling mechanism. Computing radiation transport in 3D geometries is a challenging endeavor, mainly due to the large computational cost. We showed that typical 3D input models resulting form astrophysical hydrodynamics simulations can be reduced in size by and order of magnitude without significantly affecting the accuracy of radiative transfer computations on those models, thus allowing to significantly reduce the computational cost. This method was implemented in the open-source Magritte 3D radiative transfer library. |
| Exploitation Route | The mesh reduction technique can be used by anyone who needs radiatvie transfer, ranging from exoplanet atmosphere research all the way to sopernovae, by using the Magritte software library. |
| Sectors | Aerospace, Defence and Marine,Digital/Communication/Information Technologies (including Software),Energy,Environment |
| URL | https://doi.org/10.1093/mnras/staa3199 |