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Astrophysical hydrodynamics of reactive flows

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Title Astrophysical hydrodynamics of reactive flows
Period 07 / 2005 - 07 / 2006
Status Completed
Research number OND1311587
Data Supplier Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)

Abstract

This group application of the Leiden theory group around Prof. V. Icke aims at hydrodynamical simulations of various astrophysical objects, ranging from the birth of planets over the death of stars to the evolution of the universe. Our recent improvements allow us to include radiative transfer in these 2D/3D simulations in various approximations (Monte Carlo method, hybrid characteristics method, SimpleX method), which is the key to develop more realistic models of astrophysical gases that can be compared to observations. It also opens up the possibility to study chemical conversions like photoionisation and dust formation which are strongly coupled to the radiative transfer. The concrete objects we want to model are (i) dynamics of dust-driven stellar winds, (ii) young planets interacting with circumstellar disks (iii) ionisation of the ISM / reionisation of the universe and (iv) detection of gravitational waves with pulsar-timing. The combination of 2D/3D hydrodynamical models with radiative transfer and chemical processes requires the use of high-performance parallel computers.

Related organisations

Related people

Researcher Dr. Y. Levin
Researcher Dr. S.J. Paardekooper
Researcher Dr. P. Woitke
Project leader Prof.dr. V. Icke

Classification

A90000 Fundamental research
D17000 Astronomy, astrophysics

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