Six long-term postdoctoral positions for the 4D-STAR project

The following initial 4D-STAR positions are offered:

1) a 6-year software-oriented postdoctoral position at Dartmouth College (USA) to work on the development of a new, open-source, multidimensional stellar evolution software instrument.  The successful candidate will be involved in building a new software

infrastructure from the ground up. Major tasks include code development and integrated testing.  Past experience in stellar evolution and astrophysical software development is considered advantageous for this position. Inquiries: [email protected]

2) a 3-year science-oriented postdoctoral position at Toulouse University (France) to include transport processes due to internal rotation and magnetism into numerical 2D and 3D structure models of single magnetic rapidly rotating stars. The postdoc will extend the 2D

stellar structure code ESTER towards stars with a convective envelope and confront simulations with observations. Past experience in astrophysical fluid dynamics is an asset for this position. Inquiries: [email protected]

3) a 6-year software-oriented postdoctoral position at Toulouse University (France) to expand the currently 2D stellar structure code ESTER towards 3D.  The successful candidate will also develop modules to produce spectra and spectral energy distributions by coupling the ESTER code and its extension to 2D/3D dynamical non-local thermodynamic equilibrium atmosphere models. The postdoc will have the task to manage and document the code.   Experience in numerical simulations (fluid dynamics, stellar physics,…) and in software development is advantageous for this position. Inquiries: [email protected]

4) a 4-year science-oriented postdoctoral position at CEA-Saclay (France) to develop new 3D theories for the stochastic excitation, propagation, and damping of waves triggered by the rotating magnetic convective regions of stars. The postdoc will also develop 3D simulations for these three physical processes in stars with a large range of masses and evolutionary stages and predict observables to confront them with available asteroseismic data. The successful candidate will build theoretical prescriptions for the wave-driven transport of angular momentum and chemicals that can be implemented in 2D & 3D stellar structure and evolution models. Past experience in astrophysical/geophysical fluid dynamics, particularly in theory of waves, is an asset for this position. Inquiries: [email protected]

5) a 5-year science-oriented postdoctoral position at KU Leuven (Belgium) to develop nonlinear rotation and magnetic field inversions and apply them to stars with sufficient identified modes, covering various evolutionary stages. The candidate will also develop and apply nonlinear asteroseismology based on amplitude equations to exploit observed mode couplings in rotating magnetic single and binary field stars, as well as open cluster members, thus offering asteroseismic calibrations for new 3D stellar structure and evolution theory. Experience in the computation of gravito-inertial modes and derivation of (near-)core rotation from data is an asset for this position. Inquiries: [email protected]

6) a 4-year software position at KU Leuven (Belgium). This IT-oriented candidate will develop Java modules within the Leuven branch of Coordination Unit 7 of the Gaia Data Processing and Analysis Consortium (DPAC) to process Gaia's photometric and spectroscopic time series of variable stars via machine learning (ML) algorithms. Further, the applicant  will lead and manage high-performance computing (HPC) time applications to European supercomputers to facilitate, operate, document, and help interpret 4D-STAR simulations. Experience in software development, ML, and HPC is an asset, particularly in C++ and/or Java coding. Inquiries: [email protected]