Solar turbulent convection probed by helioseismology (A01)

• Subject Area: Astrophysics and Astronomy
• Term: from 2012 to 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 187005812

In the second funding period we will focus on nonlinear inversions for local helioseismology, which are required when flow perturbations are not weak. To limit the number of numerical solutions of forward problems, we will use preconditioned Newton-CG methods. Moreover, we will directly invert for convective Reynolds stresses from correlations of travel times, studying in particular their dependence on latitude. This will contribute to our understanding of the global dynamics of the solar convection zone.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 963: Astrophysical Flow Instabilities and Turbulence
• Applicant Institution: Georg-August-Universität Göttingen
• Co-Applicant Institution: Max-Planck-Institut für Sonnensystemforschung (MPS)
• Project Heads: Professor Dr. Laurent Gizon; Professor Dr. Thorsten Hohage