9 papers
Variational Inference Using a Differentiable Multigrid Linear Solver
Andrés RamÃrez, Philipp Haim, David Föger +9
Gradient-based Bayesian inference methods require efficient access to Jacobian and adjoint-Jacobian operators of high-dimensional forward models. While multigrid solvers provide ne…
A Three-Dimensional Tomographic Reconstruction of the Galactic Cosmic-Ray Proton Density
Hanieh Zandinejad, Jakob Roth, Vo Hong Minh Phan +7
Cosmic rays (CRs) are a ubiquitous non-thermal component of the interstellar medium (ISM). A data-driven three-dimensional (3D) map of their distribution is essential for understan…
Spatially Coherent 3D Distributions of HI and CO in the Milky Way
Laurin Söding, Gordian Edenhofer, Torsten A. EnÃlin +6
The spatial distribution of the gaseous components of the Milky Way is of great importance for a number of different fields, for example, Galactic structure, star formation, and co…
The influence of the 3D Galactic gas structure on cosmic-ray transport and -ray emission
Andrés RamÃrez, Gordian Edenhofer, Torsten A. EnÃlin +6
Cosmic rays (CRs) play a major role in the dynamics of the interstellar medium (ISM). Their interactions and transport ionize, heat, and push the ISM thereby coupling different reg…
Can cosmic rays explain the high ionisation rates in the Galactic centre?
Sruthiranjani Ravikularaman, Sarah Recchia, Vo Hong Minh Phan +1
The Central Molecular Zone (CMZ), located in the centre of the Milky Way, is a roughly cylindrical structure of molecular gas extending up to parsecs around the supermassive black…
Diffusion of relativistic charged particles and field lines in isotropic turbulence: II. Analytical models
Marco Kuhlen, Vo Hong Minh Phan, Philipp Mertsch
The transport of high-energy particles in the presence of small-scale, turbulent magnetic fields is a long-standing issue in astrophysics. Analytical theories on transport perpendi…