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CosApps: Simulate gravitational lensing through ray tracing and shear calculation

Posted: Mon Jan 01, 2018 4:07 am
by Ada Coda
CosApps: Simulate gravitational lensing through ray tracing and shear calculation

Abstract: Cosmology Applications (CosApps) provides tools to simulate gravitational lensing using two different techniques, ray tracing and shear calculation. The tool ray_trace_ellipse calculates deflection angles on a grid for light passing a deflecting mass distribution. Using MPI, ray_trace_ellipse may calculate deflection in parallel across network connected computers, such as cluster. The program physcalc calculates the gravitational lensing shear using the relationship of convergence and shear, described by a set of coupled partial differential equations.

Credit: Coss, David

Site: https://github.com/kd0kfo/cosmology
http://thesis.davecoss.com/

Bibcode: 2017ascl.soft12008C

Preferred citation method: http://adsabs.harvard.edu/abs/2010PhDT.......285C

ID: ascl:1712.008