University of Cambridge > Talks.cam > Cosmology Lunch > Following light across the Universe (to test gravity and do other stuff)

Following light across the Universe (to test gravity and do other stuff)

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Tommaso Giannantonio.

Some of the strongest constraints on modified gravity theories by cosmology come from their effects on the propagation of light, examples of which include weak gravitational lensing, the integrated Sachs-Wolfe effect and so on. I will show some recent results of constraining gravity using these observables, and use those to motivate the necessity of a code that can do ray tracing on the fly of numerical simulations. Then I will describe a recent attempt to develop such a code, its algorithms and implementation, and some of its tests. Potential applications of the code, both in and out of the standard paradigm, will be mentioned briefly.

This talk is part of the Cosmology Lunch series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2022 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity