Halo properties in modified gravity theories with self-accelerated expansion
Narikawa, Tatsuya (Hiroshima University)

I will discuss nonlinear aspects of modified gravity by constructing\r\nsimple halos with the spherical symmetry.\r\nWe investigate the structure of halos in the sDGP (self-accelerating branch of the Dvali-Gavadadze-Porrati braneworld gravity) model and the galileon modified gravity model on the basis of the static and spherically symmetric solutions of the collisionless Boltzmann equation, which reduce to the singular isothermal sphere model and the King model in the limit of Newtonian gravity. In my presentation, I will review common feature of these halos in the modified gravity theories.\r\n