Talk detail

Participant	Matos, Tonatiuh
Institution	Departamento de Física, Centro de Investigación y de Estudios Avanzados del IPN - Av. Politecnico 2508, Sn. Pedro Zacatenco - Mexico-city - Gustavo A. Madero, DF - Mexico

Session	BS2	Accepted		Order	Time
Talk	Oral abstract	Title	Scalar Fields as Dark Matter
Coauthors
Abstract	The Scalar Fields as Dark Matter behaves exactly in the same way as Cold Dark Matter at cosmological scales. Nevertheless, at galactic scales this model predicts flat central density dark matter profiles and less formation of substructure, as observed. In this talk we review this properties, deduce some of them in a very simple way and show numerical simulations of galaxies, where the gas form spiral arms and bars as the real galaxies. We conclude that this model fits well the observations at all scales in a simpler way as the cold dark matter paradigm does.
Pdf file

Session	AT3	Accepted		Order	Time
Talk	Oral abstract	Title	Novel Cosmic Censorship from the Kerr-like Wormhole
Coauthors
Abstract	We analyze the geodesic motion around the Kerr-like wormhole (Gen. Rel. Grav. 45,(2014),1613) and show that there is no geodesics touching the ring singularity of the wormhole in any way. This wormhole contains a ring singularity only on the south hemisphere, without horizon, but as in the Kerr solution, there is no manner to see the singularity. Thus, this is a new kind of cosmic censorship.
Pdf file