| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000403415 |
| ISSN: | 0103-9733 |
| Authors: | Siffert, Beatriz B1 Lazarotto, B1 Neto, J.R.T. de Mello1 Olinto, Angela2 |
| Institutions: | 1Universidade Federal do Rio de Janeiro, Instituto de Fisica, Rio de Janeiro. Brasil 2University of Chicago, Kavli Institute for Cosmological Physics, Chicago, Illinois. Estados Unidos de América |
| Year: | 2007 |
| Season: | Mar |
| Volumen: | 37 |
| Number: | 1 |
| Pages: | 48-51 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | We analyze the cosmic ray arrival direction map that would be observed if the source of ultra high energy cosmic rays were the decay of dark matter particles in the halos of our galaxy and of the Andromeda galaxy (M31). To model the dark matter distribution throughout the halos we use two different density profiles, the Moore et al. and the Navarro-Frenk-White profile. The results show what would be seen by the Pierre Auger experiment, since we take into account its exposure. We evaluate the dipole and quadrupole terms for the resulting maps in the two density profiles cases and compare them with the terms expected for an isotropic sky |
| Disciplines: | Física y astronomía |
| Keyword: | Astronomía, Astrofísica, Rayos cósmicos, Materia oscura, Halos |
| Keyword: | Physics and astronomy, Astronomy, Astrophysics, Cosmic rays, Dark matter, Halos |
| Full text: | Texto completo (Ver PDF) |
