We present the results of a study that simulates trajectories of ultra-high energy cosmic rays from Centaurus A to Earth. The arrival directions are characterized to assess whether Cen A can be identified as a source of cosmic rays based on observing departures from isotropy. We analyze separately particles originating from the central engine as well as from the north and south radio lobes of the Cen A complex. Simulations are performed for particle rigidities from E/Z 2 = EV to 100 EV, thus covering the possibility of primary particles as heavy as Fe nuclei with energies exceeding 50 EeV. The Galactic magnetic field is modeled using the recent work of Jansson and Farrar (JF12) which fitted its parameters to match extragalactic Faraday rotation measures and WMAP7 synchrotron emission maps. We also discuss the effects of an additional turbulent magnetic field on the cosmic ray deflections.
|Original language||English (US)|
|Journal||Journal of Physics: Conference Series|
|State||Published - 2014|
|Event||Cosmic Ray Anisotropy Workshop 2013, CRA 2013 - Madison, WI, United States|
Duration: Sep 26 2013 → Sep 28 2013
ASJC Scopus subject areas
- Physics and Astronomy(all)