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SUMMARY:CRPropa high statistic simulations for UHECR anisotropy studies
DTSTART;VALUE=DATE-TIME:20220915T073000Z
DTEND;VALUE=DATE-TIME:20220915T081000Z
DTSTAMP;VALUE=DATE-TIME:20260518T002116Z
UID:indico-contribution-82@indico.ift.uam-csic.es
DESCRIPTION:Speakers: Simone Rossoni (University of Hamburg)\nDespite the 
 great progress made by modern cosmic ray observatories\, the origin and ac
 celeration mechanism of ultra-high-energy cosmic rays (UHECRs) remains an 
 unsolved problem to this day. However\, there is experimental evidence for
  an anisotropic component in the UHECR arrival direction greater then few 
 EeV. The search for UHECR sources is further complicated by two main facto
 rs: during extragalactic propagation UHECRs interact with background photo
 n fields (like the CMB and the EBL) and\, since they are electrically char
 ged\, they are deflected by extragalactic and galactic magnetic fields (EG
 MF and GMF). Moreover\, the strength\, structure and origin of the EGMF ar
 e still not well known\, causing reconstructing the deflection of UHECRs a
  non-trivial task. In this work we consider several EGMF models obtained f
 rom constrained MagnetoHydroDynamics (MHD) simulations of our local Univer
 se to study the propagation of UHECRs through such a structured environmen
 t. We simulate propagation\, interactions and observation of UHECRs by usi
 ng the Monte Carlo code CRPropa3. We also take into account the effect of 
 the GMF by adopting a lensing procedure of the arrival UHECR sky map. We e
 xplore several combination of source distribution\, EGMF structure and mas
 s composition. As a reference\, we also simulate scenarios without the EGM
 F and with a statistically homogeneous field. We use our simulation result
 s to compute UHECR observables\, such as the energy spectrum\, the angular
  power spectrum and the arrival direction map (before and after the GMF) i
 n order to obtain constraints on possible combinations of source distribut
 ions and EGMF models.\n\nhttps://indico.ift.uam-csic.es/event/11/contribut
 ions/82/
LOCATION:IFT\, Sala Roja (red room)
URL:https://indico.ift.uam-csic.es/event/11/contributions/82/
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