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SUMMARY:Astrophysics Motivation behind the Pierre Auger Southern Observato
 ry Enhancements
DTSTART;VALUE=DATE-TIME:20070706T194500Z
DTEND;VALUE=DATE-TIME:20070706T194500Z
DTSTAMP;VALUE=DATE-TIME:20260413T143447Z
UID:indico-contribution-991@cern.ch
DESCRIPTION:Speakers: Dr. MEDINA TANCO\, Gustavo (ICN-UNAM)\nThe Pierre Au
 ger Collaboration intends to extend the energy range of its southern\nobse
 rvatory in Argentina for high quality data from 0.1 to 3 EeV. The extensio
 ns\nproposed and described in accompanying papers\, include three addition
 al fluorescence\ntelescopes with a more elevated field of view (HEAT) and 
 a nested surface array with\n750 and 433 m spacing respectively and additi
 onal muon detection capabilities\n(AMIGA). The enhancement of the detector
  will allow measurement of cosmic rays\, using\nthe same techniques\, from
  below the second knee up to the highest energies observed.\nThe evolution
  of the spectrum through the second knee and ankle\, and corresponding\npr
 edicted changes in composition\, are crucial to the understanding the end 
 of\nGalactic confinement and the effects of propagation on the lower energ
 y portion of\nthe extragalactic flux. The latter is strongly related to th
 e cosmological\ndistribution of sources and to the composition of the inje
 cted spectrum. We discuss\nthe science motivation behind these enhancement
 s as well as the impact of combined\nHEAT and AMIGA information on the ass
 essment of shower simulations and reconstruction\ntechniques.\n\nhttps://i
 ndico.nucleares.unam.mx/event/4/session/39/contribution/991
LOCATION:Merida\, Mexico Regency (Hyatt)
URL:https://indico.nucleares.unam.mx/event/4/session/39/contribution/991
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