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SUMMARY:Signatures of nearby supernova in cosmic ray data
DTSTART:20180319T140000
DTEND:20180319T153000
DTSTAMP:20260916T032111Z
UID:1ff2cc8ffdb3fa73b83c8537092cd2ce526f70b23923b7d8b44c4e3f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dmitri Semikoz (APC Paris\, Moscow)\nIn this talk I will  sh
 ow that standard static model of galactic cosmic rays \nsuggested in 1990
 th  is in direct contradiction with large number of modern \nobservation
 s\, which include measured variability of cosmic ray flux in Galaxy\,\nmag
 netic field measurements and large number of anomalies in local cosmic ray
  \nobservations. I will  present new model of galactic cosmic rays\, \n
 which   takes into account anisotropic  propagation of cosmic rays \n 
 and explain multiple anomalies in the cosmic ray data \n by adding the e
 ffects of a 2 million year old nearby supernova. \nIn particular\, this s
 upernova can explain the excess of positrons \nand antiprotons above 20 G
 eV found by PAMELA and AMS-02\, the discrepancy in the slopes \nof the sp
 ectra of cosmic ray protons and heavier nuclei in the TeV-PeV energy rang
 e \nand the plateau in cosmic ray dipole anisotropy  in the 2-50 TeV ene
 rgy range.  \nSame supernova was responsible  for  Fe60  measured in o
 cean crust.   
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727
STATUS:CONFIRMED
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