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  • Young superstar cluster and cosmic ray origins in our Galaxy

    Seminar Title  

    Young superstar cluster and cosmic ray origins in our Galaxy

       
    Speaker:  DrYANG Ruizhi
       

     Affiliation:       

     (Max-Planck-Institute for Nuclear Physics )

       
    When

    Tuesday afternoon, June 11, 15:00 p.m.

       

    Where:   

    Room 502, Astronomy Building
     

                             Welcome to Attend   

     
      ( PMO Academic Committee & Academic Circulating committee)
     

      Abstract:We found a universal hard spectrum and 1/r spatial distribution of Cosmic rays (CRs) around several young massive clusters in the Galaxy. The derived 1/r decrement of the CR density with the distance from a star cluster is a distinct signature of continuous injection of CRs into the interstellar medium. And the hard energy spectra of parent protons indicate that these massive star clusters are  promising candidates of Galactic PeVatrons. Such objects can provide a distinct CR component with hard spectrum, which may give natural explanation for the anomalies of the local observed flux of the primary and secondary cosmic rays.

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