de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch
 
Hilfe Wegweiser Impressum Kontakt Einloggen
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Konferenzbeitrag

Cen A as gamma- and UHE cosmic-ray Source

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons30943

Rieger,  F. M.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)

1108.4565
(Preprint), 177KB

Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Rieger, F. M. (2012). Cen A as gamma- and UHE cosmic-ray Source. Memorie della Societa Astronomica Italiana, 83, 127.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000E-B5AB-E
Zusammenfassung
Cen A has been recently detected in the high-energy (HE) and very high energy (VHE) gamma-ray domain by Fermi-LAT and H.E.S.S. We review the observed characteristics and suggest a scenario where the VHE emission originates from the vicinity of the black hole. Motivated by the possible association of some ultra-high energy (UHE) cosmic ray (CR) events with Cen A, we further analyze the acceleration efficiency for a number of a mechanisms (including shock and stochastic acceleration), showing that most of them (apart perhaps from shear) have serious difficulties in accelerating protons beyond a few $10^{19}$ eV.