Počet záznamů: 1

Search for first harmonic modulation in the right ascension distribution of cosmic rays detected at the Pierre Auger Observatory

  1. 1.
    0364444 - FZU-D 2013 RIV NL eng J - Článek v odborném periodiku
    Abreu, P. - Aglietta, M. - Ahn, E.J. - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Kárová, Tatiana - Mandát, Dušan - Nečesal, Petr - Nožka, Libor - Nyklíček, Michal - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - Schovancová, Jaroslava - Schovánek, Petr - Šmída, Radomír - Trávníček, Petr
    Search for first harmonic modulation in the right ascension distribution of cosmic rays detected at the Pierre Auger Observatory.
    Astroparticle Physics. Roč. 34, č. 8 (2011), s. 627-639 ISSN 0927-6505
    Grant CEP: GA MŠk LC527; GA MŠk(CZ) 1M06002; GA MŠk(CZ) MEB111003; GA MŠk(CZ) LA08016
    Výzkumný záměr: CEZ:AV0Z10100502; CEZ:AV0Z10100522
    Klíčová slova: ultra-high energy cosmic rays * large scale anisotropies * Pierre Auger Observatory
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 3.216, rok: 2011

    We present the results of searches for dipolar-type anisotropies in different energy ranges above 2.5 × 1017 eV with the surface detector array of the Pierre Auger Observatory, reporting on both the phase and the amplitude measurements of the first harmonic modulation in the right-ascension distribution. Upper limits on the amplitudes are obtained, which provide the most stringent bounds at present, being below 2% at 99% C.L. for EeV energies. We also compare our results to those of previous experiments as well as with some theoretical expectations.
    Trvalý link: http://hdl.handle.net/11104/0199929