INVESTIGADORES
GARCIA Beatriz Elena
artículos
Título:
Search for first harmonic modulation in the right ascension distribution of cosmic rays detected at the Pierre Auger Observatory
Autor/es:
ABREU, P.; AGLIETA, M; AHN, E; GARCIA, B (400 AUTORES ORDEN ALFABETICO)
Revista:
ASTROPARTICLE PHYSICS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2011 vol. 34 p. 627 - 639
ISSN:
0927-6505
Resumen:
We present the results of searches for dipolar-type anisotropies in different energy ranges above 2.5 Â 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 aswell as with some theoretical expectations.
