ITEDA   22747
INSTITUTO DE TECNOLOGIA EN DETECCION Y ASTROPARTICULAS
Unidad Ejecutora - UE
artículos
Título:
Update of large scale anisotropy studies using the infill array
Autor/es:
D. MELO; S. MOLLERACH; E. ROULET; I. SIDELNIK
Revista:
PUBLICACION INTERNA DE LA COLABORACION INTERNACIONAL AUGER
Editorial:
PUBLICACION INTERNA DE LA COLABORACION INTERNACIONAL AUGER
Referencias:
Año: 2012 p. 1 - 9
ISSN:
2250-835X
Resumen:
In this note we present an update of the large scale anisotropy study using the East-West method, applied to the events detected with the inll array. The scanned energy range was 10**16 eV < E < 10**19 eV, using data collected until March 31st 2012. We use three diferent reconstructions to compare the results. Herald inll reconstruction and Offline from both Karlsruhe and ITeDA. No signicant signal of a dipolar modulation in right ascension was found and thus a 99% CL upper limit for the dipole component in the equatorial direction is derived. An approximately constant value of the phase of the rst harmonic in right ascension for energies below 10**18 eV is apparent, with values of Phi = (260 +/- 31) deg, ITeDA = (240 +/- 34) deg, KG = (275 +/- 39) deg. These three values are consistent between each other and compatible with a maximum towards the right ascension of the Galactic Center. The results are also consistent with those obtained with the mainarray in the overlapping energy range.