Multiscale autocorrelation function: a new approach to anisotropy studies

Details Multiscale autocorrelation function: a new approach to anisotropy studies Multiscale autocorrelation function: a new approach to anisotropy studies

2010-01-11

arxiv.org/abs/1001.1666v4

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

18 pages, 9 figures

Scientific paper

We present a novel catalog-independent method, based on a scale dependent approach, to detect anisotropy signatures in the arrival direction distribution of the ultra highest energy cosmic rays (UHECR). The method provides a good discrimination power for both large and small data sets, even in presence of strong contaminating isotropic background. We present some applications to simulated data sets of events corresponding to plausible scenarios for charged particles detected by world-wide surface detector-based observatories, in the last decades.

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