EDP Sciences
Free access
Volume 414, Number 3, February II 2004
Page(s) 1177 - 1184
Section Instruments, observational techniques, and data processing
DOI http://dx.doi.org/10.1051/0004-6361:20031674

A&A 414, 1177-1184 (2004)
DOI: 10.1051/0004-6361:20031674

A study of complexity in Gamma Ray Burst using the Diffusion Entropy approach

N. Omodei1, 2, J. Bellazzini3 and S. Montangero4

1  Dipartimento di Fisica, Universitá di Siena, via Roma 56, 53100 Siena, Italy
2  INFN Sezione Pisa, Polo Fibonacci, via F. Buonarroti 2, 56100 Pisa, Italy
3  Dipartimento di Ingegneria Aerospaziale, Universitá di Pisa, via Caruso, 56100 Pisa, Italy
4  Scuola Normale Superiore & NEST-INFM, Piazza dei Cavalieri 7, 56100 Pisa, Italy

(Received 12 August 2003 / Accepted 16 October 2003)

The Diffusion Entropy algorithm is a method that allows the study of correlated non-stationary time series and allows the discrimination between signal and uncorrelated noise. DE provides a quantitative measure of the complexity by means of a scaling index $\delta$. The aim of this paper is to apply this method to study and statistically characterize Gamma-Ray Burst light curves and to introduce a method to constrain and test GRB models.

Key words: gamma rays: bursts -- methods: data analysis

Offprint request: N. Omodei, nicola.omodei@pi.infn.it

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