q-Gaussian and q-BWF Functions Applied to the Decomposition of Pulsar Profiles: Preliminary Results

Author(s): Amelia Carolina Sparavigna

The EPN Database of Pulsar Profiles contains data provided by several generous researchers. The data of pulsar profiles are proposed in three different formats. One is the plain text format which allows an easy use of data to test fitting procedures. Literature reports pulsar profile fits made by means of Gaussian line shapes. Here we propose the use of the q-Gaussian functions, which are generalizing the Gaussian functions. Since the observed profiles are also asymmetric, we propose the use for fitting of the q-BWF functions too. These functions are generalizing the Breit-Wigner-Fano line shapes, with the Breit-Wigner factor substituted by the q-exponential function. The q-exponential was proposed by Constantino Tsallis in 1988 for his generalization of Boltzmann-Gibbs statistics. Preliminary fitting examples are here shown, of some profiles from the EPN Database.

Pulsar Profiles, Profile Decomposition, q-Gaussian Tsallis Lines, Breit-Wigner-Fano Line Shape, q-BWF Line Shape

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