Effects of a low electron distribution cutoff on multiwavelength spectra and light curves of GRB afterglows
Petropoulou, M.
Piran, T.
Mastichiadis, A.
Aims: We investigate the behavior of the frequency-centered light curves expected within the standard model of Gamma Ray Bursts allowing the maximum electron energy (
max) to be a free parameter permitted to take low values.
Methods: We solve the spatially averaged kinetic equations which describe the simultaneous evolution of particles and photons, obtaining the multi-wavelength spectra as a function of time. From these we construct the frequency-centered light curves giving emphasis in the X-ray and optical bands.
Results: We show that in cases where
max takes low values, the produced X-ray light curves show a plateau as the synchrotron component gives its place to the Synhro Self-Compton one in the X-ray band.
