Influence of comptonization effect on X-ray burst spectra and estimation of bursters' parameters

We assume that the spectrum of the X-ray burst is modified by the Compton effect. Using the simplified method for the calculations of neutron star's atmosphere, we find the approximation formula connecting the colour temperature with the effective temperature and parameters of neutron star. We apply this formula for one burst from MXB1906+00 and compute the permitted area on the mass-radius plane for this source. This area indicates that the MXB1906+00 is in fact a neutron star. The ratio of the flux during the burst maximum to the Eddington flux is equal 0.94+/sub-0,20//sup+0,26/Iρ error level/. (author)