An accretion disk and radio spectra of pulsars

Details An accretion disk and radio spectra of pulsars An accretion disk and radio spectra of pulsars

2003-07-15

arxiv.org/abs/astro-ph/0307288v2

Gravitation, Cosmology and Relativistic Astrophysics, edited by Yu.V.Alexandrov et al., (Kharkov National University, Kharkov,

Astronomy and Astrophysics

Astrophysics

3 pages,LaTeX 2e, A talk given at the 2nd Gravitational Conference: Gravitation, Cosmology and Relativistic Astrophysics, June

Scientific paper

On the basis of the unified model of compact radio sources, the dependence of a turnover frequency in the smoothed radio spectrum of a pulsar upon the ratio of the dispersion measure to the period of a pulsar is obtained. This relation is produced by the radial density wave in the accretion disk surrounding a pulsar. The unified model of compact radio sources gives also the smoothed spectral indices of radio emission from pulsars as $\alpha=2$ for the gaseous disk with the temperature profile T=const and $\alpha=3$ for the gaseous disk with the pressure profile P=const ($F_{\nu} \propto \nu ^{- \alpha} $).

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