Radio spectra research of compact objects sample

Compact objects include pulsars, black holes, and white dwarfs, among which pulsars are the most observable and studied dense objects. This article will conduct research on the flat and steep spectra of pulsars. Through investigation, we have identified 239 flat-spectrum pulsars and 159 steep-spectrum pulsars, and performed statistical analysis on the spatial position, magnetic field, spectral index of these pulsars. The research results show that flat-spectrum and steep-spectrum pulsars are mainly concentrated near the Galactic plane. The average spectral index of flat-spectrum pulsars is -0.62, with an average dispersion of 192.5 pc cm^-3 , while the average spectral index of a steep spectrum pulsar is -2.88, with an average dispersion measure of 96.5 pc cm^-3 .