The study of multi-frequency scattering of 10 radio pulsars

摘要: We present the results of multi-frequency scatter time measurements for ten radio pulsars that were relatively less studied in this regard. The observations performed using Giant Meterwave Radio Telescope at observing frequencies 150, 235, 325, 610 and 1060~MHz. data we collected, conjunction with from other published earlier, allowed us to estimate frequency scaling indices eight these sources. For PSR J1852$-$0635 it occurred its profile undergoes a strong evolution frequency, which makes difficult perform, J1835$-$1020 able obtain reliable pulse broadening estimates only two frequencies. used both: electron density fluctuation strengths along respective lines-of-sight, standardized amount scattering 1 GHz. Combining new earlier by Lewandowski et al., revisited index versus dispersion measure (DM) relation, similarly some studies show average value deviates theoretical predictions large DM pulsars, however reaches magnitude claimed L\"ohmer al. very DMs ($>$650 pc cm$^{-3}$). also investigated dependence strength indicators on pulsar distance, DM, position source Milky Way Galaxy.