Abstract

Observations of individual pulses from the pulsar PSR B1530+27 have been carried out. The dispersion measure (DM) toward this pulsar has been found from 11 084 pulses to be \(DM=14.6904\pm 0.0009\) pc cm\({}^{-3}\). The (\(3\sigma\)) upper limit on the DM derivative is \(|dDM/dt|<0.001\) pc cm\({}^{-3}\) yr\({}^{-1}\). The seasonal DM variations related to the passage of radiation through the interplanetary plasma do not exceed 0.01 pc cm\({}^{-3}\).

中文翻译：

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从111 MHz处观察到的对Pulsar PSR B1530 + 27的色散测量

摘要

已经对脉冲星PSR B1530 + 27的单个脉冲进行了观测。从11 084个脉冲中发现了朝向该脉冲星的色散量度（DM）为\（DM = 14.6904 \ pm 0.0009 \） pc cm \（{} ^ {-3} \）。DM导数的（\（3 \ sigma \））上限为\（| dDM / dt | <0.001 \） pc cm \（{} ^ {-3} \） yr \（{} ^ {-1 } \）。与辐射穿过行星际等离子体有关的季节性DM变化不超过0.01 pc cm \（{} ^ {-3} \）。