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Table 3

Apparent DM in each frequency band of our observations using a static template and a template based on a frequency-dependent model.

DMLBA DMHBA DMJod DMavg

B0329+54 static 26.774    ±     0.001 26.664    ±     0.0003 26.7    ±     0.2 26.7673    ±     0.0002
model 26.764    ±     0.001 26.7662    ±     0.0004 26.8    ±     0.4 26.7641    ±     0.0001

B0809+74 static 5.735    ±     0.006 5.750    ±     0.007 10.2    ±     0.2 5.752    ±     0.001
model 5.735    ±     0.005 5.71    ±     0.01 5.5    ±     0.5a 5.733    ±     0.001

B1133+16 static 4.8456    ±     0.0003 4.8412    ±     0.0005 5.04    ±     0.1 4.8459    ±     0.0001
model 4.8450    ±     0.0003 4.8446    ±     0.0005 5.15    ±     0.1 4.8451    ±     0.0001

B1919+21 static 12.4370    ±     0.0001 12.447    ±     0.001 12.8    ±     0.1 12.4373    ±     0.0001
model 12.4371    ±     0.0003 12.443    ±     0.002 12.5    ±     0.1 12.4370    ±     0.0001

Notes. DMavg is the DM using all of the observing bands.

(a)

DM value computed with step in residuals removed.

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