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Table 5

Detections of polarised background sources in the M 51 field with DP showing the depolarisation factor for the respective sources.

Name RA Dec I [mJy] φ [rad/m2] PI [mJy] p[%] RM [rad/m2] PI [mJy] p[%] DP
(J2000) (J2000) (Taylor et al. 2009)

J132626 + 473741 47°37′41.82′′ 44.2 ± 0.85 + 3.2 ± 0.1 1.6 ± 0.1 2.9 ± 0.2
J133128 + 454002 45°40′4.8′′ 313 ± 6.26 −3.8 ± 0.1 0.89 ± 0.16 0.28 ± 0.05
J133258 + 454201 45°42′2.7′′ 974 ± 19 −5.2 ± 0.1 1.4 ± 0.2 0.14 ± 0.02
J133707 + 485801 48°58′04.26′′ 1500 ± 30 + 9.2 ± 0.1 3.52 ± 0.28 0.23 ± 0.02 −8.9 ± 3.2 16.9 ± 0.3 6.0 ± 0.1 0.038
J133920 + 464115 46°41′19.82′′ 219 ± 4.4 + 20.5 ± 0.1 5.28 ± 0.15 2.6 ± 0.1 5.5 ± 7.3 7.06 ± 0.23 7.7 ± 0.25 0.196
B31337 + 469 (core) 46°40′08.40′′ 22.5 ± 3.9 12.66 ± 0.23 3.66 ± 0.07
4C+ 47.38 46°57′16.8′′ 3600 ± 72 + 23.5 ± 0.1 6.4 ± 0.3 0.17 ± 0.01 −30.6 ± 1.4 37.25 ± 0.24 5.8 ± 0.1 0.029

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