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Table 1.

Radio continuum observational parameters of M 51.

Frequency (GHz) 2–4 (2.6–3.6 after flagging)
Bandwidth (MHz) 2000 (1000 after flagging)
No. of spectral windows 16 (9 after flagging)
Spectral resolution (MHz) 2
Central frequency (GHz) 3.06
Array configurations C; D
Observing time (minutes) 180; 90
Observing dates 26 Nov./14 Dec. 2014;
09/10 Oct. 2015
Total flux density calibrator 3C 286
Polarization angle calibrator 3C 286

Resolution in final maps 10″ × 7″ 15″
rms in Stokes I 30 60
(μJy beam−1)
rms in Stokes Q and U 6 9
(μJy beam−1)

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