M51

The galaxy M51 (NGC 5194), also known as the "Whirlpool Galaxy", belongs to the Hubble class SA(s)bc, but is peculiar due to interaction with its companion galaxy NGC 5195  (to the north). Its disk is inclined by -20° with respect to the sky plane. The galaxy has a distance median value of 7.9 Mpc. M51 is famous for its prominent spiral arms in the optical and the radio range.

151 MHz

Total Intensity at 151 MHz (Central Frequency, Bandwidth 115 – 175 MHz), LOFAR, Resolution 20'', Mulcahy et al. 2014. This was the first galaxy observed with the LOFAR telescope.

M51 151 MHz 20" I

20.5 cm

Total Intensity at 20.5 cm (1.46 GHz), VLA D-Configuration, Resolution 15'', Fletcher et al. 2011
Polarized Intensity at 20.5 cm (1.46 GHz), VLA D-Configuration, Resolution 15'', Fletcher et al. 2011

M51 20.5 cm 15" I

M51 20.5 cm 15" PI

6.2 cm

Total Intensity at 6.2 cm (4.85 GHz), Combination of VLA and Effelsberg, Resolution 8'', Fletcher et al. 2011
Polarized Intensity at 6.2 cm (4.85 GHz), Combination of VLA and Effelsberg, Resolution 8'', Fletcher et al. 2011

M51 6.2 cm 8" I

M51 6.2 cm 8" PI

3.6 cm

Total Intensity at 3.6 cm (8.35 GHz), Combination of VLA and Effelsberg, Resolution 8'', Fletcher et al. 2011
Polarized Intensity at 3.6 cm (8.35 GHz), Combination of VLA and Effelsberg, Resolution 8'', Fletcher et al. 2011

M51 3.6 cm 8" I

M51 3.6 cm 8" PI

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