NGC6946

The galaxy NGC 6946 belongs to the Hubble class SAB(rs)cd. Its disk is inclined by 38° with respect to the sky plane. This galaxy has a distance median value of 5.5 Mpc. It hosts two "magnetic arms" between the optical spiral arms that are best seen in polarized radio emission at 6.2 cm and 3.5 cm.

21.4 cm

Total Intensity at 21.4 cm (1.40 GHz), Effelsberg, Resolution 9.3', Beck 2007
Polarized Intensity at 21.4 cm (1.40 GHz), Effelsberg, Resolution 9.3', Beck 2007
Most of the extended polarized emission originates from the Milky Way foreground.

NGC 6946 21.4 cm 9.3' I

NGC 6946 21.4 cm 9.3' PI

20.5 cm

Total Intensity at 20.5 cm (1.46 GHz), VLA, Resolution 15", Beck 1991

NGC 6946 20.5 cm 15" I

Total Intensity at 20.5 cm (1.46 GHz), VLA, Resolution 15", Beck 1991
Polarized Intensity at 20.5 cm (1.46 GHz), VLA, Resolution 15", Beck 1991

NGC 6946 20.5 cm 15" full I

NGC 6946 20.5 cm 15" full PI

11.2 cm

Total Intensity at 11.2 cm (2.68 GHz), Effelsberg, Resolution 5', Beck 2007
Polarized Intensity at 11.2 cm (2.68 GHz), Effelsberg, Resolution 5', Beck 2007

NGC 6946 11.2 cm 5' I

NGC 6946 11.2 cm 5' PI

6.2 cm

Total Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 144", Beck 2007
Polarized Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 144", Beck 2007

NGC 6946 6.2 cm 144" I

NGC 6946 6.2 cm 144" PI

Total Intensity at 6.2 cm (4.86 GHz), Combination of Effelsberg and VLA, Resolution 15", Beck 2007
Polarized Intensity at 6.2 cm (4.86 GHz), Combination of Effelsberg and VLA, Resolution 15", Beck 2007

NGC 6946 6.2 cm 15" I

NGC 6946 6.2 cm 15" PI

3.5 cm

Total Intensity at 3.5 cm (8.46 GHz), Combination of Effelsberg and VLA, Resolution 15", Beck 2007
Polarized Intensity at 3.5 cm (8.46 GHz), Combination of Effelsberg and VLA, Resolution 15", Beck 2007

NGC 6946 3.5 cm 15" I

NGC 6946 3.5 cm 15" PI

2.8 cm

Total Intensity at 2.8 cm (10.55 GHz), Effelsberg, Resolution 68", Ehle & Beck 1993
Polarized Intensity at 2.8 cm (10.55 GHz), Effelsberg, Resolution 68", Ehle & Beck 1993

NGC 6946 2.8 cm 68" I

NGC 6946 2.8 cm 68" PI

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