M31
The galaxy M31 (NGC 0224), also known as the "Andromeda Galaxy", belongs to the Hubble class SA(s)b. Its disk is inclined by 74° - 78° with respect to the sky plane. This galaxy has a distance median value of 0.776 Mpc and hence is the nearest spiral galaxy on sky. The strongly polarized radio "ring" is a signature of a dynamo-generated magnetic field.
87.3 cm
![M31 Total Intensity at 87.3 cm (343.4 MHz), WSRT, Resolution 230''×290'', Gießübel et al. 2013](/42329/original-1518434894.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzI5fQ%3D%3D--7319701e17d7356cd58a60f4c3f710850fa9ad1f)
M31 Total Intensity at 87.3 cm (343.4 MHz), WSRT, Resolution 230''×290'', Gießübel et al. 2013
M31 Total Intensity at 87.3 cm (343.4 MHz), WSRT, Resolution 230''×290'', Gießübel et al. 2013
© MPIfR, Bonn
© MPIfR, Bonn
M31 87.3 cm 230" I
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20.5 cm
![Total Intensity at 20.5 cm (1.46 GHz), VLA D-array, Resolution 45'', Beck et al. 1998](/42292/original-1518434876.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMjkyfQ%3D%3D--30823032257f35b72068e836c091a8332b792c88)
Total Intensity at 20.5 cm (1.46 GHz), VLA D-array, Resolution 45'', Beck et al. 1998
Total Intensity at 20.5 cm (1.46 GHz), VLA D-array, Resolution 45'', Beck et al. 1998
© MPIfR, Bonn
© MPIfR, Bonn
![Polarized Intensity at 20.5 cm (1.46 GHz), VLA D-array, Resolution 45'', Beck et al. 1998](/42247/original-1535024340.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMjQ3fQ%3D%3D--80ac7482a7a0d49b85fe87a677a5fe96fbfda067)
Polarized Intensity at 20.5 cm (1.46 GHz), VLA D-array, Resolution 45'', Beck et al. 1998
Polarized Intensity at 20.5 cm (1.46 GHz), VLA D-array, Resolution 45'', Beck et al. 1998
© MPIfR, Bonn
© MPIfR, Bonn
M31 20.5 cm 45" I
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M31 20.5 cm 45" PI
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11.1 cm
![Total Intensity at 11.1 cm (2.70 GHz), Effelsberg, Resolution 5', Beck et al. 1982](/42346/original-1518434894.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzQ2fQ%3D%3D--355ae6a142d5ac6a7c0a3e19760e737df368007a)
Total Intensity at 11.1 cm (2.70 GHz), Effelsberg, Resolution 5', Beck et al. 1982
Total Intensity at 11.1 cm (2.70 GHz), Effelsberg, Resolution 5', Beck et al. 1982
© MPIfR, Bonn
© MPIfR, Bonn
M31 11.1 cm 5' I
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![Total Intensity at 11.1 cm (2.70 GHz), Effelsberg, Resolution 5', Beck et al. 1982. Many bright background sources that are not related to M31 have been subtracted.](/42319/original-1518434894.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzE5fQ%3D%3D--7b5f26d9393c248051396852255efc8507f3eee8)
Total Intensity at 11.1 cm (2.70 GHz), Effelsberg, Resolution 5', Beck et al. 1982. Many bright background sources that are not related to M31 have been subtracted.
© MPIfR, Bonn
© MPIfR, Bonn
![Polarized Intensity at 11.1 cm (2.70 GHz), Effelsberg, Resolution 5', Beck 1982. A few polarized background sources that are not related to M31 have been subtracted.](/42314/original-1518434894.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzE0fQ%3D%3D--d866a3d695bb4f2c2abe27067dd3a1f162291858)
Polarized Intensity at 11.1 cm (2.70 GHz), Effelsberg, Resolution 5', Beck 1982. A few polarized background sources that are not related to M31 have been subtracted.
© MPIfR, Bonn
© MPIfR, Bonn
M31 SS 11.1 cm 5' I
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M31 SS 11.1 cm 5' PI
- JPG-Download 207.27 kB
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6.2 cm
![Total Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003](/42301/original-1535099021.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzAxfQ%3D%3D--d4db9805ab547bd96278bf54e06ee3a63e2b82be)
Total Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003
Total Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003
© MPIfR, Bonn
© MPIfR, Bonn
![Polarized Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003](/42296/original-1518434876.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMjk2fQ%3D%3D--d49290104c8be46375e4b0ed9237175a32642b9c)
Polarized Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003
Polarized Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003
© MPIfR, Bonn
© MPIfR, Bonn
M31 6.2 cm 3' I
- JPG-Download 233.94 kB
- FITS-Download 677.81 kB
M31 6.2 cm 3' PI
- JPG-Download 193.84 kB
- FITS-Download 691.88 kB
![Total Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003. Many bright background sources that are not related to M31 have been subtracted.](/42324/original-1518434894.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzI0fQ%3D%3D--3030e36b7793b71a43ca232cb9e06a471a50b280)
Total Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003. Many bright background sources that are not related to M31 have been subtracted.
© MPIfR, Bonn
© MPIfR, Bonn
![Polarized Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003. A few polarized background sources that are not related to M31 have been subtracted.](/42361/original-1518434895.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzYxfQ%3D%3D--cd789de5fa7f274927e7be55f6d15aa6f8a32646)
Polarized Intensity at 6.2 cm (4.85 GHz), Effelsberg, Resolution 3', Berkhuijsen et al. 2003. A few polarized background sources that are not related to M31 have been subtracted.
© MPIfR, Bonn
© MPIfR, Bonn
M31 SS 6.2 cm 3' I
- JPG-Download 223.97 kB
- FITS-Download 497.81 kB
M31 SS 6.2 cm 3' PI
- JPG-Download 207.65 kB
- FITS-Download 497.81 kB
![Total Intensity (Central Region) at 6.2 cm (4.85 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014](/42357/original-1518434895.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzU3fQ%3D%3D--acd05903d96eb020b0773391c71a7d0a61fbd467)
Total Intensity (Central Region) at 6.2 cm (4.85 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014
Total Intensity (Central Region) at 6.2 cm (4.85 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014
© MPIfR, Bonn
© MPIfR, Bonn
![Polarized Intensity (Central Region) at 6.2 cm (4.85 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014](/42352/original-1518434894.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzUyfQ%3D%3D--c824bda351c0781f66bdaac207bd904c34034f61)
Polarized Intensity (Central Region) at 6.2 cm (4.85 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014
Polarized Intensity (Central Region) at 6.2 cm (4.85 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014
© MPIfR, Bonn
© MPIfR, Bonn
M31 6.2 cm 15" I
- JPG-Download 213.92 kB
- FITS-Download 1.15 MB
M31 6.2 cm 15" PI
- JPG-Download 292.0 kB
- FITS-Download 1.29 MB
3.6 cm
![Total Intensity (Central Region) at 3.6 cm (8.35 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014](/42311/original-1518434894.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzExfQ%3D%3D--366602c183dc2126e906791aff90e09784e05715)
Total Intensity (Central Region) at 3.6 cm (8.35 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014
Total Intensity (Central Region) at 3.6 cm (8.35 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014
© MPIfR, Bonn
© MPIfR, Bonn
![Polarized Intensity (Central Region) at 3.6 cm (8.35 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014](/42306/original-1518434893.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjQyMzA2fQ%3D%3D--1884ba6761ffb9e0dbb717b789dc54b4931f6292)
Polarized Intensity (Central Region) at 3.6 cm (8.35 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014
Polarized Intensity (Central Region) at 3.6 cm (8.35 GHz), Combination of VLA and Effelsberg, Resolution 15'', Gießübel & Beck 2014
© MPIfR, Bonn
© MPIfR, Bonn
M31 3.6 cm 15" I
- JPG-Download 227.85 kB
- FITS-Download 1.09 MB
M31 3.6 cm 15" PI
- JPG-Download 261.3 kB
- FITS-Download 1.16 MB