Abstract
A substantial concentration of galaxies towardl ii=320°,b ii=+7°, with a mean radial velocity of 4000 km s−1, has earlier been nicknamed the ‘Great Attractor’ — it is a nearby supercluster of galaxies. Here, an attempt is made to detect an excess Faraday rotation measure that could be attributed to the magnetic field and thermal gas in the space between the galaxies inside the Great Attractor supercluster. Only an upper limit to the rotation measure, of at most 8 rad m−2, could be placed on the Great Attractor supercluster, implying in turn an upper limit on the supercluster magnetic field, of at most 0.1 microgauss (ordered component only).
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Vallee, J.P. Upper limits to the rotation measure and magnetism of the Great Attractor supercluster. Astrophys Space Sci 152, 9–13 (1989). https://doi.org/10.1007/BF00645981
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DOI: https://doi.org/10.1007/BF00645981