The anisotropy of galaxy orientation in the Coma/A1367 supercluster

The spatial orientations of the galactic planes for galaxies in the Coma./A 1367 supercluster have been determined. Owing to the ambiguity in the deter mination of the inclination angle, two possible orientations of the normal to the galaxy plane were found. Two angles, the polar angle delta (D) and t he azimuthal angle eta, describe the orientation of normals. The distributi on of both angles has been checked for isotropy. It is shown that the distr ibution is not isotropic. The same alignment is observed for samples contai ning elliptical and lenticular galaxies and for samples containing only spi rals, as well as for samples containing galaxies located in different parts of the supercluster. In the case of spiral galaxies, the anisotropy shows that galaxy rotation axes strongly favour alignment with the main plane of the supercluster. The projection of the rotation axes on to the main plane of the supercluster has a preferential direction pointing towards the super cluster, but this effect is weak. A comparison with theory is also presente d.