Magnetic flux tubes and their relation to continuum and photospheric features

An investigation is made of the relationship between photospheric 'filigree' light points, line-center brightness, and magnetic field, as inferred from sets of individual images and films showing a distinct difference between two classes of magnetic regions. While in the first such region the vertical velocity field is average and the magnetic field is mostly confined in narrow lanes, the granulation pattern of the second scale is much smaller, the vertical velocity is lower, and the magnetic field is less compact. Where granulation is normal, excellent correlation is obtained between bright continuum, line-center, and magnetic field line structure.