Chromospheric inhomogeneities: origins and dynamics

Abstract

Observations of the solar chromosphere in selected spectral lines reveal a large number of inhomogeneities. These inhomogeneities owe their origin to local a large enhancement of the Photospheric magnetic fields. The detection of chromospheric inhomogeneities in other sun-like stars can be considered as the evidence for magnetic structures in such stars. This article gives a brief description of solar chromospheric structures as well as the evidence for similar inhomogeneities in stellar chromospheres.