Bibcode
                                    
                            García de La Rosa, J. I.
    Referencia bibliográfica
                                    Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences, No. 66, p. 21 - 23
Fecha de publicación:
    
                        0
            
                        1987
            
  Número de citas
                                    0
                            Número de citas referidas
                                    0
                            Descripción
                                    The following are the main findings: (1) Fragments with typically
1021Mx preserve their identity and even survive to the decay
of the sunspots. (2) Each fragment has a very precise location in the
whole ensemble. (3) The incomplete coalescense of the fragments leaves
interstices which are penetrated by hot gas. This gives a natural
explanation of the umbral fine structures (ie. umbral dots and light
bridges).