Sixquarks in neutron stars

Neutron star parameters are calculated with regard to the existence of recently discovered sixquarks-narrow dibaryon resonances. It is shown that as compared to the previous calculations, the maximum masses and radii of neutron stars are notably reduced, compact objects of very low masses appear to be stable. It is shown that at a certain stage of the star collapse an instability occurs which leads to the second type Supernova flare. It is also shown that in a certain pressure interval two phases exist: neutron and neutron-sixquark ones, and the first type Supernova flares can be interpreted as a phase transition in the external layers of the neutron stars. 10 refs.; 12 figs