Tachyons in Astrophysics

In paper 1 (Steyaert 1999) we showed that the tachyon (v>c) concept was a valid one with numerous applications in astrophysics. If every star is emitting a copious amount of tachyons. one for each central photon, then it could well be that the dark matter problem is sol\ ed by energetic tachyons surrounding the Galaxy and the cluster of galaxies. At the beginning of the years 1980, nuclear physicists have obtained a value of the compressibility parameter K of nuclear matter. They found a value of 300 ± 25 MeV at variance with the commonly accepted value of 210 ± 30 MeV. In this short note we want to show that it is possible by combining the observation of the jet at 0.2601 c ejected by SS433 with parameters of the neutron stars to determine K by an other way and to find again a value around 300 MeV. Moreover the radius and mass of the neutron star imbedded in SS433 are found to be 11.4 R_sun and 2.288 M_sun respectively.