The reionization and the large-scale structure formation of the universe are consi-dered as results of the secondary effects of cosmic string. Primordial supermassive (～10~6M_⊙) stars and star groups M(～10^(10)M_⊙...The reionization and the large-scale structure formation of the universe are consi-dered as results of the secondary effects of cosmic string. Primordial supermassive (～10~6M_⊙) stars and star groups M(～10^(10)M_⊙) can be formed immediately after recombinationowning to the accretions of single-string loops. The ultraviolet radiation of the starscan reionize the interstellar medium around them. The explosions of the supermassivestars sweep the interstellar medium to the shock-wave front to form mass shells of largemass and high density; the fragmentations of the mass shells lead to formations of newstars and new explosions. It is shown, when Grand Unification Theory (GUT) stringsare taken to be the seeds, the observed high ionization and large-scale cellular structureof galaxy distribution in the universe can be realized. For the usually chosen parameters,this scenario seems reasonable and imperative.展开更多
文摘The reionization and the large-scale structure formation of the universe are consi-dered as results of the secondary effects of cosmic string. Primordial supermassive (～10~6M_⊙) stars and star groups M(～10^(10)M_⊙) can be formed immediately after recombinationowning to the accretions of single-string loops. The ultraviolet radiation of the starscan reionize the interstellar medium around them. The explosions of the supermassivestars sweep the interstellar medium to the shock-wave front to form mass shells of largemass and high density; the fragmentations of the mass shells lead to formations of newstars and new explosions. It is shown, when Grand Unification Theory (GUT) stringsare taken to be the seeds, the observed high ionization and large-scale cellular structureof galaxy distribution in the universe can be realized. For the usually chosen parameters,this scenario seems reasonable and imperative.
