论文部分内容阅读
1 .IntroductionOneofthemostimportanttasksofmodernastronomyistoprobetheveryearlyuniverse.AccordingtothestandardBigBangtheory ,primordialmatterconsistedofabout76 %hydrogenand 2 4 %heliumbyweight,alongwithtracequantitiesofdeuteriumandlithium .Someofthisprimo