【摘要】 研究了暴涨宇宙学中重新加热能标 ρreh的不确定性对原初谱和宇宙微波背景辐射 (CMB)的效应 ,并着重指出了在谱指数跑动大的模型中CMB观测可以给出 ρreh一个很强的限制 .更多还原

【Abstract】 Inflation plays a significant role in interpreting current observations. Despite the success of inflation theory, the reheating energy scale ρ reh is largely uncertain today. This consequently induces uncertainty to the primordial spectrum when achieving primordial spectra from inflation models. In this paper, we study the effects of this uncertainty on the primordial spectrum and cosmic microwave background (CMB) radiation. For the primordial spectra with small running indices, our result shows that the effect is negligible if the inflation parameter V 0 can be normalized freely. But for models with large running indices, we find that ρ reh can be highly restricted by the CMB observations.更多还原