论文标题
搜索CMB镜头和$γ$ ray排放的原始黑洞信号
Searching for Signal of Primordial Black Hole from CMB Lensing and $γ$-ray Emissions
论文作者
论文摘要
在此$ \ textit {letter} $中，我们通过将霍金蒸发和宇宙微波背景（CMB）的透镜效果（CMB）中的MEV能量带中的$γ$ - 雷排放相关联，搜索原始黑洞（PBHS）的信号。我们在计算中尽可能多地使用天体物理模型的保守案例，因为潜在的天体物理起源主导了MEV能量带中观察到的发射。通过仔细讨论与不同PBHS群众相对应的适当能量带，值得期望对Schwarzschild PBH的比例严格限制，质量范围为$ 10^{16} -5 \ 5 \ times10^{17} {17} {17} \ \，{\ rm G} $，通过模拟未来的cmb-s project $ cmb-S4 e-astrogam。此外，我们还考虑使用旋转的PBHS模型，并发现PBHS与CMB镜头与$γ$ -Ray -Ray的相关性的约束能力可以通过另一个数量级来提高，这可以用PBHS分数限制在质量范围内的差距$ 5 \ types 10^17^tieres compter范围，这可能会填补PBHS的差异限制。 10^{18} \，{\ rm g} $。
In this $\textit{Letter}$, we search for the signal of the primordial black holes (PBHs) by correlating the $γ$-ray emissions in the MeV energy band produced by the Hawking evaporation and the lensing effect of the cosmic microwave background (CMB). We use the conservative case of the astrophysical model as much as possible in the calculations, since the potential astrophysical origins dominate the observed emission in the MeV energy band. By carefully discussing the appropriate energy bands corresponding to different PBHs masses, it is worth expecting a tight constraint on the fraction of the Schwarzschild PBHs in the mass range of $10^{16} - 5\times10^{17}\,{\rm g}$, by simulations of the sensitivity of the future CMB-S4 project and the $γ$-ray telescope e-ASTROGAM. Furthermore, we also consider the PBHs model with spins, and find that the constraining ability of the PBHs fraction from the correlation between CMB lensing and $γ$-ray emissions can be improved by another order of magnitude, which could importantly fill the gaps with PBHs fraction limits in the mass range of $5\times 10^{17} - 2\times 10^{18}\,{\rm g}$.
