论文标题
Nanograv信号作为惊人的原始黑洞的合并
NANOGrav signal as mergers of Stupendously Large Primordial Black Holes
论文作者
论文摘要
我们为Nanograv检测到的信号作为随机引力波背景提供了解释，该背景是原始的“大型黑洞”（质量$ M \ sim（10^{11} -10} -10^{12}} {12}）M _ {\ odot} $的原始“巨大的大黑洞”（厚）（10^{11} -10^{12}）$，并相应地到ground $ 0.1 dark cartecy ofd carte off carte dark ofd off cartect off carte dack dack natch dack natch dack natch dack natch dack natch dack natch dack natch dack natch axcard axcard。我们表明，如果导致这些BHS的扰动是由于单场通货膨胀模型中预期的非高斯波动产生的，从而产生了这些BHS的扰动，则可能会超过CMB的严格界限。虽然来自$ M \ Lessim 10^{11} m _ {\ odot} $的随机背景的尾巴既适合纳米格拉夫，又尊重$μ$扭曲的限制，但它们被排除在大规模结构约束中。
We give an explanation for the signal detected by NANOGrav as the stochastic gravitational wave background from binary mergers of primordial "Stupendously Large Black Holes" (SLABs) of mass $M\sim(10^{11}-10^{12})M_{\odot}$, and corresponding to roughly $0.1\%$ of the dark matter. We show that the stringent bounds coming from $μ$ distortions of the CMB can be surpassed if the perturbations resulting in these BHs arise from the non-Gaussian distribution of fluctuations expected in single field models of inflation generating a spike in the power spectrum. While the tail of the stochastic background coming from binaries with $M\lesssim 10^{11}M_{\odot}$ could both fit NANOGrav and respect $μ$ distortions limits, they become excluded from large scale structure constraints.
