论文标题
重新访问次级CMB畸变,导致的Sunyaev-Zel'dovich效应在恢复之前从类星体泡中产生
Revisiting secondary CMB distortions due to kinetic Sunyaev-Zel'dovich effect from quasar bubbles before reionization
论文作者
论文摘要
我们讨论了由于动力学的Sunyaev-Zel'Dovich(KSZ)在宇宙恢复之前,由于动力学Sunyaev-Zel'Dovich(KSZ)效应引起的次级宇宙微波背景(CMB)各向异性。气泡创建了局部电离调制,该调制以大规模结构线性散装流动并充当KSZ的来源。我们使用基于光晕模型的类星体丰度的描述来改进对这种效果的计算,并发现从气泡中,KSZ失真功率谱从气泡中占主导地位。 However, the shape of the two $C_\ell$'s are very different with the quasar bubble $C_\ell$ having a peak at $\ell \approx 500-700$ whereas the $C_\ell$ due to patchy reionization flattening out at $\ell > 1000$ thus making it plausible to separate the two using $C_\ell$ template-fitting in a future survey like CMB-HD.接下来,我们查看CMB上单个类星体气泡的烙印,并表明可以在CMB-HD(例如CMB-HD)中以高分辨率,雄心勃勃的努力进行检测。 CMB中高红移类星体气泡的检测将带有免费信息,以检测其在HI或Lyman-$α$中的检测,并且可以使用联合分析来打破参数归化性。
We discuss the secondary cosmic microwave background (CMB) anisotropy due to kinetic Sunyaev-Zel'dovich (kSZ) effect from ionized bubbles around individual quasars prior to the reionization of the Universe. The bubbles create local ionization modulations which move with the large scale structure linear bulk flow and act as sources for kSZ. We improve upon previous calculations of this effect, using a halo model based description of quasar abundance, and find that the kSZ distortion power spectrum, $C_\ell$, from the bubbles to be sub-dominant to kSZ from patchy reionization driven by galaxies. However, the shape of the two $C_\ell$'s are very different with the quasar bubble $C_\ell$ having a peak at $\ell \approx 500-700$ whereas the $C_\ell$ due to patchy reionization flattening out at $\ell > 1000$ thus making it plausible to separate the two using $C_\ell$ template-fitting in a future survey like CMB-HD. Next, we look at the imprint of a single quasar bubble on the CMB and show that it can be detected in a high-resolution, ambitious effort like CMB-HD. A detection of a high redshift quasar bubble in the CMB would carry complimentary information to its detection in HI or Lyman-$α$ and a joint analysis can be used to break parameter degeneracies.