利用CORE探索宇宙起源：观测者本动的影响
宇宙学与河外天体物理
2019-08-13 v3
摘要
我们讨论了由于观测者相对于CMB静止系的特殊运动（本动）所引起的增强效应对CMB、CIB和热SZ效应的影响。我们研究了未来CMB空间任务开辟的科学前景，重点关注CORE提案。像CORE这样的任务在宽频带上的高分辨率所提供的灵敏度提升，将提供更准确的CMB偶极估计。将增强效应扩展到偏振和交叉相关，将使得能够更稳健地确定纯速度驱动效应，这些效应与内禀CMB偶极不简并，使我们能够实现13的信噪比（S/N）；这比Planck探测有所改进，并且基本上等同于理想宇宙方差极限实验直到多极矩l=2000的表现。精确的频率间定标将提供约束甚至探测CMB光谱畸变的机会，特别是来自宇宙再电离的畸变，因为偶极谱的频率依赖性，而无需求助于精确的绝对定标。相对于COBE-FIRAS在恢复畸变参数方面的预期改进（原则上，对于具有CORE配置的理想实验可达数百倍）范围从数倍到约50倍，取决于前景扣除和相对定标的质量。即使在前景扣除和相对定标精度均为1%且角尺度为1度的情况下，我们发现像CORE这样的任务的偶极分析将能够比当前基于FIRAS的结果将CIB谱振幅的恢复提高17倍。除了像CORE这样的任务用于这些分析的科学潜力外，还讨论了与其他计划和进行中项目的协同作用。
引用
@article{arxiv.1704.05764,
title = {Exploring cosmic origins with CORE: effects of observer peculiar motion},
author = {C. Burigana and C. S. Carvalho and T. Trombetti and A. Notari and M. Quartin and G. De Gasperis and A. Buzzelli and N. Vittorio and G. De Zotti and P. de Bernardis and J. Chluba and M. Bilicki and L. Danese and J. Delabrouille and L. Toffolatti and A. Lapi and M. Negrello and P. Mazzotta and D. Scott and D. Contreras and A. Achucarro and P. Ade and R. Allison and M. Ashdown and M. Ballardini and A. J. Banday and R. Banerji and J. Bartlett and N. Bartolo and S. Basak and M. Bersanelli and A. Bonaldi and M. Bonato and J. Borrill and F. Bouchet and F. Boulanger and T. Brinckmann and M. Bucher and P. Cabella and Z. -Y. Cai and M. Calvo and G. Castellano and A. Challinor and S. Clesse and I. Colantoni and A. Coppolecchia and M. Crook and G. D'Alessandro and J. -M. Diego and A. Di Marco and E. Di Valentino and J. Errard and S. Feeney and R. Fernandez-Cobos and S. Ferraro and F. Finelli and F. Forastieri and S. Galli and R. Genova-Santos and M. Gerbino and J. Gonzalez-Nuevo and S. Grandis and J. Greenslade and S. Hagstotz and S. Hanany and W. Handley and C. Hernandez-Monteagudo and C. Hervias-Caimapo and M. Hills and E. Hivon and K. Kiiveri and T. Kisner and T. Kitching and M. Kunz and H. Kurki-Suonio and L. Lamagna and A. Lasenby and M. Lattanzi and J. Lesgourgues and M. Liguori and V. Lindholm and M. Lopez-Caniego and G. Luzzi and B. Maffei and N. Mandolesi and E. Martinez-Gonzalez and C. J. A. P. Martins and S. Masi and D. McCarthy and A. Melchiorri and J. -B. Melin and D. Molinari and A. Monfardini and P. Natoli and A. Paiella and D. Paoletti and G. Patanchon and M. Piat and G. Pisano and L. Polastri and G. Polenta and A. Pollo and V. Poulin and M. Remazeilles and M. Roman and J. -A. Rubino-Martin and L. Salvati and A. Tartari and M. Tomasi and D. Tramonte and N. Trappe and C. Tucker and J. Valiviita and R. Van de Weijgaert and B. van Tent and V. Vennin and P. Vielva and K. Young and M. Zannoni},
journal= {arXiv preprint arXiv:1704.05764},
year = {2019}
}
备注
61+5 pages, 17 figures, 25 tables, 8 sections, 5 appendices. In press on JCAP - Version 3 - Minor changes, affiliations fixed, references updated - version in line with corrected proofs