Planck 2013 结果. XVII. 大尺度结构的引力透镜效应
宇宙学与河外天体物理
2015-06-15 v2
摘要
在 Planck 探测的角分角尺度上，CMB 各向异性受到引力透镜的轻微扰动。在此我们展示了对该效应的详细研究，在 100、143 和 217 GHz 频段独立探测到透镜效应，总体显著性大于 。我们利用透镜效应引起的温度-梯度相关重建了一张（含噪声的）CMB 透镜势图，该图提供了直至 CMB 最后散射面的质量分布的积分测量。我们的透镜势图与其他质量示踪剂显著相关，我们使用几个有代表性的大尺度结构示踪剂证明了这一点。我们估计了透镜势的功率谱，发现与 Planck 温度功率谱最佳拟合 LCDM 模型的预期普遍吻合，表明在 处的该测量正确预测了作为透镜势源的低红移、晚时结构的性质。与温度功率谱结合时，我们的测量为参数约束提供了打破简并的能力；它将仅使用 CMB 对曲率的约束改善了两倍，并部分打破了原初扰动功率谱幅度与再电离光深之间的简并，使得能够独立于大尺度偏振数据测量再电离光深。在不使用尺度信息的情况下，我们的测量相当于对透镜势功率谱幅度的 4% 约束，或对 处物质涨落 RMS 幅度的 2% 约束。
引用
@article{arxiv.1303.5077,
title = {Planck 2013 results. XVII. Gravitational lensing by large-scale structure},
author = {Planck Collaboration and P. A. R. Ade and N. Aghanim and C. Armitage-Caplan and M. Arnaud and M. Ashdown and F. Atrio-Barandela and J. Aumont and C. Baccigalupi and A. J. Banday and R. B. Barreiro and J. G. Bartlett and S. Basak and E. Battaner and K. Benabed and A. Benoît and A. Benoit-Lévy and J. -P. Bernard and M. Bersanelli and P. Bielewicz and J. Bobin and J. J. Bock and A. Bonaldi and L. Bonavera and J. R. Bond and J. Borrill and F. R. Bouchet and M. Bridges and M. Bucher and C. Burigana and R. C. Butler and J. -F. Cardoso and A. Catalano and A. Challinor and A. Chamballu and L. -Y Chiang and H. C. Chiang and P. R. Christensen and S. Church and D. L. Clements and S. Colombi and L. P. L. Colombo and F. Couchot and A. Coulais and B. P. Crill and A. Curto and F. Cuttaia and L. Danese and R. D. Davies and R. J. Davis and P. de Bernardis and A. de Rosa and G. de Zotti and T. Déchelette and J. Delabrouille and J. -M. Delouis and F. -X. Désert and C. Dickinson and J. M. Diego and H. Dole and S. Donzelli and O. Doré and M. Douspis and J. Dunkley and X. Dupac and G. Efstathiou and T. A. Enßlin and H. K. Eriksen and F. Finelli and O. Forni and M. Frailis and E. Franceschi and S. Galeotta and K. Ganga and M. Giard and G. Giardino and Y. Giraud-Héraud and J. González-Nuevo and K. M. Górski and S. Gratton and A. Gregorio and A. Gruppuso and J. E. Gudmundsson and F. K. Hansen and D. Hanson and D. Harrison and S. Henrot-Versillé and C. Hernández-Monteagudo and D. Herranz and S. R. Hildebrandt and E. Hivon and S. Ho and M. Hobson and W. A. Holmes and A. Hornstrup and W. Hovest and K. M. Huffenberger and T. R. Jaffe and A. H. Jaffe and W. C. Jones and M. Juvela and E. Keihänen and R. Keskitalo and T. S. Kisner and R. Kneissl and J. Knoche and L. Knox and M. Kunz and H. Kurki-Suonio and G. Lagache and A. Lähteenmäki and J. -M. Lamarre and A. Lasenby and R. J. Laureijs and A. Lavabre and C. R. Lawrence and J. P. Leahy and R. Leonardi and J. León-Tavares and J. Lesgourgues and A. Lewis and M. Liguori and P. B. Lilje and M. Linden-Vørnle and M. López-Caniego and P. M. Lubin and J. F. Macías-Pérez and B. Maffei and D. Maino and N. Mandolesi and A. Mangilli and M. Maris and D. J. Marshall and P. G. Martin and E. Martínez-González and S. Masi and S. Matarrese and F. Matthai and P. Mazzotta and A. Melchiorri and L. Mendes and A. Mennella and M. Migliaccio and S. Mitra and M. -A. Miville-Deschênes and A. Moneti and L. Montier and G. Morgante and D. Mortlock and A. Moss and D. Munshi and P. Naselsky and F. Nati and P. Natoli and C. B. Netterfield and H. U. Nørgaard-Nielsen and F. Noviello and D. Novikov and I. Novikov and S. Osborne and C. A. Oxborrow and F. Paci and L. Pagano and F. Pajot and D. Paoletti and B. Partridge and F. Pasian and G. Patanchon and O. Perdereau and L. Perotto and F. Perrotta and F. Piacentini and M. Piat and E. Pierpaoli and D. Pietrobon and S. Plaszczynski and E. Pointecouteau and G. Polenta and N. Ponthieu and L. Popa and T. Poutanen and G. W. Pratt and G. Prézeau and S. Prunet and J. -L. Puget and A. R. Pullen and J. P. Rachen and R. Rebolo and M. Reinecke and M. Remazeilles and C. Renault and S. Ricciardi and T. Riller and I. Ristorcelli and G. Rocha and C. Rosset and G. Roudier and M. Rowan-Robinson and J. A. Rubiño-Martín and B. Rusholme and M. Sandri and D. Santos and G. Savini and D. Scott and M. D. Seiffert and E. P. S. Shellard and L. D. Spencer and J. -L. Starck and V. Stolyarov and R. Stompor and R. Sudiwala and R. Sunyaev and F. Sureau and D. Sutton and A. -S. Suur-Uski and J. -F. Sygnet and J. A. Tauber and D. Tavagnacco and L. Terenzi and L. Toffolatti and M. Tomasi and M. Tristram and M. Tucci and J. Tuovinen and G. Umana and L. Valenziano and J. Valiviita and B. Van Tent and P. Vielva and F. Villa and N. Vittorio and L. A. Wade and B. D. Wandelt and M. White and S. D. M. White and D. Yvon and A. Zacchei and A. Zonca},
journal= {arXiv preprint arXiv:1303.5077},
year = {2015}
}
备注
Matches version accepted by A&A