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arXiv 1508.03375astro-ph.CO
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Planck 2013结果XXXI。普朗克数据的一致性

Planck 2013 results. XXXI. Consistency of the Planck data

Planck Collaboration, P. A. R. Ade, M. Arnaud, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, E. Battaner, K. Benabed, A. Benoit-Levy, J. -P. Bernard,… 展开作者

Planck Collaboration, P. A. R. Ade, M. Arnaud, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, E. Battaner, K. Benabed, A. Benoit-Levy, J. -P. Bernard, M. Bersanelli, P. Bielewicz, J. R. Bond, J. Borrill, F. R. Bouchet, C. Burigana, J. -F. Cardoso, A. Catalano, A. Challinor, A. Chamballu, H. C. Chiang, R. Christensen, D. L. Clements, S. Colombi, L. P. L. Colombo, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, L. Danese, R. D. Davies, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, F. -X. Desert, C. Dickinson, J. M. Diego, H. Dole, S. Donzelli, O. Dore, M. Douspis, X. Dupac, T. A. Ensslin, H. K. Eriksen, F. Finelli, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, S. Galeotta, K. Ganga, M. Giard, J. Gonzalez-Nuevo, K. M. Gorski, S. Gratton, A. Gregorio, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, D. Hanson, D. L. Harrison, S. Henrot-Versille, C. D. Herranz, S. R. Hildebrandt, E. Hivon, M. Hobson, W. A. Holmes, A. Hornstrup, W. Hovest, K. M. Huffenberger, A. H. Jaffe, T. R. Jaffe, W. C. Jones, E. Keihanen, R. Keskitalo, J. Knoche, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lahteenmaki, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, R. Leonardi, J. Leon-Tavares, J. Lesgourgues, M. Liguori, P. B. Lilje, M. Lilley, M. Linden-Vornle, M. Lopez-Caniego, P. M. Lubin, J. F. Macias-Perez, D. Maino, N. Mandolesi, M. Maris, P. G. Martin, E. Martinez-Gonzalez, S. Masi, S. Matarrese, P. Mazzotta, P. R. Meinhold, A. Melchiorri, L. Mendes, A. Mennella, S. Mitra, M. -A. Miville-Deschenes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, A. Moss, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, H. U. Norgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, C. A. Oxborrow, L. Pagano, F. Pajot, D. Paoletti, B. Partridge, F. Pasian, G. Patanchon, D. Pearson, T. J. Pearson, O. Perdereau, F. Perrotta, F. Piacentini, M. Piat, E. Pierpaoli, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, L. Popa, G. W. Pratt, S. Prunet, J. -L. Puget, J. P. Rachen, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, I. Ristorcelli, G. Rocha, G. Roudier, J. A. Rubino-Martin, B. Rusholme, M. Sandri, D. Scott, V. Stolyarov, R. Sudiwala, D. Sutton, A. -S. Suur-Uski, J. -F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, L. Valenziano, J. Valiviita, B. Van Tent, P. Vielva, F. Villa, L. A. Wade, B. D. Wandelt, I. K. Wehus, S. D. M. White, D. Yvon, A. Zacchei, A. Zonca

摘要:

普朗克设计和扫描策略提供了许多层次的冗余,可以用来测试内部一致性。其中最重要的是70GHz和100GHz信道的比较。基于不同的仪器技术,在焦平面上的不同位置,由不同的团队使用不同的软件进行独立分析,并且接近漫射前景发射的最小值,这些通道实际上是两个不同的实验。143GHz通道在普朗克轨道上具有最低的噪声水平,并且接近未分辨前景发射的最小值。在本文中,我们分析了2013年普朗克数据的一致性水平。我们集中在70/100/143 GHz的通道地图和功率谱之间的比较,特别是在第一和第二声峰的角度尺度,在地图上掩盖了弥漫的银河系发射和强大的未解决的来源。覆盖8度-15角分角标度的差分图与噪声一致,没有显示宇宙微波背景结构的证据。包括未分辨源残差的小但重要的修正,我们证明了70和100GHz功率谱之间的协议平均超过70 <l <390在0.8%的水平,和协议之间的143和100GHz功率谱的0.4%在相同的l范围。这些值在普朗克2013年结果中给出的校准总体不确定度范围内并与之一致。我们还提出了基于2013年的似然分析的结果,显示100/143/217 GHz功率谱之间的一致性为0.35%。我们分析校准程序和光束,以确定这些差异中的哪一部分可以通过已知的近似值或系统误差来解释,这些误差在未来可以更好地控制,进一步减少不确定性。一些可能的小的改进被描述.(节略)

英文摘要:

The Planck design and scanning strategy provide many levels of redundancy that can be exploited to provide tests of internal consistency. One of the most important is the comparison of the 70GHz and 100GHz channels. Based on different instrument technologies, with feeds located differently in the focal plane, analysed independently by different teams using different software, and near the minimum of diffuse foreground emission, these channels are in effect two different experiments. The 143GHz channel has the lowest noise level on Planck, and is near the minimum of unresolved foreground emission. In this paper, we analyse the level of consistency achieved in the 2013 Planck data. We concentrate on comparisons between the 70/100/143GHz channel maps and power spectra, particularly over the angular scales of the first and second acoustic peaks, on maps masked for diffuse Galactic emission and for strong unresolved sources. Difference maps covering angular scales from 8deg-15arcmin are consistent with noise, and show no evidence of cosmic microwave background structure. Including small but important corrections for unresolved-source residuals, we demonstrate agreement between 70 and 100GHz power spectra averaged over 70<l<390 at the 0.8% level, and agreement between 143 and 100GHz power spectra of 0.4% over the same l range. These values are within and consistent with the overall uncertainties in calibration given in the Planck 2013 results. We also present results based on the 2013 likelihood analysis showing consistency at the 0.35% between the 100/143/217GHz power spectra. We analyse calibration procedures and beams to determine what fraction of these differences can be accounted for by known approximations or systematic errors that could be controlled even better in the future, reducing uncertainties still further. Several possible small improvements are described...(abridged)

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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