Planck 2015结果. IV. 低频仪器波束与窗口函数
宇宙学与河外天体物理
2016-09-21 v2 天体物理仪器与方法
摘要
本文给出了Planck低频仪器（LFI）的在轨波束、波束窗口函数及相关不确定度的表征。论文结构类似于2013年Planck发布中的描述；主要差异涉及波束归一化以及用于偏振分析的窗口函数的提供。LFI主波束的在轨评估依赖于木星观测期间进行的测量。通过堆叠七次木星凌星的数据，主波束轮廓在30和44 GHz下测量至-25 dB，在70 GHz下测量至-30 dB。已确认在每个LFI频带内，模拟波束与测量波束之间的一致性优于1%（在距峰值20 dB等高线内，30和70 GHz的均方根值分别为0.1%；44 GHz为0.2%）。模拟偏振波束用于计算有效波束窗口函数。窗口函数的误差预算根据主波束和旁瓣贡献估算，并考虑了辐射计带宽形状。有效波束窗口函数的总不确定度在30和44 GHz分别为0.7%和1%（在处）；在70 GHz为0.5%（在处）。
引用
@article{arxiv.1502.01584,
title = {Planck 2015 results. IV. Low Frequency Instrument beams and window functions},
author = {Planck Collaboration and P. A. R. Ade and N. Aghanim and M. Ashdown and J. Aumont and C. Baccigalupi and A. J. Banday and R. B. Barreiro and N. Bartolo 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. J. Bock and A. Bonaldi and L. Bonavera and J. R. Bond and J. Borrill and F. R. Bouchet and M. Bucher and C. Burigana and R. C. Butler and E. Calabrese and J. -F. Cardoso and A. Catalano and A. Chamballu and P. R. Christensen and S. Colombi and L. P. L. Colombo 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 J. Delabrouille and C. Dickinson and J. M. Diego and H. Dole and S. Donzelli and O. Doré and M. Douspis and A. Ducout and X. Dupac and G. Efstathiou and F. Elsner and T. A. Enßlin and H. K. Eriksen and J. Fergusson and F. Finelli and O. Forni and M. Frailis and E. Franceschi and A. Frejsel and S. Galeotta and S. Galli and K. Ganga and M. Giard and Y. Giraud-Héraud and E. Gjerløw and J. González-Nuevo and K. M. Górski and S. Gratton and A. Gregorio and A. Gruppuso and F. K. Hansen and D. Hanson and D. L. Harrison and S. Henrot-Versillé and D. Herranz and S. R. Hildebrandt and E. Hivon and M. Hobson and W. A. Holmes and A. Hornstrup and W. Hovest and K. M. Huffenberger and G. Hurier and A. H. Jaffe and T. R. Jaffe and M. Juvela and E. Keihänen and R. Keskitalo and K. Kiiveri and T. S. Kisner and J. Knoche and M. Kunz and H. Kurki-Suonio and A. Lähteenmäki and J. -M. Lamarre and A. Lasenby and M. Lattanzi and C. R. Lawrence and J. P. Leahy and R. Leonardi and J. Lesgourgues and F. Levrier and M. Liguori and P. B. Lilje and M. Linden-Vørnle and V. Lindholm and M. López-Caniego and P. M. Lubin and J. F. Macías-Pérez and G. Maggio and D. Maino and N. Mandolesi and A. Mangilli and M. Maris and P. G. Martin and E. Martínez-González and S. Masi and S. Matarrese and P. Mazzotta and P. McGehee and P. R. Meinhold and A. Melchiorri and L. Mendes and A. Mennella and M. Migliaccio and S. Mitra and L. Montier and G. Morgante and D. Mortlock and A. Moss and D. Munshi and J. A. Murphy and P. Naselsky and F. Nati and P. Natoli and C. B. Netterfield and H. U. Nørgaard-Nielsen and D. Novikov and I. Novikov and F. Paci and L. Pagano and D. Paoletti and B. Partridge and F. Pasian and G. Patanchon and T. J. Pearson and O. Perdereau and L. Perotto and F. Perrotta and V. Pettorino and F. Piacentini and E. Pierpaoli and D. Pietrobon and E. Pointecouteau and G. Polenta and G. W. Pratt and G. Prézeau and S. Prunet and J. -L. Puget and J. P. Rachen and R. Rebolo and M. Reinecke and M. Remazeilles and A. Renzi and G. Rocha and C. Rosset and M. Rossetti and G. Roudier and J. A. Rubiño-Martín and B. Rusholme and M. Sandri and D. Santos and M. Savelainen and D. Scott and M. D. Seiffert and E. P. S. Shellard and L. D. Spencer and V. Stolyarov and D. Sutton and A. -S. Suur-Uski and J. -F. Sygnet and J. A. Tauber 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 T. Vassallo and P. Vielva and F. Villa and L. A. Wade and B. D. Wandelt and R. Watson and I. K. Wehus and D. Yvon and A. Zacchei and A. Zonca},
journal= {arXiv preprint arXiv:1502.01584},
year = {2016}
}
备注
22 pages, 24 figures