LiteBIRD太空任务扫描策略的多维优化
天体物理仪器与方法
2025-03-05 v2 宇宙学与河外天体物理
摘要
在无大气的条件下进行大角尺度调查对于测量宇宙微波背景（CMB）的原始B极化功率谱至关重要。由于该测量约为CMB温度各向异性的3-4个数量级，现场仪器校准和主动抑制系统效应至关重要。我们研究了改变扫描策略参数对现场校准有效性、系统效应抑制以及通过空白检验区分系统效应能力的影响。LiteBIRD等下一代任务将通过半波片（HWP）实现单探测器极化观测，从而消除对多个探测器组合以测量极化的需求，避免随之而来的系统效应。虽然HWP预计会抑制许多系统效应，但仍有一些系统效应无法消除。我们采用解析方法全面考虑这些系统效应的缓解，并识别了在扫描参数的多维空间中最有效的扫描策略特征，用于实施各种校准策略。我们还开发了Falcons，一个快速的太空ecraft扫描模拟器，用于探索此扫描参数空间。
引用
@article{arxiv.2408.03040,
title = {Multi-dimensional optimisation of the scanning strategy for the LiteBIRD space mission},
author = {Y. Takase and L. Vacher and H. Ishino and G. Patanchon and L. Montier and S. L. Stever and K. Ishizaka and Y. Nagano and W. Wang and J. Aumont and K. Aizawa and A. Anand and C. Baccigalupi and M. Ballardini and A. J. Banday and R. B. Barreiro and N. Bartolo and S. Basak and M. Bersanelli and M. Bortolami and T. Brinckmann and E. Calabrese and P. Campeti and E. Carinos and A. Carones and F. J. Casas and K. Cheung and L. Clermont and F. Columbro and A. Coppolecchia and F. Cuttaia and P. de Bernardis and T. de Haan and E. de la Hoz and S. Della Torre and P. Diego-Palazuelos and G. D'Alessandro and H. K. Eriksen and J. Errard and F. Finelli and U. Fuskeland and G. Galloni and M. Galloway and M. Gervasi and T. Ghigna and S. Giardiello and C. Gimeno-Amo and E. Gjerløw and R. González González and A. Gruppuso and M. Hazumi and S. Henrot-Versillé and L. T. Hergt and K. Ikuma and K. Kohri and L. Lamagna and M. Lattanzi and C. Leloup and M. Lembo and F. Levrier and A. I. Lonappan and M. López-Caniego and G. Luzzi and B. Maffei and E. Martínez-González and S. Masi and S. Matarrese and F. T. Matsuda and T. Matsumura and S. Micheli and M. Migliaccio and M. Monelli and G. Morgante and B. Mot and R. Nagata and T. Namikawa and A. Novelli and K. Odagiri and S. Oguri and R. Omae and L. Pagano and D. Paoletti and F. Piacentini and M. Pinchera and G. Polenta and L. Porcelli and N. Raffuzzi and M. Remazeilles and A. Ritacco and M. Ruiz-Granda and Y. Sakurai and D. Scott and Y. Sekimoto and M. Shiraishi and G. Signorelli and R. M. Sullivan and H. Takakura and L. Terenzi and M. Tomasi and M. Tristram and B. van Tent and P. Vielva and I. K. Wehus and B. Westbrook and G. Weymann-Despres and E. J. Wollack and M. Zannoni and Y. Zhou},
journal= {arXiv preprint arXiv:2408.03040},
year = {2025}
}