LiteBIRD 全息仿真管线首次发布
天体物理仪器与方法
2025-11-06 v5 宇宙学与河外天体物理
摘要
LiteBIRD 卫星计划旨在以前所未有的精度检测宇宙微波背景 B 模，以实现对标量比 B 模的总误差 r 的 δr ~ 0.001。LiteBIRD 将在太阳-地球 L2 拉格朗日点运行，跨越 15 个频段 (34 到 448 GHz) 进行 3 年的全天球观测。当前的 LiteBIRD 基线配置采用 4508 个探测器，采样率为 19.1 Hz，以实现 2 μK-arcmin 的有效偏振灵敏度和在 140 GHz 处的 31 弧分辨率。我们描述了 LiteBIRD 仿真管线的首次发布，该管线由使用 LiteBIRD Simulation Framework 开发，见 https://github.com/litebird/litebird_sim。该管线生成 500 个全天球模拟图，Healpix 分辨率为 nside=512。仿真还包括约三分之一 LiteBIRD 总探测器数量的约一年时间顺序数据。
引用
@article{arxiv.2507.07122,
title = {First release of LiteBIRD simulations from an end-to-end pipeline},
author = {M. Bortolami and N. Raffuzzi and L. Pagano and G. Puglisi and A. Anand and A. J. Banday and P. Campeti and G. Galloni and A. I. Lonappan and M. Monelli and M. Tomasi and G. Weymann-Despres and D. Adak and E. Allys and J. Aumont and R. Aurvik and C. Baccigalupi and M. Ballardini and R. B. Barreiro and N. Bartolo and S. Basak and M. Bersanelli and A. Besnard and T. Brinckmann and E. Calabrese and E. Carinos and A. Carones and F. J. Casas and K. Cheung and M. Citran and L. Clermont and F. Columbro and G. Coppi and A. Coppolecchia and F. Cuttaia and P. Dal Bo and P. de Bernardis and E. de la Hoz and M. De Lucia and S. Della Torre and P. Diego-Palazuelos and H. K. Eriksen and T. Essinger-Hileman and C. Franceschet and U. Fuskeland and M. Galloway and M. Gerbino and M. Gervasi and T. Ghigna and S. Giardiello and C. Gimeno-Amo and E. Gjerløw and A. Gruppuso and M. Hazumi and S. Henrot-Versillé and L. T. Hergt and E. Hivon and B. Jost and K. Kohri and L. Lamagna and T. Lari and M. Lattanzi and C. Leloup and F. Levrier and M. López-Caniego and G. Luzzi and J. Macias-Perez and B. Maffei and E. Martínez-González and S. Masi and S. Matarrese and T. Matsumura and S. Micheli and L. Montier and G. Morgante and L. Mousset and R. Nagata and T. Namikawa and A. Novelli and F. Noviello and I. Obata and A. Occhiuzzi and A. Paiella and D. Paoletti and G. Pascual-Cisneros and F. Piacentini and M. Pinchera and G. Polenta and L. Porcelli and M. Remazeilles and A. Ritacco and A. Rizzieri and J. A. Rubiño-Martín and M. Ruiz-Granda and J. Sanghavi and V. Sauvage and M. Shiraishi and G. Signorelli and S. L. Stever and R. M. Sullivan and Y. Takase and K. Tassis and L. Terenzi and M. Tristram and L. Vacher and B. van Tent and P. Vielva and I. K. Wehus and M. Zannoni and Y. Zhou},
journal= {arXiv preprint arXiv:2507.07122},
year = {2025}
}