Simons Observatory: 增强型大口径望远镜的科学目标与预测
天体物理仪器与方法
2025-08-11 v3 宇宙学与河外天体物理
地球与行星天体物理
星系天体物理
高能天体物理现象
太阳与恒星天体物理
摘要
我们描述了 Simons Observatory (SO) 所将产生的大尺度亚毫米波遍历的最新科学目标。预计于 2028 年完成对 6 米 SO 大口径望远镜 (LAT) 的显著升级，包括以 30,000 台新探测器实现的映射速度翻倍，以及自动化的数据降序管线。此外，一个新的太阳能阵列将为观测站提供大部分电力。LAT 遍历将覆盖约 60% 的天空，并以固定的观测频率进行，具有 Planck 的 5 倍角分辨率和 10 倍图深度。科学目标包括：（1）确定早期宇宙中的物理条件并约束新型轻粒子的存在；（2）测量宇宙晚期时间段中质量、电子压力和电子动量的分布，并结合光学遍历，通过对 处结构生长进行层析测量来确定中微子质量和暗能量的效应；（3）测量银河系群和星团周围电子密度和压力的分布，并校准来自星系形成对周围环境能量输入的效应；（4）产出超过 30,000 个星系团和超过 100,000 个外银河系亚毫米源，包括定期抽样的 AGN 光变曲线，以研究这些源及其辐射物理；（5）测量我银河系中磁场对准尘埃颗粒的偏振辐射，以探讨尘埃的性质以及磁场在星形成中的作用；（6）约束小行星表层物质，搜索跨海王星天体，并检测或消除行星 9 搜索空间中的大部分相位空间；（7）为时间尺度从分钟到年不等的瞬变宇宙提供一个强大的新窗口，同时与 Rubin 重叠天区的观测同步进行。
引用
@article{arxiv.2503.00636,
title = {The Simons Observatory: Science Goals and Forecasts for the Enhanced Large Aperture Telescope},
author = {The Simons Observatory Collaboration and M. Abitbol and I. Abril-Cabezas and S. Adachi and P. Ade and A. E. Adler and P. Agrawal and J. Aguirre and Z. Ahmed and S. Aiola and T. Alford and A. Ali and D. Alonso and M. A. Alvarez and R. An and K. Arnold and P. Ashton and Z. Atkins and J. Austermann and S. Azzoni and C. Baccigalupi and A. Baleato Lizancos and D. Barron and P. Barry and J. Bartlett and N. Battaglia and R. Battye and E. Baxter and A. Bazarko and J. A. Beall and R. Bean and D. Beck and S. Beckman and J. Begin and A. Beheshti and B. Beringue and T. Bhandarkar and S. Bhimani and F. Bianchini and E. Biermann and S. Biquard and B. Bixler and S. Boada and D. Boettger and B. Bolliet and J. R. Bond and J. Borrill and J. Borrow and C. Braithwaite and T. L. R. Brien and M. L. Brown and S. M. Bruno and S. Bryan and R. Bustos and H. Cai and E. Calabrese and V. Calafut and F. M. Carl and A. Carones and J. Carron and A. Challinor and P. Chanial and N. Chen and K. Cheung and B. 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journal= {arXiv preprint arXiv:2503.00636},
year = {2025}
}
备注
45 pages, 7 figures; abstract slightly abridged; matches JCAP accepted version. Author contributions to this paper are available at https://simonsobservatory.org/wp-content/uploads/2025/03/Author-contribution-statement-20250228.pdf