弱引力透镜结合动力学Sunyaev-Zel'dovich效应：重子反馈研究
宇宙学与河外天体物理
2024-04-10 v1 星系天体物理
摘要
从弱引力透镜巡天中提取精确的宇宙学信息需要对非线性物质功率谱进行建模，该功率谱在小尺度上由于重子反馈过程而受到抑制。然而，流体动力学星系形成模拟对这种效应的幅度和范围做出了差异巨大的预测。我们使用暗能量巡天第三年（Year 3）的弱引力透镜（WL）测量和阿塔卡马宇宙学望远镜DR5的动力学Sunyaev-Zel'dovich（kSZ）测量，利用灵活的分析模型“重子化”来联合约束宇宙学和天体物理重子反馈参数。首先，仅使用WL，我们将使用重子化得到的约束与模拟校准的晕模型、基于模拟的模拟器模型以及丢弃小角尺度WL测量的方法进行比较。我们发现模型的灵活性可以改变的值并降低不确定性。kSZ对天体物理参数提供了额外约束，并将平移至，高于仅使用WL分析获得的值。我们使用WL + kSZ测量了非线性物质功率谱的抑制，并约束了一个平均反馈场景，该场景比大多数流体动力学模拟的预测更为极端。我们约束了重子分数和气体质量分数，发现它们通常低于从X射线观测和模拟预测中推断的值。我们得出结论，WL + kSZ测量为构建跨观测的星系周围气体影响的连贯图景提供了一个新的互补基准。
引用
@article{arxiv.2404.06098,
title = {Weak lensing combined with the kinetic Sunyaev Zel'dovich effect: A study of baryonic feedback},
author = {L. Bigwood and A. Amon and A. Schneider and J. Salcido and I. G. McCarthy and C. Preston and D. Sanchez and D. Sijacki and E. Schaan and S. Ferraro and N. Battaglia and A. Chen and S. Dodelson and A. Roodman and A. Pieres and A. Ferte and A. Alarcon and A. Drlica-Wagner and A. Choi and A. Navarro-Alsina and A. Campos and A. J. Ross and A. Carnero Rosell and B. Yin and B. Yanny and C. Sanchez and C. Chang and C. Davis and C. Doux and D. Gruen and E. S. Rykoff and E. M. Huff and E. Sheldon and F. Tarsitano and F. Andrade-Oliveira and G. M. Bernstein and G. Giannini and H. T. Diehl and H. Huang and I. Harrison and I. Sevilla-Noarbe and I. Tutusaus and J. Elvin-Poole and J. McCullough and J. Zuntz and J. Blazek and J. DeRose and J. Cordero and J. Prat and J. Myles and K. Eckert and K. Bechtol and K. Herner and L. F. Secco and M. Gatti and M. Raveri and M. Carrasco Kind and M. R. Becker and M. A. Troxel and M. Jarvis and N. MacCrann and O. Friedrich and O. Alves and P. -F. Leget and R. Chen and R. P. Rollins and R. H. Wechsler and R. A. Gruendl and R. Cawthon and S. Allam and S. L. Bridle and S. Pandey and S. Everett and T. Shin and W. G. Hartley and X. Fang and Y. Zhang and M. Aguena and J. Annis and D. Bacon and E. Bertin and S. Bocquet and D. Brooks and J. Carretero and F. J. Castander and L. N. da Costa and M. E. S. Pereira and J. De Vicente and S. Desai and P. Doel and I. Ferrero and B. Flaugher and J. Frieman and J. Garcia-Bellido and E. Gaztanaga and G. Gutierrez and S. R. Hinton and D. L. Hollowood and K. Honscheid and D. Huterer and D. J. James and K. Kuehn and O. Lahav and S. Lee and J. L. Marshall and J. Mena-Fernandez and R. Miquel and J. Muir and M. Paterno and A. A. Plazas Malagon and A. Porredon and A. K. Romer and S. Samuroff and E. Sanchez and D. Sanchez Cid and M. Smith and M. Soares-Santos and E. Suchyta and M. E. C. Swanson and G. Tarle and C. To and N. Weaverdyck and J. Weller and P. Wiseman and M. Yamamoto},
journal= {arXiv preprint arXiv:2404.06098},
year = {2024}
}