暗能量巡天中多探针的宇宙学限制
宇宙学与河外天体物理
2019-05-07 v3
摘要
多种观测探针的结合长期以来被提倡为限制宇宙学参数（特别是暗能量）的有力技术。暗能量巡天已测量了207颗经光谱确认的Ia型超新星光变曲线、重子声学振荡特征、弱引力透镜以及星系成团性。在此我们给出这些探针的组合结果，推导出关于暗能量状态方程及其在宇宙中能量密度的限制。独立于其他实验（如测量宇宙微波背景者），来自这一单一测光巡天的探针排除了没有暗能量的宇宙，发现。几何被证明与空间平坦宇宙一致，并且我们获得了独立于早期宇宙测量的重子密度限制。这些结果展示了大型多探针测光巡天的潜在威力，并为未来十年我们在暗能量和宇宙学性质限制上实现数量级进步铺平了道路。
引用
@article{arxiv.1811.02375,
title = {Cosmological Constraints from Multiple Probes in the Dark Energy Survey},
author = {DES Collaboration and T. M. C. Abbott and A. Alarcon and S. Allam and P. Andersen and F. Andrade-Oliveira and J. Annis and J. Asorey and A. Avelino and S. Avila and D. Bacon and N. Banik and B. A. Bassett and E. Baxter and K. Bechtol and M. R. Becker and G. M. Bernstein and E. Bertin and J. Blazek and S. L. Bridle and D. Brooks and D. Brout and D. L. Burke and J. Calcino and H. Camacho and A. Campos and A. Carnero Rosell and D. Carollo and M. Carrasco Kind and J. Carretero and F. J. Castander and R. Cawthon and P. Challis and K. C. Chan and C. Chang and M. Childress and A. Clocchiatti and M. Crocce and C. E. Cunha and C. B. D'Andrea and L. N. da Costa and C. Davis and T. M. Davis and J. De Vicente and D. L. DePoy and J. DeRose and S. Desai and H. T. Diehl and J. P. Dietrich and S. Dodelson and P. Doel and A. Drlica-Wagner and T. F. Eifler and J. Elvin-Poole and J. Estrada and A. E. Evrard and E. Fernandez and A. V. Filippenko and B. Flaugher and R. J. Foley and P. Fosalba and J. Frieman and L. Galbany and J. García-Bellido and M. Gatti and E. Gaztanaga and D. W. Gerdes and T. Giannantonio and K. Glazebrook and D. A. Goldstein and D. Gruen and R. A. Gruendl and J. Gschwend and G. Gutierrez and W. G. Hartley and S. R. Hinton and D. L. Hollowood and K. Honscheid and J. K. Hoormann and B. Hoyle and D. Huterer and B. Jain and D. J. James and M. Jarvis and T. Jeltema and E. Kasai and S. Kent and R. Kessler and A. G. Kim and R. P. Kirshner and N. Kokron and E. Krause and R. Kron and K. Kuehn and N. Kuropatkin and O. Lahav and J. Lasker and P. Lemos and G. F. Lewis and T. S. Li and C. Lidman and M. Lima and H. Lin and E. Macaulay and N. MacCrann and M. A. G. Maia and K. S. Mandel and M. March and J. Marriner and J. L. Marshall and P. Martini and R. G. McMahon and P. Melchior and F. Menanteau and R. Miquel and J. J. Mohr and E. Morganson and J. Muir and A. Möller and E. Neilsen and R. C. Nichol and B. Nord and R. L. C. Ogando and A. Palmese and Y. -C. Pan and H. V. Peiris and W. J. Percival and A. A. Plazas and A. Porredon and J. Prat and A. K. Romer and A. Roodman and R. Rosenfeld and A. J. Ross and E. S. Rykoff and S. Samuroff and C. Sánchez and E. Sanchez and V. Scarpine and R. Schindler and M. Schubnell and D. Scolnic and L. F. Secco and S. Serrano and I. Sevilla-Noarbe and R. Sharp and E. Sheldon and M. Smith and M. Soares-Santos and F. Sobreira and N. E. Sommer and E. Swann and M. E. C. Swanson and G. Tarle and D. Thomas and R. C. Thomas and M. A. Troxel and B. E. Tucker and S. A. Uddin and P. Vielzeuf and A. R. Walker and M. Wang and N. Weaverdyck and R. H. Wechsler and J. Weller and B. Yanny and B. Zhang and Y. Zhang and J. Zuntz},
journal= {arXiv preprint arXiv:1811.02375},
year = {2019}
}
备注
8 pages, 2 figures; v3 matches version accepted by PRL