暗能量巡天：超越暗能量——概述
宇宙学与河外天体物理
2016-11-18 v3 星系天体物理
摘要
这篇概述文章描述了暗能量巡天（DES）在宇宙学研究中之外的遗留前景与发现潜力，并以 DES 早期数据的例子加以说明。DES 正在使用位于智利 4m Blanco 望远镜上的广视场相机（DECam）在五个滤光片（grizY）下对 5000 平方度的天空成像。到巡天完成时，预计将生成包含 3 亿个具有测光红移的星系和 1 亿颗恒星的星表。此外，在 27 平方度上的时域巡天搜索预计将产生数千个 Ia 型超新星和其他瞬变源的样本。DES 的主要目标是刻画暗能量和暗物质，并检验替代引力模型；这些目标将通过研究大尺度结构、星系团计数、弱引力透镜和 Ia 型超新星来实现。然而，DES 也提供了丰富的数据集，使我们能够研究天体物理学的许多其他方面。在本文中，我们聚焦于 DES 的附加科学，强调该巡天相对于其他当前巡天有所作为的领域。本文利用早期数据（来自“Science Verification”以及第一、第二和第三个观测季）说明了 DES 能告诉我们关于太阳系、银河系、星系演化、类星体及其他主题的信息。此外，我们表明，如果假设宇宙学模型为 Lambda+冷暗物质（LCDM），则重要的天体物理结论可从 DES 主要探针推导得出。DES 早期数据的亮点包括发现 34 个海外天体、17 个银河系矮卫星星系、一个已发表的 z > 6 类星体（以及更多已确认）和两个已发表的超亮超新星（以及更多已确认）。
引用
@article{arxiv.1601.00329,
title = {The Dark Energy Survey: more than dark energy - an overview},
author = {Dark Energy Survey Collaboration and T. Abbott and F. B. Abdalla and J. Aleksic and S. Allam and A. Amara and D. Bacon and E. Balbinot and M. Banerji and K. Bechtol and A. Benoit-Levy and G. M. Bernstein and E. Bertin and J. Blazek and C. Bonnett and S. Bridle and D. Brooks and R. J. Brunner and E. Buckley-Geer and D. L. Burke and G. B. Caminha and D. Capozzi and J. Carlsen and A. Carnero-Rosell and M. Carollo and M. Carrasco-Kind and J. Carretero and F. J. Castander and L. Clerkin and T. Collett and C. Conselice and M. Crocce and C. E. Cunha and C. B. D'Andrea and L. N. da Costa and T. M. Davis and S. Desai and H. T. Diehl and J. P. Dietrich and S. Dodelson and P. Doel and A. Drlica-Wagner and J. Estrada and J. Etherington and A. E. Evrard and J. Fabbri and D. A. Finley and B. Flaugher and R. J. Foley and P. Rosalba and J. Frieman and J. Garcia-Bellido and E. Gaztanaga and D. W. Gerdes and T. Giannantonio and D. A. Goldstein and D. Gruen and R. A. Gruendl and P. Guarnieri and G. Gutierrez and W. Hartley and K. Honscheid and B. Jain and D. J. James and T. Jeltema and S. Jouvel and R. Kessler and A. King and D. Kirk and R. Kron and K. Kuehn and N. Kuropatkin and O. Lahav and T. S. Li and M. Lima and H. Lin and M. A. G. Maia and M. Makler and M. Manera and C. Maraston and J. L. Marshall and P. Martini and R. G. McMahon and P. Melchior and A. Merson and C. J. Miller and R. Miquel and J. J. Mohr and X. Morice-Atkinson and K. Naidoo and E. Neilsen and R. C. Nichol and B. Nord and R. Ogando and F. Ostrovski and A. Palmese and A. Papadopoulos and H. Peiris and J. Peoples and W. J. Percival and A. A. Plazas and S. L. Reed and A. Refregier and A. K. Romer and A. Roodman and A. Ross and E. Rozo and E. S. Rykoff and I. Sadeh and M. Sako and C. Sanchez and E. Sanchez and B. Santiago and V. Scarpine and M. Schubnell and I. Sevilla-Noarbe and E. Sheldon and M. Smith and R. C. Smith and M. Soares-Santos and F. Sobreira and M. Soumagnac and E. Suchyta and M. Sullivan and M. Swanson and G. Tarle and J. Thaler and D. Thomas and R. C. Thomas and D. Tucker and J. D. Vieira and V. Vikram and A. R. Walker and R. H. Wechsler and J. Weller and W. Wester and L. Whiteway and H. Wilcox and B. Yanny and Y. Zhang and J. Zuntz},
journal= {arXiv preprint arXiv:1601.00329},
year = {2016}
}
备注
32 pages, 15 figures; a revised Figure 1 and minor changes, to match the published MNRAS version