欧几里得准备：XIV. 颜色-红移关系的完全定标（C3R2）巡天：第三批数据发布
宇宙学与河外天体物理
2022-02-18 v2 天体物理仪器与方法
摘要
颜色-红移关系的完全定标（C3R2）巡天正在获取光谱红移，以绘制星系颜色与红移之间的关系图，深度达 i ~ 24.5（AB）。其主要目标是为第四阶段暗能量项目（特别是 Euclid 和 Roman 空间望远镜）提供足够精确的测光红移，这些项目旨在通过弱引力透镜约束宇宙学参数。我们呈现了 C3R2 巡天在 2017B–2019B 学期使用 Keck 望远镜上的 DEIMOS、LRIS 和 MOSFIRE 多目标光谱仪获得的 676 个新的高置信度光谱红移。结合该项目此前发表的 4454 个红移，C3R2 巡天现已获取并发表了 5130 个高质量星系光谱与红移。若仅考虑 Euclid 宇宙学目标所关注的 0.2 < z(phot) < 2.6 范围，则凭借当前数据发布，C3R2 已将 Euclid 颜色空间的光谱红移覆盖率从 51%（由 Masters 等人 2015 年报道）提升至当前的 91%。一旦完成并与其他光谱巡天收集的大量数据结合，C3R2 应能提供所需的光谱定标集，使测光红移满足 Euclid 的宇宙学要求，并为解决 Roman 的问题取得重大进展。
引用
@article{arxiv.2106.11367,
title = {Euclid Preparation: XIV. The Complete Calibration of the Color-Redshift Relation (C3R2) Survey: Data Release 3},
author = {Euclid Collaboration and S. A. Stanford and D. Masters and B. Darvish and D. Stern and J. G. Cohen and P. Capak and N. Hernitschek and I. Davidzon and J. Rhodes and D. B. Sanders and B. Mobasher and F. J. Castander and S. Paltani and N. Aghanim and A. Amara and N. Auricchio and A. Balestra and R. Bender and C. Bodendorf and D. Bonino and E. Branchini and J. Brinchmann and V. Capobianco and C. Carbone and J. Carretero and R. Casas and M. Castellano and S. Cavuoti and A. Cimatti and R. Cledassou and C. J. Conselice and L. Corcione and A. Costille and M. Cropper and H. Degaudenzi and M. Douspis and F. Dubath and S. Dusini and P. Fosalba and M. Frailis and E. Franceschi and P. Franzetti and M. Fumana and B. Garilli and C. Giocoli and F. Grupp and S. V. H. Haugan and H. Hoekstra and W. Holmes and F. Hormuth and P. Hudelot and K. Jahnke and A. Kiessling and M. Kilbinger and T. Kitching and B. Kubik and M. Kummel and M. Kunz and H. Kurki-Suonio and R. Laureijs and S. Ligori and P. B. Lilje and I. Lloro and E. Maiorano and O. Marggraf and K. Markovic and R. Massey and M. Meneghetti and G. Meylan and L. Moscardini and S. M. Niemi and C. Padilla and F. Pasian and K. Pedersen and V. Pettorino and S. Pires and M. Poncet and L. Popa and L. Pozzetti and F. Raison and M. Roncarelli and E. Rossetti and R. Saglia and R. Scaramella and P. Schneider and A. Secroun and G. Seidel and S. Serrano and C. Sirignano and G. Sirri and A. N. Taylor and H. I. Teplitz and I. Tereno and R. Toledo-Moreo and E. A. Valentijn and L. Valenziano and G. A. Verdoes Kleijn and Y. Wang and G. Zamorani and J. Zoubian and M. Brescia and G. Congedo and L. Conversi and Y. Copin and S. Kermiche and R. Kohley and E. Medinaceli and S. Mei and M. Moresco and B. Morin and E. Munari and G. Polenta and F. Sureau and P. Tallada Crespí and T. Vassallo and A. Zacchei and S. Andreon and H. Aussel and C. Baccigalupi and A. Balaguera-Antolínez and M. Baldi and S. Bardelli and A. Biviano and E. Borsato and E. Bozzo and C. Burigana and R. Cabanac and S. Camera and A. Cappi and C. S. Carvalho and S. Casas and G. Castignani and C. Colodro-Conde and J. Coupon and H. M. Courtois and J. -G. Cuby and A. Da Silva and S. de la Torre and D. Di Ferdinando and C. A. J. Duncan and X. Dupac and M. Fabricius and M. Farina and S. Farrens and P. G. Ferreira and F. Finelli and P. Flose-Reimberg and S. Fotopoulou and S. Galeotta and K. Ganga and W. Gillard and G. Gozaliasl and J. Graciá-Carpio and E. Keihanen and C. C. Kirkpatrick and V. Lindholm and G. Mainetti and D. Maino and N. Martinet and F. Marulli and M. Maturi and S. Maurogordato and R. B. Metcalf and R. Nakajima and C. Neissner and J. W. Nightingale and A. A. Nucita and L. Patrizii and D. Potter and A. Renzi and G. Riccio and E. Romelli and A. G. Sanchez and D. Sapone and M. Schirmer and M. Schultheis and V. Scottez and L. Stanco and M. Tenti and R. Teyssier and F. Torradeflot and J. Valiviita and M. Viel and L. Whittaker and E. Zucca},
journal= {arXiv preprint arXiv:2106.11367},
year = {2022}
}
备注
14 pages, 7 figures, 4 tables. Accepted for publication in The Astrophysical Journal Supplement. Survey website with links to the C3R2 redshift catalog and the spectroscopic data hosted by the Keck Observatory Archive can be found at https://sites.google.com/view/c3r2-survey/home