暗能量巡天第一年结果：曲面天区弱透镜质量图
宇宙学与河外天体物理
2018-02-21 v2
摘要
我们从DES第一年（DES Y1）数据构建了迄今为止最大的曲面天区星系弱透镜质量图。该图比先前工作大约10倍，构建在约1500平方度的连续区域上，覆盖约10 Gpc³的共动体积。使用模拟检验了遮蔽、采样和噪声的影响。我们从两个DES Y1剪切星表Metacalibration和Im3shape生成弱透镜图，源星系红移范围为0.2<z<1.3，并分别在该范围内的四个区间中生成。在信噪比最高的图中，当使用σ_G=30（80）角分的高斯滤波器平滑时，E模和B模图中的平均信噪比之比约为1.5（约2）。图中收敛场κ的二阶和三阶矩与模拟一致。我们还发现κ与潜在系统污染源图之间没有显著相关性。最后，我们展示了质量图的两个应用：（1）与不同前景质量示踪物的互相关，以及（2）对图中最大峰和空洞的探索。
引用
@article{arxiv.1708.01535,
title = {Dark Energy Survey Year 1 Results: Curved-Sky Weak Lensing Mass Map},
author = {C. Chang and A. Pujol and B. Mawdsley and D. Bacon and J. Elvin-Poole and P. Melchior and A. Kovács and B. Jain and B. Leistedt and T. Giannantonio and A. Alarcon and E. Baxter and K. Bechtol and M. R. Becker and A. Benoit-Lévy and G. M. Bernstein and C. Bonnett and M. T. Busha and A. Carnero Rosell and F. J. Castander and R. Cawthon and L. N. da Costa and C. Davis and J. De Vicente and J. DeRose and A. Drlica-Wagner and P. Fosalba and M. Gatti and E. Gaztanaga and D. Gruen and J. Gschwend and W. G. Hartley and B. Hoyle and E. M. Huff and M. Jarvis and N. Jeffrey and T. Kacprzak and H. Lin and N. MacCrann and M. A. G. Maia and R. L. C. Ogando and J. Prat and M. M. Rau and R. P. Rollins and A. Roodman and E. Rozo and E. S. Rykoff and S. Samuroff and C. Sánchez and I. Sevilla-Noarbe and E. Sheldon and M. A. Troxel and T. N. Varga and P. Vielzeuf and V. Vikram and R. H. Wechsler and J. Zuntz and T. M. C. Abbott and F. B. Abdalla and S. Allam and J. Annis and E. Bertin and D. Brooks and E. Buckley-Geer and D. L. Burke and M. Carrasco Kind and J. Carretero and M. Crocce and C. E. Cunha and C. B. D'Andrea and S. Desai and H. T. Diehl and J. P. Dietrich and P. Doel and J. Estrada and A. Fausti Neto and E. Fernandez and B. Flaugher and J. Frieman and J. García-Bellido and R. A. Gruendl and G. Gutierrez and K. Honscheid and D. J. James and T. Jeltema and M. W. G. Johnson and M. D. Johnson and S. Kent and D. Kirk and E. Krause and K. Kuehn and S. Kuhlmann and O. Lahav and T. S. Li and M. Lima and M. March and P. Martini and F. Menanteau and R. Miquel and J. J. Mohr and E. Neilsen and R. C. Nichol and D. Petravick and A. A. Plazas and A. K. Romer and M. Sako and E. Sanchez and V. Scarpine and M. Schubnell and M. Smith and R. C. Smith and M. Soares-Santos and F. Sobreira and E. Suchyta and G. Tarle and D. Thomas and D. L. Tucker and A. R. Walker and W. Wester and Y. Zhang},
journal= {arXiv preprint arXiv:1708.01535},
year = {2018}
}
备注
25 pages, 19 figures, 1 table; revision with changes implemented according to journal referee