基于 SPT 和 DES SV 数据的透镜-星系关联联合测量
宇宙学与河外天体物理
2016-08-22 v2
摘要
我们测量了星系透镜与宇宙微波背景透镜对同一组预期示踪物质密度场的星系的关联性。测量使用预调查暗能量巡天（DES）科学验证（Science Verification）光学成像数据以及来自2500平方度南极望远镜苏尼亚耶夫-泽尔多维奇（SPT-SZ）巡天的毫米波数据。这两个透镜-星系关联被联合拟合，以提取对宇宙学参数的约束、对透镜星系红移分布的约束，以及对DES星系透镜测量绝对剪切定标的约束。我们表明，这些拟合的一个吸引人的特征是它们对用作物质示踪的星系的团簇偏置相当不敏感。本工作给出的测量确认了DES和SPT数据彼此一致，且与当前偏好的CDM宇宙学模型一致。它还证明了此处考虑的联合透镜-星系关联测量包含了可使用当前和未来巡天提取的丰富信息。
引用
@article{arxiv.1602.07384,
title = {Joint Measurement of Lensing-Galaxy Correlations Using SPT and DES SV Data},
author = {E. J. Baxter and J. Clampitt and T. Giannantonio and S. Dodelson and B. Jain and D. Huterer and L. E. Bleem and T. M. Crawford and G. Efstathiou and P. Fosalba and D. Kirk and J. Kwan and C. Sánchez and K. T. Story and M. A. Troxel and T. M. C. Abbott and F. B. Abdalla and R. Armstrong and A. Benoit-Lévy and B. A. Benson and G. M. Bernstein and R. A. Bernstein and E. Bertin and D. Brooks and J. E. Carlstrom and A. Carnero Rosell and M. Carrasco Kind and J. Carretero and R. Chown and M. Crocce and C. E. Cunha and C. B. D'Andrea and L. N. da Costa and S. Desai and H. T. Diehl and J. P. Dietrich and P. Doel and A. E. Evrard and A. Fausti Neto and B. Flaugher and J. Frieman and D. Gruen and R. A. Gruendl and G. Gutierrez and T. de Haan and G. P. Holder and K. Honscheid and Z. Hou and D. J. James and K. Kuehn and N. Kuropatkin and M. Lima and M. March and J. L. Marshall and P. Martini and P. Melchior and C. J. Miller and R. Miquel and J. J. Mohr and B. Nord and Y. Omori and A. A. Plazas and C. L. Reichardt and A. K. Romer and E. S. Rykoff and E. Sanchez and I. Sevilla-Noarbe and E. Sheldon and R. C. Smith and M. Soares-Santos and F. Sobreira and E. Suchyta and A. A. Stark and M. E. C. Swanson and G. Tarle and D. Thomas and A. R. Walker and R. H. Wechsler},
journal= {arXiv preprint arXiv:1602.07384},
year = {2016}
}
备注
17 pages, 9 figures. Accepted for publication in MNRAS. This version has been revised in response to referee comments