成像暗能量实验的光谱需求：测光红移训练与校准
宇宙学与河外天体物理
2016-05-25 v1
摘要
成像暗能量实验需要大量具有光谱红移测量的天体才能充分发挥其潜力，这服务于两个目标：训练，即利用已知红移的天体来开发和优化测光红移算法；以及校准，即表征红移（或测光红移误差）分布的矩。更好的训练使得给定实验的宇宙学约束更强，而高精度的校准对于测光红移系统误差不主导误差是必需的。在这份白皮书中，我们研究了能够同时服务于当前和下一代暗能量实验这两个目的的光谱数据集所需的范围，以及利用未来十年可用的仪器获取这些数据所需的时间。需要大量分配千目标光谱仪的时间，理想情况下辅以空间红外光谱。或者，通过测量来自大型重子声学振荡实验（如DESI）的亮天体样本的互相关统计，可以获得精确的校准。我们还总结了为当前和未来暗能量实验准备测光红移方法所需的额外工作。
引用
@article{arxiv.1309.5384,
title = {Spectroscopic Needs for Imaging Dark Energy Experiments: Photometric Redshift Training and Calibration},
author = {J. Newman and A. Abate and F. Abdalla and S. Allam and S. Allen and R. Ansari and S. Bailey and W. Barkhouse and T. Beers and M. Blanton and M. Brodwin and J. Brownstein and R. Brunner and M. Carrasco-Kind and J. Cervantes-Cota and E. Chisari and M. Colless and J. Comparat and J. Coupon and E. Cheu and C. Cunha and A. de la Macorra and I. Dell'Antonio and B. Frye and E. Gawiser and N. Gehrels and K. Grady and A. Hagen and P. Hall and A. Hearin and H. Hildebrandt and C. Hirata and S. Ho and K. Honscheid and D. Huterer and Z. Ivezic and J. -P. Kneib and J. Kruk and O. Lahav and R. Mandelbaum and J. Marshall and D. Matthews and B. Ménard and R. Miquel and M. Moniez and W. Moos and J. Moustakas and C. Papovich and J. Peacock and C. Park and J. Rhodes and J-S. Ricol and I. Sadeh and A. Slozar and S. Schmidt and D. Stern and T. Tyson and A. von der Linden and R. Wechsler and W. Wood-Vasey and A. Zentner},
journal= {arXiv preprint arXiv:1309.5384},
year = {2016}
}
备注
White paper for the "Dark Energy and CMB" working group for the American Physical Society's Division of Particles and Fields long-term planning exercise ("Snowmass")