Hobby-Eberly 望远镜暗能量实验 (HETDEX) 巡天设计、数据处理与探测
天体物理仪器与方法
2022-01-05 v1 宇宙学与河外天体物理
星系天体物理
摘要
我们描述了 Hobby-Eberly 望远镜暗能量实验（HETDEX）的巡天设计、定标、调试与发射线探测算法。HETDEX 的目标是在 540 deg^2 面积内（共动体积 10.9 Gpc^3）测量 1.88<z<3.52 之间超过一百万个 Ly 发射星系的红移。该巡天不涉及目标预选，而是通过分布于望远镜焦平面的一组宽场积分视场单元进行光谱巡天来完成 HETDEX 测量。该巡天测量哈勃膨胀参数与角直径距离，最终预期精度优于 1%。我们详述了该项目的观测策略、数据处理流水线、源探测与星表生成，并给出了在 COSMOS、Extended Groth Strip 和 GOODS-N 场中进行科学验证的初步结果。我们证明我们的数据在通量、天体测量精度、流量极限和天体探测方面达到所需指标，最终产物为发射线源星表、其天体分类与流量定标光谱。
引用
@article{arxiv.2110.04298,
title = {The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections},
author = {Karl Gebhardt and Erin Mentuch Cooper and Robin Ciardullo and Viviana Acquaviva and Ralf Bender and William P. Bowman and Barbara G. Castanheira and Gavin Dalton and Dustin Davis and Roelof S. de Jong and D. L. DePoy and Yaswant Devarakonda and Sun Dongsheng and Niv Drory and Maximilian Fabricius and Daniel J. Farrow and John Feldmeier and Steven L. Finkelstein and Cynthia S. Froning and Eric Gawiser and Caryl Gronwall and Laura Herold and Gary J. Hill and Ulrich Hopp and Lindsay R. House and Steven Janowiecki and Matthew Jarvis and Donghui Jeong and Shardha Jogee and Ryota Kakuma and Andreas Kelz and W. Kollatschny and Eiichiro Komatsu and Mirko Krumpe and Martin Landriau and Chenxu Liu and Maja Lujan Niemeyer and Phillip MacQueen and Jennifer Marshall and Ken Mawatari and Emily M. McLinden and Shiro Mukae and Gautam Nagaraj and Yoshiaki Ono and Masami Ouchi and Casey Papovich and Nao Sakai and Shun Saito and Donald P. Schneider and Andreas Schulze and Khavvia Shanmugasundararaj and Matthew Shetrone and Chris Sneden and Jan Snigula and Matthias Steinmetz and Benjamin P. Thomas and Brianna Thomas and Sarah Tuttle and Tanya Urrutia and Lutz Wisotzki and Isak Wold and Gregory Zeimann and Yechi Zhang},
journal= {arXiv preprint arXiv:2110.04298},
year = {2022}
}
备注
51 pages, accepted for publication in the Astrophysical Journal