暗能量巡天六年校准星表
天体物理仪器与方法
2023-05-04 v1
摘要
本技术报告介绍了一份由前向校准方法（FGCM）流水线（arXiv:1706.01542）生成的校准参考星表，该星表作为完整暗能量巡天（DES）六年数据集（Y6）FGCM测光校准的一部分。该星表提供了1700万颗恒星的DES grizY波段星等，其i波段星等大多在16 < i < 21范围内，分布于完整的DES覆盖区域，即南银冠 galactic latitudes b < -20度（外加少数与主巡天区域不相连的外围场）内5000平方度的天区。这些恒星在整个巡天区域内的校准均匀性优于1.8毫星等（0.18%）RMS。星表的绝对校准参考了哈勃空间望远镜CalSpec标准星C26202的STISNIC.007光谱进行计算；包含系统误差在内，绝对流量系统已知精度约为1%。因此，这些恒星为南半球grizY波段或类grizY波段测光校准提供了有用的参考星表，尤其适用于DES覆盖区域内的观测。
引用
@article{arxiv.2305.01695,
title = {The Dark Energy Survey Six-Year Calibration Star Catalog},
author = {E. S. Rykoff and D. L. Tucker and D. L. Burke and S. S. Allam and K. Bechtol and G. M. Bernstein and D. Brout and R. A. Gruendl and J. Lasker and J. A. Smith and W. C. Wester and B. Yanny and T. M. C. Abbott and M. Aguena and O. Alves and F. Andrade-Oliveira and J. Annis and D. Bacon and E. Bertin and D. Brooks and A. Carnero Rosell and J. Carretero and F. J. Castander and A. Choi and L. N. da Costa and M. E. S. Pereira and T. M. Davis and J. De Vicente and H. T. Diehl and P. Doel and A. Drlica-Wagner and S. Everett and I. Ferrero and J. Frieman and J. García-Bellido and G. Giannini and D. Gruen and G. Gutierrez and S. R. Hinton and D. L. Hollowood and D. J. James and K. Kuehn and O. Lahav and J. L. Marshall and J. Mena-Fernández and F. Menanteau and J. Myles and B. D. Nord and R. L. C. Ogando and A. Palmese and A. Pieres and A. A. Plazas Malagón and M. Raveri and M. Rodgríguez-Monroy and E. Sanchez and B. Santiago and M. Schubnell and I. Sevilla-Noarbe and M. Smith and M. Soares-Santos and E. Suchyta and M. E. C. Swanson and T. N. Varga and M. Vincenzi and A. R. Walker and N. Weaverdyck and P. Wiseman},
journal= {arXiv preprint arXiv:2305.01695},
year = {2023}
}
备注
21 pages, 15 figures, Fermilab Technical Note. Official Data Access Site: https://des.ncsa.illinois.edu/releases/other ; Temporary Data Access Site: https://data.darkenergysurvey.org/public_calib/DES_6yr_CalibStarCat/index.html