中文

NIKA2 Sunyaev-Zeldovich大计划:样本与即将到来的产品公开释放

宇宙学与河外天体物理 2024-04-05 v1

摘要

运行于IRAM 30米望远镜的NIKA2相机擅长对中等及高红移星系团的热Sunyaev-Zeldovich效应进行高角分辨率成像。作为NIKA2保障时间的一部分,SZ大计划(LPSZ)旨在对Planck卫星和Atacama宇宙学望远镜目录中SZ选出的、且经XMM Newton或Chandra进行X射线观测的星系团代表性样本进行tSZ成像。在2023年1月完成观测后,我们呈现了38个星系团 spanning 目标质量(3<M500/1014M<103 < M_{500}/10^{14} M_{\odot} < 10)和红移(0.5<z<0.90.5 < z < 0.9)范围的tSZ图。针对单个星系团的首次深入研究凸显了在相似角分辨率下结合tSZ与X射线观测以实现精确质量测量的潜力。这些是为开发标准数据分析流水线以从NIKA2原始数据得到星系团热力学性质、用于即将到来的LPSZ数据释放的里程碑。最终产品将包含利用独特的SZ选定样本对平均压强剖面和质量可观测量标度关系的空前测量,这对最终提升基于星系团的宇宙学精度至关重要。

关键词

引用

@article{arxiv.2310.04553,
  title  = {The NIKA2 Sunyaev-Zeldovich Large Program: Sample and upcoming product public release},
  author = {L. Perotto and R. Adam and P. Ade and H. Ajeddig and P. André and E. Artis and H. Aussel and R. Barrena and I. Bartalucci and A. Beelen and A. Benoît and S. Berta and L. Bing and O. Bourrion and M. Calvo and A. Catalano and M. De Petris and F. -X. Désert and S. Doyle and E. F. C. Driessen and G. Ejlali and A. Ferragamo and A. Gomez and J. Goupy and C. Hanser and S. Katsioli and F. Kéruzoré and C. Kramer and B. Ladjelate and G. Lagache and S. Leclercq and J. -F. Lestrade and J. -F. Macías-Pérez and S. C. Madden and A. Maury and P. Mauskopf and F. Mayet and A. Monfardini and A. Moyer-Anin and M. Muñoz-Echeverría and A. Paliwal and G. Pisano and E. Pointecouteau and N. Ponthieu and G. W. Pratt and V. Revéret and A. J. Rigby and A. Ritacco and C. Romero and H. Roussel and F. Ruppin and K. Schuster and A. Sievers and C. Tucker and G. Yepes},
  journal= {arXiv preprint arXiv:2310.04553},
  year   = {2024}
}

备注

to appear in Proc. of the mm Universe 2023 conference, Grenoble (France), June 2023, published by F. Mayet et al. (Eds), EPJ Web of conferences, EDP Sciences