CANDELS 多波段星表:GOODS-S 场的源探测与测光
摘要
我们发布了 CANDELS/GOODS-S 场的紫外至中红外多波段星表,该星表结合了新获取的 CANDELS HST/WFC3 F105W、F125W 和 F160W 数据与现有的公开数据。星表基于 WFC3 F160W 波段的源探测构建。F160W 拼接图包含了来自 CANDELS 深场和宽场观测以及先前 ERS 和 HUDF09 项目的数据。该拼接图在半径为 0.17 角秒的光圈内达到的 5 极限深度分别为:CANDELS 宽场区 27.4 AB,深场区 28.2 AB,HUDF 区 29.7 AB。星表包含 34930 个源,在 F160W 波段,这三个区域的代表性 50% 完备性极限分别达到 25.9、26.6 和 28.1 AB。除 WFC3 波段外,该星表还包含了紫外(来自 CTIO/MOSAIC 和 VLT/VIMOS 的 U 波段)、光学(HST/ACS F435W、F606W、F775W、F814W 和 F850LP)以及红外(HST/WFC3 F098M、VLT/ISAAC Ks、VLT/HAWK-I Ks 和 Spitzer/IRAC 3.6、4.5、5.8、8.0 m)观测数据。通过恒星颜色、与其他已发布星表的比较、从光谱观测对象的光谱能量分布最佳拟合模板确定的零点偏移,以及光度红移的准确性,对该星表进行了验证。该星表能够在 50% 完备性水平上探测到恒星质量为 10^{10}M_\odot 的无消光恒星形成(或被动)星系,在三个区域分别可达 z3.4 (2.8)、4.6 (3.2) 和 7.0 (4.2)。作为应用示例,该星表被用于通过 Balmer 断折选择 z2--4 的恒星形成星系和被动星系。它也被用于研究 0<z<4 星系的色星等图。
引用
@article{arxiv.1308.4405,
title = {CANDELS Multi-wavelength Catalogs: Source Detection and Photometry in the GOODS-South Field},
author = {Yicheng Guo and Henry C. Ferguson and Mauro Giavalisco and Guillermo Barro and S. P. Willner and Matthew L. N. Ashby and Tomas Dahlen and Jennifer L. Donley and Sandra M. Faber and Adriano Fontana and Audrey Galametz and Andrea Grazian and Kuang-Han Huang and Dale D. Kocevski and Anton M. Koekemoer and David C. Koo and Elizabeth J. McGrath and Michael Peth and Mara Salvato and Stijn Wuyts and Marco Castellano and Asantha R. Cooray and Mark E. Dickinson and James S. Dunlop and G. G. Fazio and Jonathan P. Gardner and Eric Gawiser and Norman A. Grogin and Nimish P. Hathi and Li-Ting Hsu and Kyoung-Soo Lee and Ray A. Lucas and Bahram Mobasher and Kirpal Nandra and Jeffery A. Newman and Arjen van der Wel},
journal= {arXiv preprint arXiv:1308.4405},
year = {2015}
}
备注
The full resolution article is now published in ApJS (2013, 207, 24). 22 pages, 21 figures, and 5 tables. The catalogue is available on the CANDELS website: http://candels.ucolick.org/data_access/GOODS-S.html MAST: http://archive.stsci.edu/prepds/candels and Rainbow Database: https://arcoiris.ucolick.org/Rainbow_navigator_public and https://rainbowx.fis.ucm.es/Rainbow_navigator_public