The DEEP Groth Strip Survey. II. Hubble Space Telescope Structural Parameters of Galaxies in the Groth Strip
The DEEP Groth Strip Survey. II. Hubble Space Telescope Structural Parameters of Galaxies in the Groth Strip
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DOI：
10.1086/341399
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发表时间：
2002-05
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影响因子：
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通讯作者：
Luc Simard;Luc Simard;C. Willmer;N. Vogt;N. Vogt;V. Sarajedini;V. Sarajedini;A. Phillips;B. Weiner;D. Koo;M. Im;M. Im;G. Illingworth;S. Faber
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文献类型：
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作者：
Luc Simard;Luc Simard;C. Willmer;N. Vogt;N. Vogt;V. Sarajedini;V. Sarajedini;A. Phillips;B. Weiner;D. Koo;M. Im;M. Im;G. Illingworth;S. Faber
遥远星系的定量形态分类对于理解星系在宇宙历史上的演化是必不可少的。本文介绍了哈勃太空望远镜WFPC2 F606W和F814W对“生长带”中7450个星系的光度结构参数。这些参数基于二维凸起+圆盘表面亮度模型，并通过这里详细描述的自动还原和分析管道获得。在每个带通中分别进行第一组配合，在两个带通上同时进行第二组配合。这两种类型的契合所产生的信息可以用来探索不同的科学目标。系统的和随机的拟合误差在所有的结构参数以及鼓和盘的颜色仔细表征通过广泛的模拟集。这些模拟结果在与真实科学目录相似的目录中给出，以便可以根据相同的选择标准对真实和模拟测量进行采样，以显示感兴趣的科学数据子集中的偏差和错误。通过仿真研究了非对称结构对回收凸盘拟合参数的影响。计算了生长带的全多维光度测量选择函数。这个选择函数与模拟的偏差图相结合，提供了观测极限的完整和客观的再现，这些极限可以应用于星系演化模型的理论预测，以便与数据进行直接比较。
The quantitative morphological classification of distant galaxies is essential to the understanding of the evolution of galaxies over the history of the universe. This paper presents Hubble Space Telescope WFPC2 F606W and F814W photometric structural parameters for 7450 galaxies in the "Groth Strip." These parameters are based on a two-dimensional bulge + disk surface brightness model and were obtained using an automated reduction and analysis pipeline described in detail here. A first set of fits was performed separately in each bandpass, and a second set of fits was performed simultaneously on both bandpasses. The information produced by these two types of fits can be used to explore different science goals. Systematic and random fitting errors in all structural parameters as well as bulge and disk colors are carefully characterized through extensive sets of simulations. The results of these simulations are given in catalogs similar to the real science catalogs so that both real and simulated measurements can be sampled according to the same selection criteria to show biases and errors in the science data subset of interest. The effects of asymmetric structures on the recovered bulge+disk fitting parameters are also explored through simulations. The full multidimensional photometric survey selection function of the Groth Strip is also computed. This selection function, coupled to bias maps from simulations, provides a complete and objective reproduction of the observational limits, and these limits can be applied to theoretical predictions from galaxy evolution models for direct comparisons with the data.