Galaxy properties derived with spectral energy distribution fitting in the Hawaii-Hubble Deep Field-North

被引:0
|
作者
Fang-You Gao
Jun-Yao Li
Yong-Quan Xue
机构
[1] CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China
[2] School of Astronomy and Space Science, University of Science and Technology of China
基金
中国国家自然科学基金;
关键词
catalogs; galaxies: fundamental parameters; galaxies: star formation;
D O I
暂无
中图分类号
P152 [恒星天文学、星系天文学];
学科分类号
摘要
We compile multi-wavelength data from ultraviolet to infrared(IR) bands as well as redshift and source-type information, for a large sample of 178 341 sources in the Hawaii-Hubble Deep Field-North field. A total of 145 635 sources among the full sample are classified/treated as galaxies and have redshift information available. We derive physical properties for these sources utilizing the spectral energy distribution fitting code CIGALE that is based on Bayesian analysis. Through various consistency and robustness checks, we find that our stellar-mass and star-formation rate(SFR) estimates are reliable, which is mainly due to two facts. Firstly, we adopt the most up-to-date and accurate redshifts and point spread functionmatched photometry; and secondly, we make sensible parameter choices with the CIGALE code and take into account the influences of mid-IR/far-IR data, star-formation history models, and AGN contribution. We release our catalog of galaxy properties publicly(including, e.g., redshift, stellar mass, SFR, age, metallicity, dust attenuation). It is the largest of its kind in this field and should facilitate future relevant studies on the formation and evolution of galaxies.
引用
收藏
页码:55 / 72
页数:18
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