Evolving Extragalactic Background and Luminosity Density

Comoving spectral luminosity density and Extragalactic background light (EBL) from 0.5 to 5 microns (comoving wavelength) from galaxies as predicted using the mean spectral energy distribution (SED) of galaxies measured in Lake and Wright (2016, DOI: 10.21105/astro.1603.0729) and the luminosity function (LF) Markov chain Monte Carlo (MCMC) posterior chains from Lake et al. (2017c). The LF posterior chains are available from Figshare under DOI: 10.6084/m9.figshare.4109625 . The files named 'SpectralLumaDens' contain the evolving spectral luminosity density, in units of kJy / Mpc. The files named 'EvolvingEBL' contain the evolving EBL in kJy / sr. Both files are available in flexible image transport system (fits, https://fits.gsfc.nasa.gov/) format. A full description of how these files were produced is in Lake et al. (2019).本数据集包含基于Lake与Wright（2016，DOI: 10.21105/astro.1603.0729）中测得的星系平均光谱能量分布（spectral energy distribution, SED），以及Lake等人（2017c）发布的光度函数（luminosity function, LF）马尔可夫链蒙特卡洛（Markov chain Monte Carlo, MCMC）后验链，以此预测得到波长范围为0.5至5微米（共动波长）的星系共动光谱光度密度与河外背景光（Extragalactic background light, EBL）。该光度函数后验链可于Figshare平台获取，对应DOI为10.6084/m9.figshare.4109625。名为"SpectralLumaDens"的文件存储了随演化变化的光谱光度密度，单位为千央斯基/百万秒差距（kJy / Mpc）；名为"EvolvingEBL"的文件存储了随演化变化的河外背景光，单位为千央斯基/球面度（kJy / sr）。两类文件均采用柔性图像传输系统（flexible image transport system, FITS）格式，格式规范可参考https://fits.gsfc.nasa.gov/。关于这些文件生成方式的完整说明，请参见Lake等人（2019）的研究成果。