论文标题
kids-dr3中的Amico Galaxy簇：Z = 0.1和Z = 0.8之间的光度函数的演变
AMICO galaxy clusters in KiDS-DR3: Evolution of the luminosity function between z=0.1 and z=0.8
论文作者
论文摘要
通过$ r $ band的光度功能（LF）的星系中的$ 4000群集的样本，该样本由cluster finder amico检测到的Kids-DR3面积约为400度$^2 $，我们研究了被动进化（RED），星星（RED），形式（蓝色）和总计的Galaxy和Total Galaxy和Totalles和Total Galaxy的进化。对红移范围[0.1,0.8]和质量范围[$ 10^{13} m _ {\ odot} $，$ 10^{15} m _ {\ odot} $]进行了分析。为了计算LFS，我们在幅度上划分了光度分布，并从统计上减去了背景。然后，我们将簇样品分为红移和丰富度/质量的箱子。我们将LF计数堆叠在每个2D箱中，总体，红色和蓝色的星系人群；最后，我们将堆叠的LF拟合了Schechter功能，并以红移和丰富度/质量研究了其参数的趋势。我们发现了LF的明亮部分的被动演化，红色和总体人口的明亮部分，对于微弱的星系没有明显的趋势。对于密度参数$φ_ {\ star} $的密度参数的质量/丰富性依赖性是清楚的，随着丰富度的增加，总体终端微弱，这在富簇中很浅。
By means of the $r$-band luminosity function (LF) of galaxies in a sample of about 4000 clusters detected by the cluster finder AMICO in the KiDS-DR3 area of about 400 deg$^2$, we studied the evolution with richness and redshift of the passive evolving (red), star-forming (blue), and total galaxy populations. This analysis was performed for clusters in the redshift range [0.1,0.8] and in the mass range [$10^{13} M_{\odot}$,$10^{15} M_{\odot}$]. To compute LFs, we binned the luminosity distribution in magnitude and statistically subtracted the background. Then, we divided the cluster sample in bins of both redshift and richness/mass. We stacked LF counts in each 2D bin for the total, red, and blue galaxy populations; finally, we fitted the stacked LF with a Schechter function and studied the trend of its parameters with redshift and richness/mass. We found a passive evolution with $z$ for the bright part of the LF for the red and total populations and no significant trends for the faint galaxies. The mass/richness dependence is clear for the density parameter $Φ_{\star}$, increasing with richness, and for the total population faint end, which is shallower in the rich clusters.
