论文标题
爱好 - 脑望远镜暗能量实验调查（HETDEX）II中的活性银河核II。光度函数
The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) II. Luminosity Function
论文作者
论文摘要
我们介绍了活性银河核（AGN）的LYA发射线光度函数（LF），这在Hobby-eberly theScope Dark Energy实验调查（HETDEX）AGN目录的首次发行中（Liu等，2022，Paper I）。 AGN是通过AGN的发射线对或单个宽发射线的特征选择的，没有任何光度预选（幅度/颜色/形态）。样品由2,346个AGN组成，涉及1.88 <z <3.53，覆盖有效面积为30.61度^2。在我们搜索的最深$ r $ band图像中，未检测到约2.6个Hetdex AGN的Hetdex AGN。 Lya线的光度范围为〜10^42.3至〜10^45.9 ERG S^-1。我们的lya lf显示了一个失误的发光度，在明亮的端和微弱的末端，相反的斜率：l_lya^*= 10^43.4 erg s^-1的空间密度最高。 我们探索在更广泛的红移范围内AGN LF的演变（0.8 <z <3）；用M_1450〜-18至〜-27.5构建使用Continuum（$ \ rm M_ {1450} $）的1450 AA单色光度（$ \ rm M_ {1450} $）的1450 AA单色光度的LF。我们将样品分为三个红移箱（z〜1.5、2.1和2.6）。在所有三个红移垃圾箱中，我们的UV LFS表明AGN的空间密度最高，在离职亮度M_1450^**上，明亮的端和微弱的末端，相反的斜率。三个红移箱中的M_1450 LFS可以很好地拟合，并具有亮度进化密度进化（LEDE）模型：转移亮度（M_1450^*）的增加，并且周转密度（PHI^*）随着红移的增加而增加。
We present the LyA emission line luminosity function (LF) of the Active Galactic Nuclei (AGN) in the first release of the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) AGN catalog (Liu et al. 2022, Paper I). The AGN are selected either by emission-line pairs characteristic of AGN or by single broad emission line, free of any photometric pre-selections (magnitude/color/morphology). The sample consists of 2,346 AGN spanning 1.88<z<3.53, covering an effective area of 30.61 deg^2. Approximately 2.6 of the HETDEX AGN are not detected at $>5σ$ confidence at r~26 in the deepest $r$-band images we have searched. The LyA line luminosity ranges from ~10^42.3 to ~10^45.9 erg s^-1. Our LyA LF shows a turnover luminosity with opposite slopes on the bright end and the faint end: The space density is highest at L_LyA^*=10^43.4 erg s^-1. We explore the evolution of the AGN LF over a broader redshift range (0.8<z<3); constructing the rest-frame ultraviolet (UV) LF with the 1450 AA monochromatic luminosity of the power-law component of the continuum ($\rm M_{1450}$) from M_1450~-18 to ~-27.5. We divide the sample into three redshift bins (z~1.5, 2.1, and 2.6). In all three redshift bins, our UV LFs indicate that the space density of AGN is highest at the turnover luminosity M_1450^* with opposite slopes on the bright end and the faint end. The M_1450 LFs in the three redshift bins can be well-fit with a luminosity-evolution-density-evolution (LEDE) model: the turnover luminosity (M_1450^*) increases and the turnover density (Phi^*) decreases with increasing redshift.
