论文标题
星系的[OII]光度的通用条件分布函数，以及在红移$ z <3 $处的[OII]光度函数的预测
Universal conditional distribution function of [OII] luminosity of galaxies, and prediction for the [OII] luminosity function at redshift $z<3$
论文作者
论文摘要
具有强[OII]双线的星形发射线星系（ELG）是正在进行的和即将进行的第四代星系红移调查的主要光谱目标之一。在这项工作中，我们测量了[OII]光度$ l _ {\ Mathrm {[[OII]}} $和近距离粉状频带绝对幅度$ M _ {\ Mathrm {nuv}} $，用于大量的星系中的大量星系中的公开范围的$ 0.6 \ le leq z <1.45 $ plyq <1.45 $ qubive z <1.45 $。外冲红移调查（毒蛇）。我们旨在通过贝叶斯分析构建$ l _ {\ mathrm {[oii]}} $和$ m _ {\ mathrm {nuv}} $之间的内在关系。特别是，我们开发了两种不同的方法，以正确纠正[OII]发射线测量中的不完整效果和观察错误。我们的结果表明，在给定的$ m _ {\ mathrm {\ mathrm {\ mathrm {\ mathrm {\ mathrm {\ mathrm {nuv}} $上的条件分布可以通过通用概率分布函数（PDF）很好地描述，该函数（pdf）独立于$ m _ {\ mathrm {\ mathrm {\ mathrm {nuv} $ {将$ l _ {\ mathrm {[oii]}} $有条件pdf与文献中可用的nuv亮度函数（LF）一起进行，我们在$ z <3 $中对[oii] lfs进行预测。预测的[OII] LFS与文献的观察结果非常吻合。最后，我们利用预测的[OII] LFS来估计Subaru Prime焦点光谱仪（PFS）调查的[OII]发射器的数量计数。 $ l _ {\ mathrm {[OII]}} $的通用条件PDF提供了一种新颖的方法，可以在未来的Galaxy Redshift调查中优化[OII]发射器的源靶向策略，并在星系构建理论中建模[OII] Emitters。
The star-forming emission line galaxies (ELGs) with strong [OII] doublet are one of the main spectroscopic targets for the ongoing and upcoming fourth generation galaxy redshift surveys. In this work, we measure the [OII] luminosity $L_{\mathrm{[OII]}}$ and the near-ultraviolet band absolute magnitude $M_{\mathrm{NUV}}$ for a large sample of galaxies in the redshift range of $0.6\leq z <1.45$ from the Public Data Release 2 (PDR-2) of the VIMOS Public Extragalactic Redshift Survey (VIPERS). We aim to construct the intrinsic relationship between the $L_{\mathrm{[OII]}}$ and $M_{\mathrm{NUV}}$ through Bayesian analysis. In particular, we develop two different methods to properly correct for the incompleteness effect and observational errors in the [OII] emission line measurement. Our results indicate that the conditional distribution of $L_{\mathrm{[OII]}}$ at a given $M_{\mathrm{NUV}}$ can be well described by a universal probability distribution function (PDF), which is independent of $M_{\mathrm{NUV}}$ or redshift. Convolving the $L_{\mathrm{[OII]}}$ conditional PDF with the NUV Luminosity function (LF) available in the literature, we make a prediction for [OII] LFs at $z<3$. The predicted [OII] LFs are in good agreement with the observational results from the literature. Finally, we utilize the predicted [OII] LFs to estimate the number counts of [OII] emitters for the Subaru Prime Focus Spectrograph (PFS) survey. This universal conditional PDF of $L_{\mathrm{[OII]}}$ provides a novel way to optimize the source targeting strategy for [OII] emitters in future galaxy redshift surveys, and to model [OII] emitters in theories of galaxy formation.
