论文标题
HSC-SSP PDR2和合唱
A 16 deg$^2$ survey of emission-line galaxies at z<1.6 from HSC-SSP PDR2 and CHORUS
论文作者
论文摘要
我们已经根据Subaru望远镜上使用Hyper Suprime-CAM（HSC）进行的窄带（NB）成像数据进行了$ z \ Lessim1.6 $的排放线星系的全面调查。在本文中，我们使用Subaru战略计划的第二个公共数据发布（PDR2）的数据更新H $α$，[OIII]和[OII]发射线星系（HSC和宇宙氢的数据）和宇宙氢的数据，并与Subaru（Chorus）调查一起进行了callassies Survey-superies-superies-superies-superies-superies-superies-superies-susportline-sustipic redsift line- PDR1数据。 NB816和NB921的更广泛有效覆盖范围，分别为16.3 $^2 $和16.9度$^2 $，可从PDR2的HSC-SSP的深层层中获得。合唱调查为我们提供了超过层的Cosmos字段中的其他三个NB（NB527，NB718和NB973）（1.37 v $^2 $）。五个NB数据集允许我们调查以14个特定红移呈现排放线的星系星系，范围从$ z \ sim1.6 $下降到$ z \ sim0.05 $。我们重新审查了发射线星系的大规模结构和光度函数（LFS）的分布，其中选择了75,377个发射线星系的大样本。 LFS的红移革命表明，恒星形成率密度（SFRDS）单调降低了$ z \ sim1.6 $，这与宇宙SFRD一致。我们的发射线星系样品涵盖了足够大的测量量，对于研究星形星系的演变很有用，因为宇宙中午在包括星系簇，细丝和空隙在内的各种环境中。
We have conducted a comprehensive survey of emission-line galaxies at $z\lesssim1.6$ based on narrowband (NB) imaging data taken with Hyper Suprime-Cam (HSC) on the Subaru telescope. In this paper, we update the catalogs of H$α$, [OIII], and [OII] emission-line galaxies using the data from the second Public Data Release (PDR2) of Subaru Strategic Program (SSP) of HSC and Cosmic HydrOgen Reionization Unveiled with Subaru (CHORUS) survey along with the spectroscopic redshifts for 2,019 emission-line galaxies selected with the PDR1 data. The wider effective coverage of NB816 and NB921, 16.3 deg$^2$ and 16.9 deg$^2$ respectively, are available in the Deep and UltraDeep layers of HSC-SSP from the PDR2. The CHORUS survey provides us with data with additional three NBs (NB527, NB718, and NB973) in the COSMOS field in the UltraDeep layer (1.37 deg$^2$). The five NB datasets allow us to investigate the star-forming galaxies presenting emission-lines at 14 specific redshifts ranging from $z\sim1.6$ down to $z\sim0.05$. We revisit the distribution of large-scale structures and luminosity functions (LFs) for the emission-line galaxies with the large samples of 75,377 emission-line galaxies selected. The redshift revolution of LFs shows that the star formation rate densities (SFRDs) decreases monotonically from $z\sim1.6$, which is consistent with the cosmic SFRD ever known. Our samples of emission-line galaxies covering a sufficiently large survey volume are useful to investigate the evolution of star-forming galaxies since the cosmic noon in a wide range of environments including galaxy clusters, filaments, and voids.
