论文标题
由Subaru Hyper Suprime-Cam深入捕获的被动螺旋星系
Passive spiral galaxies deeply captured by Subaru Hyper Suprime-Cam
论文作者
论文摘要
本文基于对Hyper Soprime-CAM Subaru战略计划(HSC-SSP PDR3)和Galex-SDSS-SDSS-WISE-WISE-WISE-WISE-WISE LECAGY CATALOG(GSWLC-2)的第三个公共数据发布的组合分析,以$ z = $ z = 0.01-0.3的一千个被动螺旋星系样本。在54871 $ GRI $ GALAXY切口中,在1072度$^2 $上取自HSC-SSP PDR3 $^2 $,我们进行了一项搜索,并对由UV在GSWLC-2中的UV衍生出的星形主序列衍生出的星形主序列下的被动式螺旋形候选者进行了深入学习的形态分类。然后,我们根据视觉检查将候选人分为1100个被动螺旋和1141个次要样本。后一种情况被认为是被动环S0或伪环星系。这些二次样品的其余部分具有模棱两可的形态,包括两个具有钻石形恒星翅膀的特殊物体。所选的被动螺旋具有与EW $ _ \ Mathrm {Hδ} $ - D $ _N $ 4000 $ 4000图和浓度指数的一般静态星系的相似分布。此外,我们检测到X射线簇中的螺旋星系的增强。星系簇中的被动螺旋形在相位图上优先位于中期或后期插入阶段,支持RAM压力方案,在先前的研究中已广泛提倡。源目录和$ GRI $ -COMPOSITES图像可在HSC-SSP PDR3网站(https://hsc.mtk.nao.ac.ac.jp/ssp/ssp/data-release/)上找到。未来的更新,包括与专门针对HSC数据的公民科学项目集成,将实现更有效和全面的分类。
This paper presents a thousand passive spiral galaxy samples at $z=$ 0.01-0.3 based on a combined analysis of the Third Public Data Release of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP PDR3) and the GALEX-SDSS-WISE Legacy Catalog (GSWLC-2). Among 54871 $gri$ galaxy cutouts taken from the HSC-SSP PDR3 over 1072 deg$^2$, we conducted a search with deep-learning morphological classification for candidates of passive spirals below the star-forming main sequence derived by UV to mid-IR SED fitting in the GSWLC-2. We then classified the candidates into 1100 passive spirals and 1141 secondary samples based on visual inspections. Most of the latter cases are considered to be passive ringed S0 or pseudo-ringed galaxies. The remainder of these secondary samples has ambiguous morphologies, including two peculiar objects with diamond-shaped stellar wings. The selected passive spirals have a similar distribution to the general quiescent galaxies on the EW$_\mathrm{Hδ}$-D$_n$4000 diagram and concentration indices. Moreover, we detected an enhanced passive fraction of spiral galaxies in X-ray clusters. Passive spirals in galaxy clusters are preferentially located in the midterm or late infall phase on the phase-space diagram, supporting the ram pressure scenario, which has been widely advocated in previous studies. The source catalog and $gri$-composite images are available on the HSC-SSP PDR3 website (https://hsc.mtk.nao.ac.jp/ssp/data-release/). Future updates, including integration with a citizen science project dedicated to the HSC data, will achieve more effective and comprehensive classifications.