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相关论文: Green valley galaxies in the cosmic web: internal …

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We present quantitative morphologies of ~300 galaxies in the optically-defined green valley at 0.4<z<1.2, in order to constrain the mechanism(s) responsible for quenching star formation in the bulk of this population. The sample is selected…

宇宙学与河外天体物理 · 物理学 2015-05-27 Alexander J. Mendez , Alison L. Coil , Jennifer Lotz , Samir Salim , John Moustakas , Luc Simard

We present a comparative analysis of the properties of passive, star-forming and transition (green valley) galaxies, in four discrete environments: field, groups, the outskirts and the core of X-ray clusters. We construct samples of…

星系天体物理 · 物理学 2017-12-20 Valeria Coenda , Héctor J. Martínez , Hernán Muriel

We present a research of morphologies, spectra and environments of $\approx$ 2350 "green valley" galaxies at $0.2<z<1.0$ in the COSMOS field. The bimodality of dust-corrected \nuvr\ color is used to define "green valley" (thereafter, GV),…

星系天体物理 · 物理学 2015-06-17 Zhizheng Pan , Xu Kong , Lulu Fan

To investigate the effects of environment in the quenching phase, we study the empirical relations for green valley (GV) galaxies between overdensity and other physical properties (i.e., effective radius $r_{\rm e}$, S\'{e}rsic indices $n$,…

星系天体物理 · 物理学 2022-09-07 Wenjun Chang , Guanwen Fang , Yizhou Gu , Zesen Lin , Shiying Lu , Xu Kong

To explore the evolutionary connection among red, green, and blue galaxy populations, based on a sample of massive ($M_* > 10^{10} M_{\odot} $) galaxies at 0.5<z<2.5 in five 3D-HST/CANDELS fields, we investigate the dust content,…

星系天体物理 · 物理学 2018-04-16 Yizhou Gu , Guanwen Fang , Qirong Yuan , Zhenyi Cai , Tao Wang

Green valley (GV) galaxies are thought to represent a transitional population between star-forming and quiescent systems. However, their spatial distribution relative to galaxy systems remains unclear, particularly in relation to the…

星系天体物理 · 物理学 2026-04-28 Selene Levis , Facundo Rodriguez , Héctor J. Martínez , Valeria Coenda , Hernán Muriel

We measure the rate of environmentally-driven star formation quenching in galaxies at $z\sim 1$, using eleven massive ($M\approx 2\times10^{14}\,\mathrm{M}_\odot$) galaxy clusters spanning a redshift range $1.0<z<1.4$ from the GOGREEN…

We compare low-redshift ($z<0.1$) BPT-selected pure optical AGN hosts in SDSS DR7 to colour-selected "green-valley" analogue central galaxies in IllustrisTNG100 and EAGLE Ref-L0100N1504. To reduce cross-dataset systematics, we define the…

星系天体物理 · 物理学 2025-12-30 Gaurav Gawade

Green valley galaxies represent the population that is likely to transition from the star-forming to the quiescent phases. To investigate the role of the environment in quenching star formation, we use the wide-field data from the Hyper…

We study the correlation between galaxy structure and the quenching of star formation using a sample of SDSS central galaxies with stellar masses 9.75< log M_*/M_sun<11.25 and redshifts z<0.075. GALEX UV data are used to cleanly divide the…

宇宙学与河外天体物理 · 物理学 2015-06-17 Jerome J. Fang , S. M. Faber , David C. Koo , Avishai Dekel

We use SDSS+\textit{GALEX}+Galaxy Zoo data to study the quenching of star formation in low-redshift galaxies. We show that the green valley between the blue cloud of star-forming galaxies and the red sequence of quiescent galaxies in the…

Using multi-wavelength data, from UV-optical-near-mid IR, for $\sim$6000 galaxies in the local Universe, we study the dependence of star formation on the morphological T-types for massive galaxies ($\log M_*/M_\odot \geq 10$). We find that,…

星系天体物理 · 物理学 2017-08-16 Omkar Bait , Sudhanshu Barway , Yogesh Wadadekar

The evolution of galaxies is significantly influenced by the environments they inhabit. While high-density regions, such as clusters of galaxies have been widely studied, the dynamics and quenching processes in intermediate environments…

Galaxies infalling into clusters undergo both star-formation quenching and morphological transformation due to environmental effects. We investigate these processes and their timescales using a local sample of 20,191 cluster and 11,674…

We have selected a sample of nearby galaxies from Sloan Digital Sky Survey Data Release 7 (SDSS DR7) to investigate the physical properties variation from blue cloud to green valley to red sequence. The sample is limited in a narrow range…

星系天体物理 · 物理学 2018-08-07 Xue Ge , Qiu-Sheng Gu , Yong-Yun Chen , Nan Ding

We study the evolution of the progenitors of the present-day Green Valley (GV) galaxies across redshift $z=10-0$ using data from the EAGLE simulations. We identify the present-day green valley galaxies using entropic thresholding and track…

星系天体物理 · 物理学 2025-06-24 Apashanka Das , Biswajit Pandey

Statistically, green valley (GV) galaxies exhibit lower molecular gas fractions ($f_{gas}$) and reduced star formation efficiency (SFE) compared to star-forming galaxies. However, it remains unclear whether quenching is primarily driven by…

The distribution of galaxies on the mass-size plane as a function of redshift or environment is a powerful test for galaxy formation models. Here we use integral-field stellar kinematics to interpret the variation of the mass-size…

宇宙学与河外天体物理 · 物理学 2013-11-01 Michele Cappellari

Environment is one of the key external drivers of the galaxies, while active galactic nucleus (AGN) is one of the key internal drivers. Both of them play fundamental roles in regulating the formation and evolution of galaxies. We explore…

星系天体物理 · 物理学 2019-07-04 Zhong-yi Man , Ying-jie Peng , Xu Kong , Ke-xin Guo , Cheng-peng Zhang , Jing Dou

We calculate the star formation quenching timescales in green valley galaxies at intermediate redshifts ($z\sim0.5-1$) using stacked zCOSMOS spectra of different galaxy morphological types: spheroidal, disk-like, irregular and merger,…

星系天体物理 · 物理学 2017-09-22 J. P. Nogueira-Cavalcante , T. S. Gonçalves , K. Menéndez-Delmestre , K. Sheth
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