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Red ultra-compact massive galaxies, called red nuggets were formed at high redshifts ($\rm{z\sim2-3}$). Survivors of red nuggets, known as relics, observed at lower redshifts ($\rm{z<2}$) are believed to remain almost unchanged since their…

Astrophysics of Galaxies · Physics 2023-06-14 M. Siudek , K. Lisiecki , J. Krywult , D. Donevski , C. P. Haines , A. Karska , K. Małek , T. Moutard , A. Pollo

The role of the cosmic web in shaping galaxy properties is investigated in the GAMA spectroscopic survey in the redshift range $0.03 \leq z \leq 0.25$. The stellar mass, $u - r$ dust corrected colour and specific star formation rate (sSFR)…

We present a study of galaxy environments to z~2, based on a sample of over 33,000 K-band selected galaxies detected in the UKIDSS Ultra Deep Survey (UDS). The combination of infrared depth and area in the UDS allows us to extend previous…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 R. W. Chuter , O. Almaini , W. G. Hartley , R. J. McLure , J. S. Dunlop , S. Foucaud , C. J. Conselice , C. Simpson , M. Cirasuolo , E. J. Bradshaw

Galaxies arrive on the red sequences of clusters at high redshift ($z>1$) once their star formation is quenched and evolve passively thereafter. However, we have previously found that cluster red sequence galaxies (CRSGs) undergo…

Astrophysics of Galaxies · Physics 2016-09-07 Roberto De Propris , Malcolm Bremer , Steve Phillipps

We measure the evolution of the rest-frame $NUV-V$ colors for early-type galaxies in clusters at $0<z<1.1$ using data from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP), CFHT Large Area U-band Deep Survey (CLAUDS) and local SDSS…

This study investigates the evolution of the star-forming fraction ($F_{\mathrm{sf}}$) of Brightest Cluster Galaxies (BCGs) at $z<0.8$, using the galaxy clusters identified from the Legacy Imaging Surveys from the Dark Energy Spectroscopic…

Astrophysics of Galaxies · Physics 2025-12-04 Shufei Liu , Hu Zou , Jinfu Gou , Weijian Guo , Niu Li , Wenxiong Li , Gaurav Singh , Haoming Song , Jipeng Sui , Xi Tan , Yunao Xiao , Jingyi Zhang , Lu Feng

(Abridged) We report on the environmental dependence of properties of galaxies around the RDCSJ0910+54 cluster at z=1.1. We have obtained multi-band wide-field images of the cluster with Suprime-Cam and MOIRCS on Subaru and WFCAM on UKIRT.…

We have used HRCam on the CFHT to obtain subarcsecond images of 26 galaxies with z=0.1--0.7. The primary sample of 17 galaxies have enhanced star formation indicated by [OII] equivalent widths greater than 20\AA, while the comparison sample…

Astrophysics · Physics 2015-06-24 Matthew Colless , David Schade , T J Broadhurst , R S Ellis

Using a cosmological dark matter simulation of a galaxy-cluster halo, we follow the temporal evolution of its globular cluster population. To mimic the red and blue globular cluster populations, we select at high redshift $(z\sim 1)$ two…

Astrophysics of Galaxies · Physics 2018-02-07 Felipe Ramos-Almendares , Mario G. Abadi , Hernán Muriel , Valeria Coenda

It is well known from the Butcher-Oemler effect that galaxies in dense environment are mostly red with little star formation and the fraction of blue galaxies in galaxy groups/clusters also declines rapidly with redshifts. A recent work by…

Astrophysics of Galaxies · Physics 2021-01-13 Qingxin Wen , Yu Luo , Xi Kang

We examine the effectiveness of identifying distinct evolutionary histories in IllustrisTNG-100 galaxies using unsupervised machine learning with Gaussian Mixture Models. We focus on how clustering compressed metallicity histories and star…

Astrophysics of Galaxies · Physics 2023-04-18 Tristan Sohrab Fraser , Rita Tojeiro , Harry Chittenden

We present evolutionary synthesis models for galaxies of spectral types Sa through Sd with starbursts of various strengths triggered at various redshifts and study their photometric evolution before, during, and after their bursts in a…

Astrophysics · Physics 2022-05-11 Uta Fritze -- v. Alvensleben , Jens Bicker

We present deep, panoramic multi-color imaging of the distant rich cluster A851 (Cl0939+4713, z=0.41) using Suprime-Cam on Subaru. These images cover a 27' field of view, ~11 Mpc at z=0.41, and by exploiting photometric redshifts estimated…

Astrophysics · Physics 2009-11-07 Tadayuki Kodama , Ian Smail , F. Nakata , S. Okamura , R. G. Bower

We present a color analysis of the galaxy populations of candidate clusters of galaxies from the Palomar Distant Cluster Survey (Postman et al.\ 1996). The survey was conducted in two broad band filters that closely match $V$ and $I$ and…

Astrophysics · Physics 2009-10-28 Lori M. Lubin

Aims: We present a new method that uses luminosity or stellar mass functions combined with clustering measurements to select samples of galaxies at different redshifts likely to follow a progenitor-to-descendant relationship. As the method…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Nelson Padilla , Daniel Christlein , Eric Gawiser , Danilo Marchesini

We employ the hydrodynamical simulation IllustrisTNG-300-1 to explore the halo occupation distribution (HOD) and environmental dependence of luminous star-forming emission-line galaxies (ELGs) at $z \sim 1$. Such galaxies are key targets…

Astrophysics of Galaxies · Physics 2021-02-10 Boryana Hadzhiyska , Sandro Tacchella , Sownak Bose , Daniel J. Eisenstein

We measure the evolution of clustering for galaxies with different spectral types from 6495 galaxies with 17.5<=I_AB<=24 and measured spectroscopic redshift in the first epoch VIMOS-VLT Deep Survey. We classify our sample into 4 classes,…

Measurements of galaxy clustering are now becoming possible over a range of redshifts out to z=3. We use a semi-analytic model of galaxy formation to compute the expected evolution of the galaxy correlation function with redshift. We…

Astrophysics · Physics 2009-10-31 C. M. Baugh , A. J. Benson , S. Cole , C. S. Frenk , C. G. Lacey

We investigate environmental effects on evolution of bright cluster galaxies in a $\Lambda$ dominated cold dark matter universe using a combination of dissipationless N-body simulations and a semi-analytic galaxy formation model. The N-body…

Astrophysics · Physics 2009-11-07 Takashi Okamoto , Masahiro Nagashima

We investigate the evolution of the optical and near-infrared colour-magnitude relation in an homogeneous sample of massive clusters from z = 1 to the present epoch. By comparing deep Hubble Space Telescope ACS imaging of X-ray selected…

Cosmology and Nongalactic Astrophysics · Physics 2012-03-15 J. P. Stott , K. A. Pimbblet , A. C. Edge , G. P. Smith , J. L. Wardlow