C3VO

Charting Cluster Construction with VUDS and ORELSE

Overview

The Charting Cluster Construction with VUDS and ORELSE (C3VO) survey, an ongoing campaign designed to provide a nearly complete mapping of the five most significant overdensities detected in VIMOS Ultra–Deep Survey (VUDS, see Fig 1, and the list of protoclusters in Fields), The C3VO survey utilizes spectra from observations with both DEIMOS and MOSFIRE on the Keck I/II telescopes (see Fig 2) and VUDS, and employs the Voronoi Monte-Carlo algorithm for local environment measurement, originally developed within the framework of the ORELSE survey,. The keck component of the C3VO survey is designed to target star-forming galaxies of all types to i_AB < 25.3 (or ∼ L*FUV at z ∼ 4.5 and < L*FUV at z ∼ 2.5) and Lyman-α emitting galaxies to fainter magnitudes.

The main goals are:
  • Mapping the growth of structure from z~0.5 to z~5
  • Probing the evolution of galaxies in LSSs across cosmic time
  • Develop detection methods to find forming clusters (protoclusters)
  • Detection biases for proto-clusters using different galaxy types
  • Relationship between, color, star-formation, stellar mass, AGN activity, and density
  • Characterizing the virialization state of protoclusters

Fields

Fig. 1. Footprint of VIMOS Ultra–Deep Survey (VUDS) and other imaging surveys in COSMOS, ECDFS and CFHTLS-D1 field (from left to right).

The C3VO-Keck Campaign

Fig. 2. The improvement of protocluster identification with high spectroscopic fraction. Left: Examples of the overdensity maps using only spectra of Keck DEIMOS/MOSFIRE conducted as part of C3VO. Right top: the photometric redshift versus redshift from Keck spectra. Right bottom: Histograms of spectroscopically-confirmed redshift from Keck DEIMOS and MOSFIRE from C3VO survey.

C3VO Massive Protostructures

Hyperion: Proto-structure at z ~ 2.5 in the COSMOS field (Cucciati et al. 2018, Cucciati et al. 2023)
Protocluster PClJ1000+0200 at z ~ 2.9 in the COSMOS field (Cucciati et al. 2014)
Proto-structure PCl J0227-0421 at z ~ 3.3 in the CFHTLS-D1 field (Lemaux et al. 2014, Shen et al. 2021)
Elentári: Proto-structure at z ~ 3.3 in the COSMOS field (McConachie et al. 2022, Forrest et al. 2023)
Protocluster at z ~ 3.5 in the ECDFS field (Forrest et al. 2017,Shah et al. 2024a, Shah et al. 2024b)
Protocluster PCl J1001+0220 at z ~ 4.6 in the COSMOS field (Lemaux et al. 2018, Staab et al. 2024)

Publications

Discovering Large-Scale Structure at 2 < z < 5 in the C3VO Survey
Denise Hung, Brian C. Lemaux, Olga Cucciati, et al. 2024
Enhanced AGN Activity in Overdense Galactic Environments at 2 < z < 4
Ekta Shah, Brian C. Lemaux, Ben Forrest, et al. 2024
Environmental Effects on the Stellar Mass Function in a z ∼ 3.3 Overdensity of Galaxies in the COSMOS Field
Ben Forrest, Brian C. Lemaux, Ekta Shah, et al. 2024
Identification and characterization of six spectroscopically confirmed massive protostructures at 2.5 < z < 4.5
Ekta Shah, Brian C. Lemaux, Ben Forrest, et al. 2024
Protoclusters as Drivers of Stellar Mass Growth in the Early Universe, a Case Study: Taralay - a Massive Protocluster at z ∼ 4.57
Priti Staab, Brian C. Lemaux, Ben Forrest, et al. 2024
Elentári: A z ~ 3.3 Proto-Supercluster in COSMOS
Ben Forrest, Brian C. Lemaux, Ekta Shah, et al. 2023
The VIMOS Ultra Deep Survey: The Reversal of the Star Formation Rate - Density Relation at 2 < z < 5
Brian C. Lemaux, Olga Cucciati, Olivier Le Fèvre, et al. 2022
Implications of the Environments of Radio-detected Active Galactic Nuclei in a Complex Protostructure at z ~ 3.3
Lu Shen, Brian C. Lemaux, Lori M. Lubin, et al. 2021

Related Publications

Galaxy and structure formation before the cosmic noon. The perspective with galaxy spectroscopic surveys
Olga Cucciati, Gabriella de Lucia, Fabio Fontanot et al. 2023
Evaluating Lyα Emission as a Tracer of the Largest Cosmic Structure at z ~ 2.47
Yun Huang, Kyoung-Soo Lee, Olga Cucciati, et al. 2022
Investigating the Effect of Galaxy Interactions on Star Formation at 0.5 < z < 5
Ekta A. Shah, Jeyhan S. Kartaltepe, Christina T. Magagnoli, et al. 2022
The ALPINE-ALMA [C II] survey: Investigation of 10 galaxies at z 4.5 with [O II] and [C II] line emission - ISM properties and [O II]-SFR relation
Brittany N. Vanderhoof, A. L. Faisst, L. Shen, et al. 2022
A population of ultraviolet-dim protoclusters detected in absorption
Andrew B. Newman, Gwen C. Rudie, Guillermo A. Blanc, et al. 2022
The ALPINE-ALMA [CII] survey. Circumgalactic medium pollution and gas mixing by tidal stripping in a merging system at z ~ 4.57
M. Ginolfi, G. C. Jones, M. Béthermin, et al. 2020