The Observations of Redshift Evolution in Large Scale Environments

The ORELSE survey is a wide-field survey dedicated to studying galaxy evolution across the full range of local environments with extensive photometric and spectroscopic observations of multiple well-known galaxy overdensities at z ~ 1. Recently, we move to higher redshift universe. The goal is to study the cluster evolution by linking these proto-Large Scale Structures (LSSs) to LSSs at z~1. To be continued.

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Science

The ORELSE survey

-- the sacred one

  • Map Out Large Scale Structure at z~1
  • Galaxy evolution across all environments
  • Relationship between color, star formation, stellar mass, morphology, and density
  • Developing new methods to detect and characterize structure
  • The triggering and co-evolution of Active Galactic Nuclei (AGN) activity
  • Characterizing the virialization state of clusters
  • Galaxy dynamics
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The C3VO survey

-- the golden one

Charting Cluster Construction with VUDS and ORELSE

  • 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
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Hung et al. 2024
Discovering Large-Scale Structure at 2 < z < 5 in the C3VO Survey
Shah et al. 2024b
Enhanced AGN Activity in Overdense Galactic Environments at 2 < z < 4
Forrest et al. 2024
Environmental Effects on the Stellar Mass Function in a z ∼ 3.3 Overdensity of Galaxies in the COSMOS Field
Staab 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
Shah et al. 2024a
Identification and characterization of six spectroscopically confirmed massive protostructures at 2.5 < z < 4.5
Forrest et al. 2023
Elentári: A massive proto-supercluster at z~3.3 in the COSMOS field
Lemaux et al. 2022
The VIMOS Ultra Deep Survey: The Reversal of the Star Formation Rate - Density Relation at 2 < z < 5
Shen et al. 2021
Implications of the Environments of Radio-detected AGNs in a Complex Protostructure at z∼3.3
Hung et al. 2021
An optical observational cluster mass function at z ∼ 1 with the ORELSE survey
Shen et al. 2020b
EXTENDED RADIO AGN AT z ∼ 1 IN THE ORELSE SURVEY: THE CONFINING EFFECT OF DENSE ENVIRONMENTS
Shen et al. 2020
The Properies of Radio-IR Galaxies and Environments on the co-evolution of AGN and Star Formation at z ∼ 1
Hung et al. 2020
Establishing a new technique for discovering large-scale structure using the ORELSE survey
Lemaux et al. 2019
Persistence of the colour-density relation and efficient environmental quenching to z ∼ 1.4
Tomczak et al. 2019
Conditional quenching: a detailed look at the SFR-density relation at z ∼ 0.9 from ORELSE
Pelliccia et al. 2019
Searching for environmental effects on galaxy kinematics in groups and clusters at z ∼ 1 from the ORELSE survey

The ORELSE Team

Lori Lubin1, Brian Lemaux2, Roy Gal3, Olga Cucciati4, Ben Forrest1, Ekta Shah1, Priti Staab1, Lu Shen5, Denise Hung3, Debora Pelliccia6, Olivier Le Fèvre7, Christopher D. Fassnacht1, Adam Tomczak1, Po-Feng Wu8, Dale Kocevski9, Gordon Squires10

1University of California, Davis, 2 GEMINI Observatory, 3University of Hawai’i, 4INAF - Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, 5 Texas A&M University, 6University of California, Santa Crus, 7Aix-Marseille Univ, 8National Astronomical Observatory of Japan, 9Colby College, 10California Institute of Technology.

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Dogs in the ORELSE family

Luna, Fitz

Radio

Hoku, Naia, and Akira

Wolf

Winston, Ella