Event Date
Speaker: Lori Lubin (Physics, UC Davis)
Title: "Understanding Cluster Formation and Galaxy Evolution ... ORELSE"
Abstract: The Observations of Redshift Evolution in Large Scale Environments (ORELSE) Survey is a systematic search for large scale structure on scales > 10 Mpc (or 3 x 10^20 km) around 18 known galaxy clusters at redshifts between z = 0.6-1.3 (or distances between 6 and 9 billion light years away from us). The survey covers 5 square degrees, all targeted at the most overdense regions of the Universe. The goal of survey is to study galaxy evolution across all scales -- from dense cluster cores to low-density, rarified environments. In this talk, I describe the survey design, the statistical galaxy sample, and the novel metrics we use to quantify galaxy environment. I present some recent results on using the large galaxy sample to create a quantifiable cluster catalog, measure key cosmological parameters, and characterize galaxy properties at a time when the universe was less than half its current age. Finally, I describe our latest program C3V0 to combine ORELSE with the higher-redshift survey VUDS to chart cluster formation and its effect on member galaxies over the last 12 billion years.
Seminar Date/Time: Thursday October 29th, 4:10pm
This seminar will be delivered remotely via Zoom. To access the Zoom meeting for this seminar, please contact the instructor Fushing Hsieh (fhsieh@ucdavis.edu) or Pete Scully (pscully@ucdavis.edu) for the meeting ID and password, stating your affiliation.