University of Waterloo
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
Phone: (519) 888-4567 ext 32215
Fax: (519) 746-8115
Department of Astronomy & Astrophysics
University of Toronto
I will present an analysis of the quenching of star formation (SF) in galaxy clusters since z~1, based on a sample of 209 galaxy clusters from the SpARCS survey in the XMM-LSS and ELAIS-N1 fields, using publicly released photometric data from the Subaru HSC-SSP, the Spitzer SWIRE survey, and UKISS. In particular, we examine the star-forming galaxy fraction (f_SF) as a function of redshift, galaxy stellar mass, and cluster-centric radius and investigate the evolution of both environmental and mass quenching efficiencies. I will also discuss some preliminary results on the SFR-stellar mass relation (the "main sequence") in the field and in clusters, using a combination of HSC-SSP and Spitzer SWIRE MIPS data, over the same redshift range. Finally, I will present a first-look at the data from a new project which investigates the relationship between cluster environment and star formation in z~0.25 rich clusters using the new, wide-field, imaging Fourier transform spectrometer, SITELLE, at CFHT, obtaining 2D spectroscopic data in H-alpha/[NII] of cluster galaxies out to ~2R_200.
The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Indigenous Initiatives Office.