Ovi traces photoionized streams with collisionally ionized boundaries in cosmological simulations of z similar to 1 massive galaxies

Partial support for CS was provided by grant HST-AR-14578 toJP from the STScI under NASA contract NAS5-26555. SRF ac-knowledges support from a Spanish postdoctoral fellowship, undergrant number 2017- T2/TIC-5592. SRF also acknowledges finan-cial support from the Spanish Ministry of Economy and Com-petitiveness (MINECO) under grant number AYA2016-75808-R,AYA2017-90589-REDT and S2018/NMT-429, and from the CAM-UCM under grant number PR65/19-22462. NM acknowledges sup-port from the Klauss Tschira Foundation through the HITS YaleProgram in Astrophysics (HYPA), and from the Gordon and BettyMoore Foundation through Grant GBMF7392. JS is supported bythe CIERA Postdoctoral Fellowship Program. The VELA simula-tions were performed at the National Energy Research ScientificComputing Center (NERSC) at Lawrence Berkeley National Lab-oratory, and at NASA Advanced Supercomputing (NAS) at NASAAmes Research Center. DC is a Ramon-Cajal Researcher and issupported by the Ministerio de Ciencia, Innovación y Universidades(MICIU/FEDER) under research grant PGC2018-094975-C21. Par-tial support for AD comes from DIP STE1869/2-1 GE625/17-1 andISF 861/20. BW and RD carried out this research under the aus-pices of the Science Internship Program (SIP) at the University ofCalifornia Santa Cruz, which also provided partial funding to CS.Technical help was provided by Cameron Hummels, Britton Smith,Nathan Goldbaum, Matt Turk, and the rest of theytcommunity. Wealso benefitted from helpful discussions with Joe Burchett, SandraFaber, Yakov Faerman, Max Gronke, David Koo, Daisuke Nagai,S. Peng Oh, J. Xavier Prochaska, Rahul Sharma, and Sally Zhu.Finally, we thank the comments of an anonymous referee whichimproved several key points of the paper