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THE ABSENCE OF AN ENVIRONMENTAL DEPENDENCE IN THE MASS-METALLICITY RELATION AT z=2

Kacprzak, Glenn; Yuan, TianTian; Nanayakkara, Themiya; Kobayashi, Chiaki; Tran, Kim-Vy; Kewley, Lisa; Glazebrook, Karl; Spitler, Lee R.; Taylor, Philip; Cowley, Michael; Labbe, Ivo; Straatman, Caroline; Tomczak, Adam

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We investigate the environmental dependence of the mass–metallicity relation at z = 2 with MOSFIRE/Keck as part of the ZFIRE survey. Here, we present the chemical abundance of a Virgo-like progenitor at z = 2.095 that has an established red sequence. We identified 43 cluster (ázñ=  2.095 0.004) and 74 field galaxies (ázñ=  2.195 0.083) for which we can measure metallicities. For the first time, we show that there is no discernible difference between the mass–metallicity relation of field...[Show more]

dc.contributor.authorKacprzak, Glenn
dc.contributor.authorYuan, TianTian
dc.contributor.authorNanayakkara, Themiya
dc.contributor.authorKobayashi, Chiaki
dc.contributor.authorTran, Kim-Vy
dc.contributor.authorKewley, Lisa
dc.contributor.authorGlazebrook, Karl
dc.contributor.authorSpitler, Lee R.
dc.contributor.authorTaylor, Philip
dc.contributor.authorCowley, Michael
dc.contributor.authorLabbe, Ivo
dc.contributor.authorStraatman, Caroline
dc.contributor.authorTomczak, Adam
dc.date.accessioned2018-11-29T22:55:53Z
dc.date.available2018-11-29T22:55:53Z
dc.identifier.issn1745-3925
dc.identifier.urihttp://hdl.handle.net/1885/153320
dc.description.abstractWe investigate the environmental dependence of the mass–metallicity relation at z = 2 with MOSFIRE/Keck as part of the ZFIRE survey. Here, we present the chemical abundance of a Virgo-like progenitor at z = 2.095 that has an established red sequence. We identified 43 cluster (ázñ=  2.095 0.004) and 74 field galaxies (ázñ=  2.195 0.083) for which we can measure metallicities. For the first time, we show that there is no discernible difference between the mass–metallicity relation of field and cluster galaxies to within 0.02 dex. Both our field and cluster galaxy mass–metallicity relations are consistent with recent field galaxy studies at z ~ 2. We present hydrodynamical simulations for which we derive mass–metallicity relations for field and cluster galaxies. We find at most a 0.1 dex offset toward more metal-rich simulated cluster galaxies. Our results from both simulations and observations suggest that environmental effects, if present, are small and are secondary to the ongoing inflow and outflow processes that are governed by galaxy halo mass. Key words: cosmology: observations – galaxies: abundances – galaxies: evolution – galaxies: fundamental
dc.format.mimetypeapplication/pdf
dc.publisherOxford University Press
dc.sourceMonthly Notices of the Royal Astronomical Society: Letters
dc.subjectKeywords: Cosmology: Observations; Galaxies: Abundances; Galaxies: Evolution; Galaxies: Fundamental parameters; Galaxies: High-redshift
dc.titleTHE ABSENCE OF AN ENVIRONMENTAL DEPENDENCE IN THE MASS-METALLICITY RELATION AT z=2
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume802
dc.date.issued2015
local.identifier.absfor020102 - Astronomical and Space Instrumentation
local.identifier.ariespublicationu5058514xPUB20
local.type.statusPublished Version
local.contributor.affiliationKacprzak, Glenn, Swinburne University of Technology
local.contributor.affiliationYuan, TianTian, College of Science, ANU
local.contributor.affiliationNanayakkara, Themiya, Swinburne University
local.contributor.affiliationKobayashi, Chiaki, College of Science, ANU
local.contributor.affiliationTran, Kim-Vy, Texas A&M University
local.contributor.affiliationKewley, Lisa, College of Science, ANU
local.contributor.affiliationGlazebrook, Karl, Swinburne University of Technology
local.contributor.affiliationSpitler, Lee R., Macquarie University
local.contributor.affiliationTaylor, Philip, College of Science, ANU
local.contributor.affiliationCowley, Michael, Macquarie University
local.contributor.affiliationLabbe, Ivo, Leiden University
local.contributor.affiliationStraatman, Caroline, Leiden University
local.contributor.affiliationTomczak, Adam, Texas A&M University
local.bibliographicCitation.issue2
local.identifier.doi10.1088/2041-8205/802/2/L26
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2018-11-29T08:08:48Z
local.identifier.scopusID2-s2.0-84926451437
local.identifier.thomsonID000352138300013
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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