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First Cosmology Results Using Type Ia Supernovae from the Dark Energy Survey: Photometric Pipeline and Light-curve Data Release

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dc.contributor.authorBrout, D
dc.contributor.authorSako, Masao
dc.contributor.authorScolnic, D.
dc.contributor.authorKessler, R
dc.contributor.authorD'Andrea, Chris B
dc.contributor.authorDavis, T M
dc.contributor.authorHinton, Samuel R
dc.contributor.authorKim, Alex G
dc.contributor.authorLasker, J.
dc.contributor.authorMacaulay, E.
dc.contributor.authorMöller, Anais
dc.contributor.authorTucker, Brad
dc.date.accessioned2023-03-20T01:06:58Z
dc.date.available2023-03-20T01:06:58Z
dc.date.issued2019
dc.date.updated2022-01-09T07:18:46Z
dc.description.abstractWe present griz light curves of 251 SNe Ia from the first 3 years of the Dark Energy Survey Supernova Program's (DES-SN) spectroscopically classified sample. The photometric pipeline described in this paper produces the calibrated fluxes and associated uncertainties used in the cosmological parameter analysis by employing a scene modeling approach that simultaneously models a variable transient flux and temporally constant host galaxy. We inject artificial point sources onto DECam images to test the accuracy of our photometric method. Upon comparison of input and measured artificial supernova fluxes, we find that flux biases peak at 3 mmag. We require corrections to our photometric uncertainties as a function of host galaxy surface brightness at the transient location, similar to that seen by the DES Difference Imaging Pipeline used to discover transients. The public release of the light curves can be found at https://des.ncsa.illinois.edu/releases/sn.en_AU
dc.description.sponsorshipD.B. and M.S. were supported by DOE grant DEFOA-0001358 and NSF grant AST-1517742. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Part of this research was conducted by the Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), through project number CE110001020.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0004-637Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/287178
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/6401..."The Published Version can be archived in any website" from SHERPA/RoMEO site (as at 20/03/2023).en_AU
dc.publisherIOP Publishingen_AU
dc.relationhttp://purl.org/au-research/grants/arc/CE110001020en_AU
dc.rights© 2019 IOP Publishingen_AU
dc.sourceThe Astrophysical Journalen_AU
dc.subjectcosmology: observationsen_AU
dc.subjectsupernovae: generalen_AU
dc.subjecttechniques: photometricen_AU
dc.titleFirst Cosmology Results Using Type Ia Supernovae from the Dark Energy Survey: Photometric Pipeline and Light-curve Data Releaseen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue1en_AU
local.bibliographicCitation.lastpage12en_AU
local.bibliographicCitation.startpage1en_AU
local.contributor.affiliationBrout, D, University of Pennsylvaniaen_AU
local.contributor.affiliationSako, Masao, University of Pennsylvaniaen_AU
local.contributor.affiliationScolnic, D., University of Chicagoen_AU
local.contributor.affiliationKessler, R, University of Chicagoen_AU
local.contributor.affiliationD'Andrea, Chris B, University of Pennsylvaniaen_AU
local.contributor.affiliationDavis, T M, University of Queenslanden_AU
local.contributor.affiliationHinton, Samuel R, University of Queenslanden_AU
local.contributor.affiliationKim, Alex G, Lawrence Berkeley National Laboratoryen_AU
local.contributor.affiliationLasker, J., University of Chicagoen_AU
local.contributor.affiliationMacaulay, E., University of Portsmouthen_AU
local.contributor.affiliationMoller, Anais, College of Science, ANUen_AU
local.contributor.affiliationTucker, Brad, College of Science, ANUen_AU
local.contributor.authoruidMoller, Anais, u1018833en_AU
local.contributor.authoruidTucker, Brad, u4362859en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor510103 - Cosmology and extragalactic astronomyen_AU
local.identifier.absfor460503 - Data models, storage and indexingen_AU
local.identifier.absfor461208 - Software testing, verification and validationen_AU
local.identifier.absseo280115 - Expanding knowledge in the information and computing sciencesen_AU
local.identifier.absseo280120 - Expanding knowledge in the physical sciencesen_AU
local.identifier.ariespublicationu3102795xPUB1491en_AU
local.identifier.citationvolume874en_AU
local.identifier.doi10.3847/1538-4357/ab06c1en_AU
local.identifier.scopusID2-s2.0-85064438245
local.publisher.urlhttps://iopscience.iop.org/en_AU
local.type.statusPublished Versionen_AU

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