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dc.contributor.authorJones, DO
dc.contributor.authorMandel, KS
dc.contributor.authorKirshner, RP
dc.contributor.authorThorp, S
dc.contributor.authorChallis, PM
dc.contributor.authorAvelino, A
dc.contributor.authorBrout, D
dc.contributor.authorBurns, C
dc.contributor.authorFoley, RJ
dc.contributor.authorPan, YC
dc.contributor.authorScolnic, DM
dc.contributor.authorSiebert, MR
dc.contributor.authorChornock, R
dc.contributor.authorFreedman, WL
dc.contributor.authorFriedman, A
dc.contributor.authorFrieman, J
dc.contributor.authorGalbany, L
dc.contributor.authorHsiao, E
dc.contributor.authorKelsey, L
dc.contributor.authorMarion, GH
dc.contributor.authorNichol, RC
dc.contributor.authorNugent, PE
dc.contributor.authorPhillips, MM
dc.contributor.authorRest, A
dc.contributor.authorRiess, AG
dc.contributor.authorSako, M
dc.contributor.authorSmith, M
dc.contributor.authorWiseman, P
dc.contributor.authorWood-Vasey, WM
dc.description.abstract<jats:title>Abstract</jats:title> <jats:p>Type Ia supernovae (SNe Ia) are more precise standardizable candles when measured in the near-infrared (NIR) than in the optical. With this motivation, from 2012 to 2017 we embarked on the RAISIN program with the Hubble Space Telescope (HST) to obtain rest-frame NIR light curves for a cosmologically distant sample of 37 SNe Ia (0.2 ≲ <jats:italic>z</jats:italic> ≲ 0.6) discovered by Pan-STARRS and the Dark Energy Survey. By comparing higher-<jats:italic>z</jats:italic> HST data with 42 SNe Ia at <jats:italic>z</jats:italic> &lt; 0.1 observed in the NIR by the Carnegie Supernova Project, we construct a Hubble diagram from NIR observations (with only time of maximum light and some selection cuts from optical photometry) to pursue a unique avenue to constrain the dark energy equation-of-state parameter, <jats:italic>w</jats:italic>. We analyze the dependence of the full set of Hubble residuals on the SN Ia host galaxy mass and find Hubble residual steps of size ∼0.06-0.1 mag with 1.5<jats:italic>σ</jats:italic>−2.5<jats:italic>σ</jats:italic> significance depending on the method and step location used. Combining our NIR sample with cosmic microwave background constraints, we find 1 + <jats:italic>w</jats:italic> = −0.17 ± 0.12 (statistical + systematic errors). The largest systematic errors are the redshift-dependent SN selection biases and the properties of the NIR mass step. We also use these data to measure <jats:italic>H</jats:italic> <jats:sub>0</jats:sub> = 75.9 ± 2.2 km s<jats:sup>−1</jats:sup> Mpc<jats:sup>−1</jats:sup> from stars with geometric distance calibration in the hosts of eight SNe Ia observed in the NIR versus <jats:italic>H</jats:italic> <jats:sub>0</jats:sub> = 71.2 ± 3.8 km s<jats:sup>−1</jats:sup> Mpc<jats:sup>−1</jats:sup> using an inverse distance ladder approach tied to Planck. Using optical data, we find 1 + <jats:italic>w</jats:italic> = −0.10 ± 0.09, and with optical and NIR data combined, we find 1 + <jats:italic>w</jats:italic> = −0.06 ± 0.07; these shifts of up to ∼0.11 in <jats:italic>w</jats:italic> could point to inconsistency in the optical versus NIR SN models. There will be many opportunities to improve this NIR measurement and better understand systematic uncertainties through larger low-<jats:italic>z</jats:italic> samples, new light-curve models, calibration improvements, and eventually by building high-<jats:italic>z</jats:italic> samples from the Roman Space Telescope.</jats:p>
dc.publisherAmerican Astronomical Society
dc.rightsAttribution 4.0 International
dc.titleCosmological Results from the RAISIN Survey: Using Type Ia Supernovae in the Near Infrared as a Novel Path to Measure the Dark Energy Equation of State
dc.publisher.departmentDepartment of Pure Mathematics And Mathematical Statistics
prism.publicationNameAstrophysical Journal
dc.contributor.orcidJones, DO [0000-0002-6230-0151]
dc.contributor.orcidMandel, KS [0000-0001-9846-4417]
dc.contributor.orcidKirshner, RP [0000-0002-1966-3942]
dc.contributor.orcidAvelino, A [0000-0002-2938-7822]
dc.contributor.orcidBrout, D [0000-0001-5201-8374]
dc.contributor.orcidBurns, C [0000-0003-4625-6629]
dc.contributor.orcidFoley, RJ [0000-0002-2445-5275]
dc.contributor.orcidPan, YC [0000-0001-8415-6720]
dc.contributor.orcidSiebert, MR [0000-0003-2445-3891]
dc.contributor.orcidChornock, R [0000-0002-7706-5668]
dc.contributor.orcidFreedman, WL [0000-0003-3431-9135]
dc.contributor.orcidFriedman, A [0000-0003-1334-039X]
dc.contributor.orcidGalbany, L [0000-0002-1296-6887]
dc.contributor.orcidHsiao, E [0000-0003-1039-2928]
dc.contributor.orcidMarion, GH [0000-0002-2966-3508]
dc.contributor.orcidNugent, PE [0000-0002-3389-0586]
dc.contributor.orcidPhillips, MM [0000-0003-2734-0796]
dc.contributor.orcidRest, A [0000-0002-4410-5387]
dc.contributor.orcidRiess, AG [0000-0002-6124-1196]
dc.contributor.orcidSako, M [0000-0003-2764-7093]
dc.contributor.orcidSmith, M [0000-0002-3321-1432]
dc.contributor.orcidWood-Vasey, WM [0000-0001-7113-1233]
rioxxterms.typeJournal Article/Review
pubs.funder-project-idSTFC (2118607)
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) ERC (101002652)
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (873089)
pubs.licence-display-nameApollo Repository Deposit Licence Agreement

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Attribution 4.0 International
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