DOUBLE SOURCE LENSING PROBING HIGH REDSHIFT COSMOLOGY

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dc.contributor.authorSharma, Divij
dc.contributor.authorLinder, Eric V.
dc.date.accessioned2023-03-29T05:08:34Z
dc.date.available2023-03-29T05:08:34Z
dc.date.issued2022
dc.description.abstractDouble source lensing, with two sources lensed by the same foreground galaxy, involves the distance between each source and the lens and hence is a probe of the universe away from the observer. The double source distance ratio also reduces sensitivity to the lens model and has good complementarity with standard distance probes. We show that using this technique at high redshifts z > 1, to be enabled by data from the Euclid satellite and other surveys, can give insights on dark energy, both in terms of w0–wa and redshift binned density. We find a dark energy figure of merit of 245 from combination of 256 double source systems with moderate quality cosmic microwave background and supernova data. Using instead five redshift bins between z = 1.1–5, we could detect the dark energy density out to z ≈ 5, or make measurements ranging between 31σ and 2.5σ of its values in the bins.en_US
dc.identifier.citationSharma, D., & Linder, E. V. (2022). Double source lensing probing high redshift cosmology. Journal of Cosmology and Astroparticle Physics, 2022(07), 033. https://doi.org/10.1088/1475-7516/2022/07/033en_US
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/6993
dc.language.isoenen_US
dc.publisherJournal of Cosmology and Astroparticle Physicsen_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectType of access: Open Accessen_US
dc.subjectgravitational lensingen_US
dc.subjectdark energy theoryen_US
dc.subjectdark energy experimentsen_US
dc.titleDOUBLE SOURCE LENSING PROBING HIGH REDSHIFT COSMOLOGYen_US
dc.typeArticleen_US
workflow.import.sourcescience

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