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dc.contributor.authorXu, J.
dc.contributor.authorEifler, T.
dc.contributor.authorHuff, E.
dc.contributor.authorPranjal, R.S.
dc.contributor.authorHuang, H.-J.
dc.contributor.authorEverett, S.
dc.contributor.authorKrause, E.
dc.date.accessioned2024-08-12T01:35:19Z
dc.date.available2024-08-12T01:35:19Z
dc.date.issued2022-12-16
dc.identifier.citationJiachuan Xu, Tim Eifler, Eric Huff, R S Pranjal, Hung-Jin Huang, Spencer Everett, Elisabeth Krause, Kinematic lensing with the Roman Space Telescope, Monthly Notices of the Royal Astronomical Society, Volume 519, Issue 2, February 2023, Pages 2535–2551, https://doi.org/10.1093/mnras/stac3685
dc.identifier.issn0035-8711
dc.identifier.doi10.1093/mnras/stac3685
dc.identifier.urihttp://hdl.handle.net/10150/674086
dc.description.abstractKinematic lensing (KL) is a new cosmological measurement technique that combines traditional weak lensing (WL) shape measurements of disc galaxies with their kinematic information. Using the Tully–Fisher relation, KL breaks the degeneracy between intrinsic and observed ellipticity and significantly reduces the impact of multiple systematics that are present in traditional WL. We explore the performance of KL given the instrument capabilities of the Roman Space Telescope, assuming overlap of the High Latitude Imaging Survey (HLIS) and the High Latitude Spectroscopy Survey (HLSS) over 2000 deg2. Our KL suitable galaxy sample has a number density of ngal = 4 arcmin−1 with an estimated shape noise level of σ∊ = 0.035. We quantify the cosmological constraining power on Ωm–S8 and wp–wa by running simulated likelihood analyses that account for redshift and shear calibration uncertainties, intrinsic alignment, and baryonic feedback. Compared to a traditional WL survey, we find that KL significantly improves the constraining power on Ωm–S8 (FoMKL = 1.70FoMWL) and wp–wa (FoMKL = 3.65FoMWL). We also explore a ‘narrow tomography KL survey’ using 30 instead of the default 10 tomographic bins; however, we find no meaningful enhancement to the figure of merit even when assuming a significant time dependence in our fiducial dark energy input scenarios. © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.language.isoen
dc.publisherOxford University Press
dc.rights© 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectcosmological parameters
dc.subjectdark energy
dc.subjectgravitational lensing: weak
dc.subjectmethods: numerical
dc.titleKinematic lensing with the Roman Space Telescope
dc.typeArticle
dc.typetext
dc.contributor.departmentDepartment of Astronomy/Steward Observatory, University of Arizona
dc.contributor.departmentDepartment of Physics, University of Arizona
dc.identifier.journalMonthly Notices of the Royal Astronomical Society
dc.description.noteImmediate access
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal Published Version
dc.source.journaltitleMonthly Notices of the Royal Astronomical Society
refterms.dateFOA2024-08-12T01:35:19Z


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