Strong lensing considerations for the LSST observing strategy

Strong gravitational lensing enables a wide range of science: probing cosmography; testing dark matter models; understanding galaxy evolution; and magnifying the faint, small and distant Universe. However to date exploiting strong lensing as a tool for these numerous cosmological and astrophysical a...

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Main Authors: Verma, A, Collett, T, Smith, G, on behalf of the Strong Lensing Science Collaboration, in collaboration with the DESC Strong Lensing Science Working Group
Format: Working paper
Published: 2018
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author Verma, A
Collett, T
Smith, G
on behalf of the Strong Lensing Science Collaboration
in collaboration with the DESC Strong Lensing Science Working Group
author_facet Verma, A
Collett, T
Smith, G
on behalf of the Strong Lensing Science Collaboration
in collaboration with the DESC Strong Lensing Science Working Group
author_sort Verma, A
collection OXFORD
description Strong gravitational lensing enables a wide range of science: probing cosmography; testing dark matter models; understanding galaxy evolution; and magnifying the faint, small and distant Universe. However to date exploiting strong lensing as a tool for these numerous cosmological and astrophysical applications has been severely hampered by limited sample sized. LSST will drive studies of strongly lensed galaxies, galaxy groups and galaxy clusters into the statistical age. Time variable lensing events, e.g. measuring cosmological time delays from strongly lensed supernovae and quasars, place the strongest constraints on LSST's observing strategy and have been considered in the DESC observing strategy white papers. Here we focus on aspects of `static' lens discovery that will be affected by the observing strategy. In summary, we advocate (1) ensuring comparable (sub-arcsecond) seeing in the g-band as in r and i to facilitate discovery of gravitational lenses, and (2) initially surveying the entire observable extragalactic sky as rapidly as possible to enable early science spanning a broad range of static and transient interests.
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spelling oxford-uuid:363cecdb-4544-4595-87fd-e109db96b0eb2022-03-26T13:36:38ZStrong lensing considerations for the LSST observing strategyWorking paperhttp://purl.org/coar/resource_type/c_8042uuid:363cecdb-4544-4595-87fd-e109db96b0ebSymplectic Elements at Oxford2018Verma, ACollett, TSmith, Gon behalf of the Strong Lensing Science Collaborationin collaboration with the DESC Strong Lensing Science Working GroupStrong gravitational lensing enables a wide range of science: probing cosmography; testing dark matter models; understanding galaxy evolution; and magnifying the faint, small and distant Universe. However to date exploiting strong lensing as a tool for these numerous cosmological and astrophysical applications has been severely hampered by limited sample sized. LSST will drive studies of strongly lensed galaxies, galaxy groups and galaxy clusters into the statistical age. Time variable lensing events, e.g. measuring cosmological time delays from strongly lensed supernovae and quasars, place the strongest constraints on LSST's observing strategy and have been considered in the DESC observing strategy white papers. Here we focus on aspects of `static' lens discovery that will be affected by the observing strategy. In summary, we advocate (1) ensuring comparable (sub-arcsecond) seeing in the g-band as in r and i to facilitate discovery of gravitational lenses, and (2) initially surveying the entire observable extragalactic sky as rapidly as possible to enable early science spanning a broad range of static and transient interests.
spellingShingle Verma, A
Collett, T
Smith, G
on behalf of the Strong Lensing Science Collaboration
in collaboration with the DESC Strong Lensing Science Working Group
Strong lensing considerations for the LSST observing strategy
title Strong lensing considerations for the LSST observing strategy
title_full Strong lensing considerations for the LSST observing strategy
title_fullStr Strong lensing considerations for the LSST observing strategy
title_full_unstemmed Strong lensing considerations for the LSST observing strategy
title_short Strong lensing considerations for the LSST observing strategy
title_sort strong lensing considerations for the lsst observing strategy
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