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Cross-correlation redshift calibration without spectroscopic calibration samples in DES Science Verification Data

Author(s): Davis, C; Rozo, E; Roodman, A; Alarcon, A; Cawthon, R; et al

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dc.contributor.authorDavis, C-
dc.contributor.authorRozo, E-
dc.contributor.authorRoodman, A-
dc.contributor.authorAlarcon, A-
dc.contributor.authorCawthon, R-
dc.contributor.authorGatti, M-
dc.contributor.authorLin, H-
dc.contributor.authorMiquel, R-
dc.contributor.authorRykoff, ES-
dc.contributor.authorTroxel, MA-
dc.contributor.authorVielzeuf, P-
dc.contributor.authorAbbott, TMC-
dc.contributor.authorAbdalla, FB-
dc.contributor.authorAllam, S-
dc.contributor.authorAnnis, J-
dc.contributor.authorBechtol, K-
dc.contributor.authorBenoit-Levy, A-
dc.contributor.authorBertin, E-
dc.contributor.authorBrooks, D-
dc.contributor.authorBuckley-Geer, E-
dc.contributor.authorBurke, DL-
dc.contributor.authorCarnero Rosell, A-
dc.contributor.authorKind, M Carrasco-
dc.contributor.authorCarretero, J-
dc.contributor.authorCastander, FJ-
dc.contributor.authorCrocce, M-
dc.contributor.authorCunha, CE-
dc.contributor.authorD Andrea, CB-
dc.contributor.authorda Costa, LN-
dc.contributor.authorDesai, S-
dc.contributor.authorDiehl, HT-
dc.contributor.authorDoel, P-
dc.contributor.authorDrlica-Wagner, A-
dc.contributor.authorFausti Neto, A-
dc.contributor.authorFlaugher, B-
dc.contributor.authorFosalba, P-
dc.contributor.authorFrieman, J-
dc.contributor.authorGarcia-Bellido, J-
dc.contributor.authorGaztanaga, E-
dc.contributor.authorGerdes, DW-
dc.contributor.authorGiannantonio, T-
dc.contributor.authorGruen, D-
dc.contributor.authorGruendl, RA-
dc.contributor.authorGutierrez, G-
dc.contributor.authorHonscheid, K-
dc.contributor.authorJain, B-
dc.contributor.authorJames, DJ-
dc.contributor.authorJeltema, T-
dc.contributor.authorKrause, E-
dc.contributor.authorKuehn, K-
dc.contributor.authorKuhlmann, S-
dc.contributor.authorKuropatkin, N-
dc.contributor.authorLahav, O-
dc.contributor.authorLi, TS-
dc.contributor.authorLima, M-
dc.contributor.authorMarch, M-
dc.contributor.authorMarshall, JL-
dc.contributor.authorMartini, P-
dc.contributor.authorMelchior, Peter M-
dc.contributor.authorOgando, RLC-
dc.contributor.authorPlazas, AA-
dc.contributor.authorRomer, AK-
dc.contributor.authorSanchez, E-
dc.contributor.authorScarpine, V-
dc.contributor.authorSchindler, R-
dc.contributor.authorSchubnell, M-
dc.contributor.authorSevilla-Noarbe, I-
dc.contributor.authorSmith, M-
dc.contributor.authorSoares-Santos, M-
dc.contributor.authorSobreira, F-
dc.contributor.authorSuchyta, E-
dc.contributor.authorSwanson, MEC-
dc.contributor.authorTarle, G-
dc.contributor.authorThomas, D-
dc.contributor.authorVikram, V-
dc.contributor.authorWalker, AR-
dc.contributor.authorWechsler, H-
dc.contributor.authorCollaboration, DES-
dc.date.accessioned2022-01-25T15:01:38Z-
dc.date.available2022-01-25T15:01:38Z-
dc.date.issued2018-06en_US
dc.identifier.citationDavis, C, Rozo, E, Roodman, A, Alarcon, A, Cawthon, R, Gatti, M, Lin, H, Miquel, R, Rykoff, ES, Troxel, MA, Vielzeuf, P, Abbott, TMC, Abdalla, FB, Allam, S, Annis, J, Bechtol, K, Benoit-Levy, A, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, DL, Carnero Rosell, A, Kind, M Carrasco, Carretero, J, Castander, FJ, Crocce, M, Cunha, CE, D Andrea, CB, da Costa, LN, Desai, S, Diehl, HT, Doel, P, Drlica-Wagner, A, Fausti Neto, A, Flaugher, B, Fosalba, P, Frieman, J, Garcia-Bellido, J, Gaztanaga, E, Gerdes, DW, Giannantonio, T, Gruen, D, Gruendl, RA, Gutierrez, G, Honscheid, K, Jain, B, James, DJ, Jeltema, T, Krause, E, Kuehn, K, Kuhlmann, S, Kuropatkin, N, Lahav, O, Li, TS, Lima, M, March, M, Marshall, JL, Martini, P, Melchior, P, Ogando, RLC, Plazas, AA, Romer, AK, Sanchez, E, Scarpine, V, Schindler, R, Schubnell, M, Sevilla-Noarbe, I, Smith, M, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, MEC, Tarle, G, Thomas, D, Vikram, V, Walker, AR, Wechsler, H, Collaboration, DES. (2018). Cross-correlation redshift calibration without spectroscopic calibration samples in DES Science Verification Data. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 477 (2183 - 2195. doi:10.1093/mnras/sty787en_US
dc.identifier.issn0035-8711-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr12v2c921-
dc.description.abstractGalaxy cross-correlations with high-fidelity redshift samples hold the potential to precisely calibrate systematic photometric redshift uncertainties arising from the unavailability of complete and representative training and validation samples of galaxies. However, application of this technique in the Dark Energy Survey (DES) is hampered by the relatively low number density, small area, and modest redshift overlap between photometric and spectroscopic samples. We propose instead using photometric catalogues with reliable photometric redshifts for photo-z calibration via cross-correlations. We verify the viability of our proposal using redMaPPer clusters from the Sloan Digital Sky Survey (SDSS) to successfully recover the redshift distribution of SDSS spectroscopic galaxies. We demonstrate how to combine photo-z with cross-correlation data to calibrate photometric redshift biases while marginalizing over possible clustering bias evolution in either the calibration or unknown photometric samples. We apply our method to DES Science Verification (DES SV) data in order to constrain the photometric redshift distribution of a galaxy sample selected for weak lensing studies, constraining the mean of the tomographic redshift distributions to a statistical uncertainty of Delta z similar to +/- 0.01. We forecast that our proposal can, in principle, control photometric redshift uncertainties in DES weak lensing experiments at a level near the intrinsic statistical noise of the experiment over the range of redshifts where redMaPPer clusters are available. Our results provide strong motivation to launch a programme to fully characterize the systematic errors from bias evolution and photo-z shapes in our calibration procedure.en_US
dc.format.extent2196 - 2208en_US
dc.language.isoen_USen_US
dc.relationhttps://ui.adsabs.harvard.edu/abs/2018MNRAS.477.2196D/abstracten_US
dc.relation.ispartofMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETYen_US
dc.rightsFinal published version. Article is made available in OAR by the publisher's permission or policy.en_US
dc.titleCross-correlation redshift calibration without spectroscopic calibration samples in DES Science Verification Dataen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1093/mnras/sty787-
dc.date.eissued2018-03-26en_US
dc.identifier.eissn1365-2966-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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