Full calibration of the tomographic redshift distribution from the HSC PDR3 Shape Catalog with DESI

[2511.18133] Full calibration of the tomographic redshift distribution from the HSC PDR3 Shape Catalog with DESI Skip to main content Search Submit Donate Log in Astrophysics > Cosmology and Nongalactic Astrophysics arXiv:2511.18133 (astro-ph) [Submitted on 22 Nov 2025 ( v1 ), last revised 25 Aug 2026 (this version, v3)] Title: Full calibration of the tomographic redshift distribution from the HSC PDR3 Shape Catalog with DESI Authors: J. Choppin de Janvry , S. Gontcho A Gontcho , U. Seljak , A. Baleato Lizancos , E. Chaussidon , W. d'Assignies , J. DeRose , S. Heydenreich , E. Paillas , D. Valcin , T. Zhang , J. Aguilar , S. Ahlen , D. Bianchi , D. Brooks , F.J. Castander , T. Claybaugh , A. Cuceu , A. de la Macorra , P. Doel , S. Ferraro , A. Font-Ribera , J.E. Forero-Romero , E. Gaztañaga , G. Gutierrez , H.K. Herrera-Alcantar , K. Honscheid , M. Ishak , R. Joyce , S. Juneau , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , O. Lahav , C. Lamman , M. Landriau , L. Le Guillou , M. Manera , A. Meisner , R. Miquel , S. Nadathur , N. Palanque-Delabrouille , W.J. Percival , C. Poppett , F. Prada , I. Pérez-Ràfols , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , J. Silber , D. Sprayberry , G. Tarlé , B.A. Weaver , R. Zhou View PDF HTML (experimental) Abstract: The calibration of tomographic redshift distributions is essential for cosmological analysis of weak lensing data. In this work, we calibrate all four tomographic bins of the Hyper Suprime Camera (HSC) weak lensing catalog with the Dark Energy Spectroscopic Instrument (DESI) Data Release 1 and 2 using the clustering redshifts technique. We include z > 1.2 redshift sources such as emission line galaxies (ELG) and quasars (QSO) sources in our calibration, which were not available in the previous HSC calibration (Rau et al. 2022), allowing a complete calibration of all the redshift bins. We find the first tomographic bin exhibits a small shift towards low redshifts. The second bin is in good agreement with the photometric calibration, while third and fourth bin exhibit a shift towards higher redshifts. However, these shifts are considerably smaller than the shifts obtained in the HSC Year 3 cosmic shear analyses. We evaluate the impact of galaxy bias and magnification effects from all the samples on the measurements, finding them to be small, and we propose corrections to reduce them further. Specifically, we relax the assumption of linear bias and only assume no redshift evolution of the cross-correlation coefficient, allowing us to leverage smaller clustering scales. We model the redshift distributions with splines and compare our results to previous analyses as well as to other parameterizations found in literature. For the two high-redshift tomographic bins, we find the shifts to higher redshifts with respect to the measurements performed in Rau+2022 to be $\Delta z_3=-0.043^{+0.022}_{-0.020}$ and $\Delta z_4=-0.050^{+0.012}_{-0.012}$. Comments: 42 pages, 11 figures, 5 tables Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO) Cite as: arXiv:2511.18133 [astro-ph.CO] (or arXiv:2511.18133v3 [astro-ph.CO] for this version) https://doi.org/10.48550/arXiv.2511.18133 Focus to learn more arXiv-issued DOI via DataCite Journal reference: JCAP05(2026)073 Related DOI : https://doi.org/10.1088/1475-7516/2026/05/073 Focus to learn more DOI(s) linking to related resources Submission history From: Jean Choppin De Janvry [ view email ] [v1] Sat, 22 Nov 2025 17:32:47 UTC (5,740 KB) [v2] Mon, 30 Mar 2026 15:45:56 UTC (6,133 KB) [v3] Tue, 25 Aug 2026 01:39:19 UTC (6,116 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: astro-ph.CO < prev | next > new | recent | 2025-11 Change to browse by: astro-ph References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar export BibTeX citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. 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