{
  "abstract": "We perform a joint cosmological analysis using angular power spectra of galaxy clustering, galaxy-shear cross correlation, and cosmic shear (hereafter referred to as photo-3x2-pt) measured from the Hyper Suprime-Cam year-3 (HSC-Y3) weak lensing shape catalog. We employ the pseudo-$C_\\ell$ method to measure these power spectra and use the template deprojection method to mitigate systematics in the galaxy density maps. We perform a standard Bayesian likelihood analysis for cosmological inference based on the measured photo-3x2-pt, including contributions from intrinsic alignments of galaxies, galaxy clustering bias, lensing magnification effect, baryonic feedback effect, and source redshift distribution errors. For a flat cold dark matter model, we find a 68% credible interval of $0.76 \\le S_8 \\le 0.81$. This result is consistent with the HSC-Y3 cosmic shear analyses (Dalal et al. 2023, Li et al. 2023) but is $\\sim 25$% tighter. We also find that the measured B-mode power spectra are consistent with zero. We also perform a performance test using mock catalogs that mimic the HSC-Y3 data to validate our photo-3x2-pt analysis. Through Bayesian parameter inference of mock data, we verify that unbiased estimates can be obtained for the key cosmological and nuisance parameters, including $S_8$, intrinsic alignment model parameters, galaxy clustering bias, and shift parameters of the source redshift distributions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.05530",
  "author_total": 1,
  "authors": [
    {
      "name": "Takashi Hamana"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4hc2dnwar7n52.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.05530",
  "fulltext_url": null,
  "id": "4hc2dnwar7n52",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.05530",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7201848204",
  "pdf_url": "https://arxiv.org/pdf/2608.05530",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4hc2dnwar7n52.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:22Z",
      "native_id": "2608.05530",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.05530"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    }
  ],
  "title": "photo-3x2-pt: Cosmology from cosmic shear and galaxy clustering with a single photometric galaxy catalog",
  "title_text": "photo-3x2-pt: Cosmology from cosmic shear and galaxy clustering with a single photometric galaxy catalog",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:44Z",
  "url": "https://research.draconitic.com/paper/4hc2dnwar7n52",
  "venue": "arXiv",
  "versions": []
}