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Peer-reviewedCC BY 4.0The Astrophysical Journal

Cosmological Constraints from Full-scale Clustering and Galaxy–Galaxy Lensing with DESI DR1

  • J. U. Lange1
  • A. Wells2
  • A. Hearin3
  • G. Beltz-Mohrmann4
  • A. Leauthaud5
  • S. Heydenreich5
  • C. Blake6
  • J. Aguilar7
  • S. Ahlen8
  • A. Anand7
  • D. Bianchi9,10
  • D. Brooks11
67 more authors
  • F. J. Castander12,13
  • T. Claybaugh7
  • S. Cole14
  • A. Cuceu7
  • K. S. Dawson15
  • A. de la Macorra16
  • Biprateep Dey17,18
  • P. Doel11
  • A. Elliott19
  • N. Emas6
  • S. Ferraro7,5
  • A. Font-Ribera20,21
  • J. E. Forero-Romero22
  • C. Garcia-Quintero23,24
  • E. Gaztañaga12,13,25
  • Satya Gontcho A Gontcho26
  • G. Gutierrez27
  • J. Guy7
  • K. Honscheid19
  • D. Huterer2
  • M. Ishak28
  • S. Joudaki29
  • R. Joyce30
  • R. Kehoe31
  • D. Kirkby5
  • T. Kisner7
  • A. Kremin7
  • A. Krolewski32,33
  • O. Lahav11
  • C. Lamman19
  • M. Landriau7
  • L. Le Guillou34
  • M. E. Levi7
  • M. Manera21,35
  • P. Martini19
  • A. Meisner19,30
  • R. Miquel20,21
  • J. Moustakas36
  • E. Mueller37
  • S. Nadathur25
  • J. A. Newman18
  • G. Niz38,39
  • N. Palanque-Delabrouille7,40
  • W. J. Percival32,33
  • C. Poppett7,5
  • A. Porredon19,29
  • F. Prada
  • I. Pérez-Ràfols

60 listed; 79 in total.

40 affiliations
  1. 1American University
  2. 2University of Michigan
  3. 3High-Energy Physics Division
  4. 4Smith College
  5. 5University of California
  6. 6Swinburne University of Technology
  7. 7Lawrence Berkeley National Laboratory
  8. 8Boston University
  9. 9Università degli Studi di Milano
  10. 10INAF-Osservatorio Astronomico di Brera
  11. 11University College London
  12. 12Institut d’Estudis Espacials de Catalunya (IEEC)
  13. 13Institute of Space Sciences
  14. 14Durham University
  15. 15The University of Utah
  16. 16Universidad Nacional Autónoma de México
  17. 17University of Toronto
  18. 18University of Pittsburgh
  19. 19The Ohio State University
  20. 20Institució Catalana de Recerca i Estudis Avançats
  21. 21Institut de Física d’Altes Energies (IFAE)
  22. 22Universidad de los Andes
  23. 23Center for Astrophysics ∣ Harvard & Smithsonian
  24. 24NASA Einstein Fellow
  25. 25University of Portsmouth
  26. 26University of Virginia
  27. 27Fermi National Accelerator Laboratory
  28. 28The University of Texas at Dallas
  29. 29CIEMAT
  30. 30NSF NOIRLab
  31. 31Southern Methodist University
  32. 32University of Waterloo
  33. 33Perimeter Institute for Theoretical Physics
  34. 34Sorbonne Université
  35. 35Universitat Autònoma de Barcelona
  36. 36Siena University
  37. 37University of Sussex
  38. 38Universidad de Guanajuato
  39. 39Instituto Avanzado de Cosmología A. C.
  40. 40Université Paris-Saclay
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Abstract

We present constraints on cosmic structure growth from the analysis of galaxy clustering and galaxy–galaxy lensing with galaxies from the Dark Energy Spectroscopic Instrument (DESI) Data Release 1. Our analysis includes four samples drawn from the Bright Galaxy Survey (BGS) and the luminous red galaxy (LRG) target classes. Projected galaxy clustering measurements from DESI are supplemented with lensing data from the Dark Energy Survey (DES), the Kilo-Degree Survey (KiDS), and the Hyper Suprime-Cam (HSC) survey around the same targets. Our method relies on a simulation-based modeling framework using the AbacusSummit simulations and a complex halo occupation distribution model that incorporates assembly bias. We analyze scales down to 0.4 h ⁻¹ Mpc for clustering and 2.5 h ⁻¹ Mpc for lensing, leading to stringent constraints on S 8 = σ 8 Ω m / 0.3 and Ω m when fixing other cosmological parameters to those preferred by the cosmic microwave background. We find S 8 = 0.79 7 − 0.024 + 0.023 and Ω m = 0.292 ± 0.011 when using lensing measurements from DES and KiDS. Similarly, for HSC, we find S 8 = 0.79 1 − 0.021 + 0.020 and Ω m = 0.300 ± 0.009 when assuming the best-fit photometric redshift offset suggested by the HSC collaboration. Overall, our results are in good agreement with other results in the literature while continuing to highlight the constraining power of nonlinear scales.

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Cite

BibTeXRIS
BibTeX
@article{lange2026cosmological,
  title = {{Cosmological Constraints from Full-scale Clustering and Galaxy–Galaxy Lensing with DESI DR1}},
  author = {J. U. Lange and A. Wells and A. Hearin and G. Beltz-Mohrmann and A. Leauthaud and S. Heydenreich and C. Blake and J. Aguilar and S. Ahlen and A. Anand and D. Bianchi and D. Brooks and F. J. Castander and T. Claybaugh and S. Cole and A. Cuceu and K. S. Dawson and A. de la Macorra and Biprateep Dey and P. Doel and A. Elliott and N. Emas and S. Ferraro and A. Font-Ribera and J. E. Forero-Romero and C. Garcia-Quintero and E. Gaztañaga and Satya Gontcho A Gontcho and G. Gutierrez and J. Guy and K. Honscheid and D. Huterer and M. Ishak and S. Joudaki and R. Joyce and R. Kehoe and D. Kirkby and T. Kisner and A. Kremin and A. Krolewski and O. Lahav and C. Lamman and M. Landriau and L. Le Guillou and M. E. Levi and M. Manera and P. Martini and A. Meisner and R. Miquel and J. Moustakas and E. Mueller and S. Nadathur and J. A. Newman and G. Niz and N. Palanque-Delabrouille and W. J. Percival and C. Poppett and A. Porredon and F. Prada and I. Pérez-Ràfols},
  journal = {The Astrophysical Journal},
  year = {2026},
  month = oct,
  doi = {10.3847/1538-4357/aeaa3b},
  url = {https://iopscience.iop.org/article/10.3847/1538-4357/aeaa3b},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Cosmological Constraints from Full-scale Clustering and Galaxy–Galaxy Lensing with DESI DR1
AU  - J. U. Lange
AU  - A. Wells
AU  - A. Hearin
AU  - G. Beltz-Mohrmann
AU  - A. Leauthaud
AU  - S. Heydenreich
AU  - C. Blake
AU  - J. Aguilar
AU  - S. Ahlen
AU  - A. Anand
AU  - D. Bianchi
AU  - D. Brooks
AU  - F. J. Castander
AU  - T. Claybaugh
AU  - S. Cole
AU  - A. Cuceu
AU  - K. S. Dawson
AU  - A. de la Macorra
AU  - Biprateep Dey
AU  - P. Doel
AU  - A. Elliott
AU  - N. Emas
AU  - S. Ferraro
AU  - A. Font-Ribera
AU  - J. E. Forero-Romero
AU  - C. Garcia-Quintero
AU  - E. Gaztañaga
AU  - Satya Gontcho A Gontcho
AU  - G. Gutierrez
AU  - J. Guy
AU  - K. Honscheid
AU  - D. Huterer
AU  - M. Ishak
AU  - S. Joudaki
AU  - R. Joyce
AU  - R. Kehoe
AU  - D. Kirkby
AU  - T. Kisner
AU  - A. Kremin
AU  - A. Krolewski
AU  - O. Lahav
AU  - C. Lamman
AU  - M. Landriau
AU  - L. Le Guillou
AU  - M. E. Levi
AU  - M. Manera
AU  - P. Martini
AU  - A. Meisner
AU  - R. Miquel
AU  - J. Moustakas
AU  - E. Mueller
AU  - S. Nadathur
AU  - J. A. Newman
AU  - G. Niz
AU  - N. Palanque-Delabrouille
AU  - W. J. Percival
AU  - C. Poppett
AU  - A. Porredon
AU  - F. Prada
AU  - I. Pérez-Ràfols
PY  - 2026
DA  - 2026/10/15
JO  - The Astrophysical Journal
DO  - 10.3847/1538-4357/aeaa3b
UR  - https://iopscience.iop.org/article/10.3847/1538-4357/aeaa3b
AB  - We present constraints on cosmic structure growth from the analysis of galaxy clustering and galaxy–galaxy lensing with galaxies from the Dark Energy Spectroscopic Instrument (DESI) Data Release 1. Our analysis includes four samples drawn from the Bright Galaxy Survey (BGS) and the luminous red galaxy (LRG) target classes. Projected galaxy clustering measurements from DESI are supplemented with lensing data from the Dark Energy Survey (DES), the Kilo-Degree Survey (KiDS), and the Hyper Suprime-Cam (HSC) survey around the same targets. Our method relies on a simulation-based modeling framework using the AbacusSummit simulations and a complex halo occupation distribution model that incorporates assembly bias. We analyze scales down to 0.4 h ⁻¹ Mpc for clustering and 2.5 h ⁻¹ Mpc for lensing, leading to stringent constraints on S 8 = σ 8 Ω m / 0.3 and Ω m when fixing other cosmological parameters to those preferred by the cosmic microwave background. We find S 8 = 0.79 7 − 0.024 + 0.023 and Ω m = 0.292 ± 0.011 when using lensing measurements from DES and KiDS. Similarly, for HSC, we find S 8 = 0.79 1 − 0.021 + 0.020 and Ω m = 0.300 ± 0.009 when assuming the best-fit photometric redshift offset suggested by the HSC collaboration. Overall, our results are in good agreement with other results in the literature while continuing to highlight the constraining power of nonlinear scales.
SN  - 0004-637X
SN  - 1538-4357
ER  -