Dark Energy Survey Year 3 results: galaxy–halo connection from galaxy–galaxy lensing

Journal Article · 11 November 2021 · Monthly Notices of the Royal Astronomical Society

DOI: https://doi.org/10.1093/mnras/stab3155 · OSTI ID:1833473

Zacharegkas, G. ; Chang, C. ; Prat, J. ; Pandey, S.; Ferrero, I.; Blazek, J.; Jain, B.; Crocce, M.; DeRose, J.; Palmese, A.; Seitz, S.; Sheldon, E.; Hartley, W. G.; Wechsler, R. H.; Dodelson, S.; Fosalba, P.; Krause, E.; Park, Y.; Sánchez, C.; Alarcon, A. ; Amon, A.; Bechtol, K.; Becker, M. R.; Bernstein, G. M.; Campos, A.; Carnero Rosell, A.; Carrasco Kind, M.; Cawthon, R.; Chen, R.; Choi, A.; Cordero, J.; Davis, C.; Diehl, H. T.; Doux, C.; Drlica-Wagner, A.; Eckert, K.; Elvin-Poole, J.; Everett, S.; Ferté, A.; Gatti, M.; Giannini, G.; Gruen, D.; Gruendl, R. A.; Harrison, I.; Herner, K.; Huff, E. M.; Jarvis, M.; Kuropatkin, N.; Leget, P-F; MacCrann, N.; McCullough, J.; Myles, J.; Navarro-Alsina, A.; Porredon, A.; Raveri, M.; Rollins, R. P.; Roodman, A.; Ross, A. J.; Rykoff, E. S.; Secco, L. F.; Sevilla-Noarbe, I.; Shin, T.; Troxel, M. A.; Tutusaus, I.; Varga, T. N.; Yanny, B.; Yin, B.; Zhang, Y.; Zuntz, J.; Abbott, T. M. C.; Aguena, M.; Allam, S.; Andrade-Oliveira, F.; Annis, J.; Bacon, D.; Bertin, E.; Brooks, D.; Burke, D. L.; Carretero, J.; Castander, F. J.; Costanzi, M.; da Costa, L. N.; Pereira, M. E. S.; Desai, S.; Dietrich, J. P.; Doel, P.; Evrard, A. E.; Flaugher, B.; Frieman, J.; García-Bellido, J.; Gaztanaga, E.; Gschwend, J.; Gutierrez, G.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; Hoyle, B.; James, D. J.; Kuehn, K.; Lima, M.; Maia, M. A. G.; Marshall, J. L.; Melchior, P.; Menanteau, F.; Miquel, R.; Muir, J.; Ogando, R. L. C.; Paz-Chinchón, F.; Pieres, A.; Sanchez, E.; Serrano, S.; Smith, M.; Suchyta, E.; Tarle, G.; Thomas, D.; To, C.; Wilkinson, R. D.; (DES Collaboration),

ABSTRACT Galaxy–galaxy lensing is a powerful probe of the connection between galaxies and their host dark matter haloes, which is important both for galaxy evolution and cosmology. We extend the measurement and modelling of the galaxy–galaxy lensing signal in the recent Dark Energy Survey Year 3 cosmology analysis to the highly non-linear scales (∼100 kpc). This extension enables us to study the galaxy–halo connection via a Halo Occupation Distribution (HOD) framework for the two lens samples used in the cosmology analysis: a luminous red galaxy sample (redmagic) and a magnitude-limited galaxy sample (maglim). We find that redmagic (maglim) galaxies typically live in dark matter haloes of mass log10(Mh/M⊙) ≈ 13.7 which is roughly constant over redshift (13.3−13.5 depending on redshift). We constrain these masses to $${\sim}15{{\ \rm per\ cent}}$$, approximately 1.5 times improvement over the previous work. We also constrain the linear galaxy bias more than five times better than what is inferred by the cosmological scales only. We find the satellite fraction for redmagic (maglim) to be ∼0.1−0.2 (0.1−0.3) with no clear trend in redshift. Our constraints on these halo properties are broadly consistent with other available estimates from previous work, large-scale constraints, and simulations. The framework built in this paper will be used for future HOD studies with other galaxy samples and extensions for cosmological analyses.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States); Arizona U., Astron. Dept. - Steward Observ.; Barcelona, IEEC; Barcelona, IFAE; Brookhaven National Laboratory (BNL), Upton, NY (United States); Caltech, JPL; Cambridge U., DAMTP; Cambridge U., Inst. of Astron.; Campinas State U.; Carnegie Mellon U.; Cerro-Tololo InterAmerican Obs.; Chicago U., Astron. Astrophys. Ctr.; Chicago U., KICP; Duke U.; Edinburgh U., Inst. Astron.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Garching, Max Planck Inst., MPE; Harvard-Smithsonian Ctr. Astrophys.; IAC, La Laguna; ICE, Bellaterra; ICREA, Barcelona; ISDC, Versoix; Illinois U., Urbana, Astron. Dept.; Indian Inst. Tech., Hyderabad; Inst. Theor. Astrophys., Oslo; Jodrell Bank; LASTRO Observ.; LIneA, Rio de Janeiro; Laguna U., Tenerife; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lowell Observ.; Macquarie U.; Madrid, CIEMAT; Madrid, IFT; Michigan U.; Munich U.; NCSA, Urbana; Northeastern U.; Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Ohio State U.; Ohio State U., CCAPP; Oxford U.; Paris, Inst. Astrophys.; Pennsylvania U.; Portsmouth U., ICG; Princeton U., Astrophys. Sci. Dept.; Queensland U.; Rio de Janeiro Observ.; SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Sao Paulo U.; Sao Paulo, IFT; Southampton U.; Stanford U., Phys. Dept.; Sussex U.; Texas A-M; Tokyo U., IPMU; Trieste Observ.; Trieste U.; UC, Santa Cruz, Inst. Part. Phys.; University Coll. London; Wisconsin U., Madison
• Sponsoring Organization: National Science Foundation (NSF); US Department of Energy; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), High Energy Physics (HEP); United Kingdom Science and Technology Facilities Council
• Contributing Organization: DES Collaboration
• Grant/Contract Number: AC02-05CH11231; AC02-06CH11357; AC02-07CH11359; AC02-76SF00515; AC05-00OR22725; SC0021429
• OSTI ID: 1833473
• Report Number(s): FERMILAB-PUB-21-264-AE
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 3 Vol. 509; ISSN 0035-8711
• Publisher: Oxford University PressCopyright Statement
• Country of Publication: United Kingdom
• Language: English