@article{ed1eb79087c04a0994b0b177531cec89,
title = "Dark Energy Survey Year 3 results: Galaxy-halo connection from galaxy-galaxy lensing",
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 15 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.",
keywords = "cosmology: dark matter, gravitational lensing: weak, large-scale structure of Universe",
author = "{DES Collaboration} and G. Zacharegkas and C. Chang and J. Prat and S. Pandey and I. Ferrero and J. Blazek and B. Jain and M. Crocce and J. Derose and A. Palmese and S. Seitz and E. Sheldon and Hartley, {W. G.} and Wechsler, {R. H.} and S. Dodelson and P. Fosalba and E. Krause and Y. Park and C. S{\'a}nchez and A. Alarcon and A. Amon and K. Bechtol and Becker, {M. R.} and Bernstein, {G. M.} and A. Campos and {Carnero Rosell}, A. and {Carrasco Kind}, M. and R. Cawthon and R. Chen and A. Choi and J. Cordero and C. Davis and Diehl, {H. T.} and C. Doux and A. Drlica-Wagner and K. Eckert and J. Elvin-Poole and S. Everett and A. Fert{\'e} and M. Gatti and G. Giannini and D. Gruen and Gruendl, {R. A.} and I. Harrison and K. Herner and Huff, {E. M.} and M. Jarvis and N. Kuropatkin and Leget, {P. F.} and E. Suchyta",
note = "Publisher Copyright: {\textcopyright} 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.",
year = "2022",
month = jan,
day = "1",
doi = "10.1093/mnras/stab3155",
language = "English",
volume = "509",
pages = "3119--3147",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "3",
}