Help Privacy Policy Disclaimer
  Advanced SearchBrowse


  Dark Energy Survey Year 3 Results: Galaxy mock catalogs for BAO analysis

Ferrero, I., Crocce, M., Tutusaus, I., Porredon, A., Blot, L., Fosalba, P., et al. (2021). Dark Energy Survey Year 3 Results: Galaxy mock catalogs for BAO analysis. Astronomy and Astrophysics, 656: A106. doi:10.1051/0004-6361/202141744.

Item is


show Files
hide Files
Dark Energy Survey Year 3 Results Galaxy mock catalogs for BAO analysis.pdf (Any fulltext), 2MB
File Permalink:
Dark Energy Survey Year 3 Results Galaxy mock catalogs for BAO analysis.pdf
MIME-Type / Checksum:
Technical Metadata:
Copyright Date:
Copyright Info:




Ferrero, I., Author
Crocce, M., Author
Tutusaus, I., Author
Porredon, A., Author
Blot, L., Author
Fosalba, P., Author
Rosell, A. Carnero, Author
Avila, S., Author
Izard, A., Author
Elvin-Poole, J., Author
Chan, K. C., Author
Camacho, H., Author
Rosenfeld, R., Author
Sanchez, E., Author
Tallada-Crespí, P., Author
Carretero, J., Author
Sevilla-Noarbe, I., Author
Gaztanaga, E., Author
Andrade-Oliveira, F., Author
Vicente, J. De, Author
Mena-Fernández, J., AuthorRoss, A. J., AuthorCid, D. Sanchez, AuthorFerté, A., AuthorBrandao-Souza, A., AuthorFang, X., AuthorKrause, E., AuthorGomes, D., AuthorAguena, M., AuthorAllam, S., AuthorAnnis, J., AuthorBertin, E., AuthorBrooks, D., AuthorKind, M. Carrasco, AuthorCastander, F. J., AuthorCawthon, R., AuthorChoi, A., AuthorConselice, C., AuthorCostanzi, M., Authorda Costa, L. N., AuthorPereira, M. E. S., AuthorDiehl, H. T., AuthorDoel, P., AuthorDrlica-Wagner, A., AuthorEverett, S., AuthorEvrard, A. E., AuthorFlaugher, B., AuthorFrieman, J., AuthorGarcía-Bellido, J., AuthorGerdes, D. W., AuthorGruen, D., AuthorGruendl, R. A., AuthorGschwend, J., AuthorGutierrez, G., AuthorHinton, S. R., AuthorHollowood, D. L., AuthorHonscheid, K., AuthorHoyle, B., AuthorHuterer, D., AuthorJames, D. J., AuthorKuehn, K., AuthorLima, M., AuthorMaia, M. A. G., AuthorMarshall, J. L., AuthorMenanteau, F., AuthorMiquel, R., AuthorMorgan, R., AuthorMuir, J., AuthorOgando, R. L. C., AuthorPalmese, A., AuthorPaz-Chinchón, F., AuthorPercival, W. J., AuthorMalagón, A. A. Plazas, AuthorRodriguez-Monroy, M., AuthorScarpine, V., AuthorSchubnell, M., AuthorSerrano, S., AuthorSmith, M., AuthorSoares-Santos, M., AuthorSuchyta, E., AuthorSwanson, M. E. C., AuthorTarle, G., AuthorThomas, D., AuthorTo, C., AuthorTucker, D. L., AuthorVarga, T. N.1, Author            more..
1Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159895              


Free keywords: -
 Abstract: The calibration and validation of scientific analysis in simulations is a fundamental tool to ensure unbiased and robust results in observational cosmology. In particular, mock galaxy catalogs are a crucial resource to achieve these goals in the measurement of baryon acoustic oscillation (BAO) in the clustering of galaxies. Here we present a set of 1952 galaxy mock catalogs designed to mimic the Dark Energy Survey Year 3 BAO sample over its full photometric redshift range 0.6 < z<sub>photo</sub> < 1.1. The mocks are based upon 488 ICE-COLA fast N-body simulations of full-sky light cones and were created by populating halos with galaxies, using a hybrid halo occupation distribution – halo abundance matching model. This model has ten free parameters, which were determined, for the first time, using an automatic likelihood minimization procedure. We also introduced a novel technique to assign photometric redshift for simulated galaxies, following a two-dimensional probability distribution with VIMOS Public Extragalactic Redshift Survey data. The calibration was designed to match the observed abundance of galaxies as a function of photometric redshift, the distribution of photometric redshift errors, and the clustering amplitude on scales smaller than those used for BAO measurements. An exhaustive analysis was done to ensure that the mocks reproduce the input properties. Finally, mocks were tested by comparing the angular correlation function w(θ), angular power spectrum C<sub>ℓ</sub>, and projected clustering ξ<sub>p</sub>(r<sub>⊥</sub>) to theoretical predictions and data. The impact of volume replication in the estimate of the covariance is also investigated. The success in accurately reproducing the photometric redshift uncertainties and the galaxy clustering as a function of redshift render this mock creation pipeline as a benchmark for future analyses of photometric galaxy surveys.


Language(s): eng - English
 Dates: 2021-12-09
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1051/0004-6361/202141744
 Degree: -



Legal Case


Project information


Source 1

Title: Astronomy and Astrophysics
  Other : Astron. Astrophys.
Source Genre: Journal
Publ. Info: France : EDP Sciences S A
Pages: - Volume / Issue: 656 Sequence Number: A106 Start / End Page: - Identifier: ISSN: 1432-0746
CoNE: https://pure.mpg.de/cone/journals/resource/954922828219_1