Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys
We present the Cardinal mock galaxy catalogs, a new version of the Buzzard simulation that has been updated to support ongoing and future cosmological surveys, including the Dark Energy Survey (DES), DESI, and LSST. These catalogs are based on a one-quarter sky simulation populated with galaxies out...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/ad0e61 |
| _version_ | 1797354871583670272 |
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| author | Chun-Hao To Joseph DeRose Risa H. Wechsler Eli Rykoff Hao-Yi Wu Susmita Adhikari Elisabeth Krause Eduardo Rozo David H. Weinberg |
| author_facet | Chun-Hao To Joseph DeRose Risa H. Wechsler Eli Rykoff Hao-Yi Wu Susmita Adhikari Elisabeth Krause Eduardo Rozo David H. Weinberg |
| author_sort | Chun-Hao To |
| collection | DOAJ |
| description | We present the Cardinal mock galaxy catalogs, a new version of the Buzzard simulation that has been updated to support ongoing and future cosmological surveys, including the Dark Energy Survey (DES), DESI, and LSST. These catalogs are based on a one-quarter sky simulation populated with galaxies out to a redshift of z = 2.35 to a depth of m _r = 27. Compared to the Buzzard mocks, the Cardinal mocks include an updated subhalo abundance matching model that considers orphan galaxies and includes mass-dependent scatter between galaxy luminosity and halo properties. This model can simultaneously fit galaxy clustering and group–galaxy cross-correlations measured in three different luminosity threshold samples. The Cardinal mocks also feature a new color assignment model that can simultaneously fit color-dependent galaxy clustering in three different luminosity bins. We have developed an algorithm that uses photometric data to further improve the color assignment model and have also developed a novel method to improve small-scale lensing below the ray-tracing resolution. These improvements enable the Cardinal mocks to accurately reproduce the abundance of galaxy clusters and the properties of lens galaxies in the DES data. As such, these simulations will be a valuable tool for future cosmological analyses based on large sky surveys. |
| first_indexed | 2024-03-08T13:56:03Z |
| format | Article |
| id | doaj.art-57a146860cf440e5995ffc1be63e2809 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-08T13:56:03Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-57a146860cf440e5995ffc1be63e28092024-01-15T13:38:47ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-0196115910.3847/1538-4357/ad0e61Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy SurveysChun-Hao To0https://orcid.org/0000-0001-7836-2261Joseph DeRose1https://orcid.org/0000-0002-0728-0960Risa H. Wechsler2https://orcid.org/0000-0003-2229-011XEli Rykoff3https://orcid.org/0000-0001-9376-3135Hao-Yi Wu4https://orcid.org/0000-0002-7904-1707Susmita Adhikari5https://orcid.org/0000-0002-0298-4432Elisabeth Krause6https://orcid.org/0000-0001-8356-2014Eduardo Rozo7https://orcid.org/0000-0002-1666-6275David H. Weinberg8https://orcid.org/0000-0001-7775-7261Center for Cosmology and AstroParticle Physics (CCAPP), Ohio State University , Columbus, OH 43210, USA ; to.87@osu.edu; Department of Physics, Ohio State University , Columbus, OH 43210, USA; Department of Astronomy, Ohio State University , Columbus, OH 43210, USAPhysics Division, Lawrence Berkeley National Laboratory , Berkeley, CA, USAKavli Institute for Particle Astrophysics and Cosmology , Stanford, CA, USA; Physics Department, Stanford University , Stanford, CA 94305, USA; SLAC National Accelerator Laboratory , Menlo Park, CA 94025, USAKavli Institute for Particle Astrophysics and Cosmology , Stanford, CA, USA; SLAC National Accelerator Laboratory , Menlo Park, CA 94025, USADepartment of Physics, Boise State University , Boise, ID 83725, USAIndian Institute of Science Education and Research Pune, Pune, Maharashtra, IndiaDepartment of Astronomy/Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USADepartment of Physics, University of Arizona , Tucson, AZ 85721, USACenter for Cosmology and AstroParticle Physics (CCAPP), Ohio State University , Columbus, OH 43210, USA ; to.87@osu.edu; Department of Astronomy, Ohio State University , Columbus, OH 43210, USAWe present the Cardinal mock galaxy catalogs, a new version of the Buzzard simulation that has been updated to support ongoing and future cosmological surveys, including the Dark Energy Survey (DES), DESI, and LSST. These catalogs are based on a one-quarter sky simulation populated with galaxies out to a redshift of z = 2.35 to a depth of m _r = 27. Compared to the Buzzard mocks, the Cardinal mocks include an updated subhalo abundance matching model that considers orphan galaxies and includes mass-dependent scatter between galaxy luminosity and halo properties. This model can simultaneously fit galaxy clustering and group–galaxy cross-correlations measured in three different luminosity threshold samples. The Cardinal mocks also feature a new color assignment model that can simultaneously fit color-dependent galaxy clustering in three different luminosity bins. We have developed an algorithm that uses photometric data to further improve the color assignment model and have also developed a novel method to improve small-scale lensing below the ray-tracing resolution. These improvements enable the Cardinal mocks to accurately reproduce the abundance of galaxy clusters and the properties of lens galaxies in the DES data. As such, these simulations will be a valuable tool for future cosmological analyses based on large sky surveys.https://doi.org/10.3847/1538-4357/ad0e61CosmologyDark matterN-body simulationsLarge-scale structure of the universeGalaxy dark matter halosGalaxy evolution |
| spellingShingle | Chun-Hao To Joseph DeRose Risa H. Wechsler Eli Rykoff Hao-Yi Wu Susmita Adhikari Elisabeth Krause Eduardo Rozo David H. Weinberg Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys The Astrophysical Journal Cosmology Dark matter N-body simulations Large-scale structure of the universe Galaxy dark matter halos Galaxy evolution |
| title | Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys |
| title_full | Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys |
| title_fullStr | Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys |
| title_full_unstemmed | Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys |
| title_short | Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys |
| title_sort | buzzard to cardinal improved mock catalogs for large galaxy surveys |
| topic | Cosmology Dark matter N-body simulations Large-scale structure of the universe Galaxy dark matter halos Galaxy evolution |
| url | https://doi.org/10.3847/1538-4357/ad0e61 |
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