Professor Peder Norberg's Outputs (199)

Euclid: I. Overview of the Euclid mission (2025)
Journal Article
Euclid Collaboration, Mellier, Y., Abdurro’uf, Acevedo Barroso, J. A., Achúcarro, A., Adamek, J., Adam, R., Addison, G. E., Aghanim, N., Aguena, M., Ajani, V., Akrami, Y., Al-Bahlawan, A., Alavi, A., Albuquerque, I. S., Alestas, G., Alguero, G., Allaoui, A., Allen, S. W., Allevato, V., …Zumalacarregui, M. (2025). Euclid: I. Overview of the Euclid mission. Astronomy & Astrophysics, 697, Article A1. https://doi.org/10.1051/0004-6361/202450810

The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients,
dark matter and dark energy, remains unknown. Euclid is a medium-class mission in the Cosmic Vision 2015–2025 programme... Read More about Euclid: I. Overview of the Euclid mission.

Generating mock galaxy catalogues for flux-limited samples like the DESI Bright Galaxy Survey (2024)
Journal Article
Smith, A., Grove, C., Cole, S., Norberg, P., Zarrouk, P., Yuan, S., Aguilar, J., Ahlen, S., Brooks, D., Claybaugh, T., de la Macorra, A., Doel, P., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Hahn, C., Kehoe, R., Kremin, A., Levi, M. E., Manera, M., …Zhou, Z. (2024). Generating mock galaxy catalogues for flux-limited samples like the DESI Bright Galaxy Survey. Monthly Notices of the Royal Astronomical Society, 532(1), 903-919. https://doi.org/10.1093/mnras/stae1503

Accurate mock galaxy catalogues are crucial to validate analysis pipelines used to constrain dark energy models. We present a fast HOD-fitting method which we apply to the AbacusSummit simulations to create a set of mock catalogues for the DESI Brigh... Read More about Generating mock galaxy catalogues for flux-limited samples like the DESI Bright Galaxy Survey.

A new test of gravity – I. Introduction to the method (2024)
Journal Article
Armijo, J., Baugh, C. M., Norberg, P., & Padilla, N. D. (2024). A new test of gravity – I. Introduction to the method. Monthly Notices of the Royal Astronomical Society, 529(3), 2866-2876. https://doi.org/10.1093/mnras/stae719

We introduce a new scheme based on the marked correlation function to probe gravity using the large-scale structure of the Universe. We illustrate our approach by applying it to simulations of the metric-variation f(R) modified gravity theory and gen... Read More about A new test of gravity – I. Introduction to the method.

The PAU Survey: a new constraint on galaxy formation models using the observed colour redshift relation (2024)
Journal Article
Manzoni, G., Baugh, C. M., Norberg, P., Cabayol, L., van den Busch, J. L., Wittje, A., Navarro-Gironés, D., Eriksen, M., Fosalba, P., Carretero, J., Castander, F. J., Casas, R., De Vicente, J., Fernandez, E., García-Bellido, J., Gaztanaga, E., Helly, J. C., Hoekstra, H., Hildebrandt, H., Gonzalez, E. J., …Tortorelli, L. (2024). The PAU Survey: a new constraint on galaxy formation models using the observed colour redshift relation. Monthly Notices of the Royal Astronomical Society, 530(2), 1394-1413. https://doi.org/10.1093/mnras/stae659

We use the GALFORM semi-analytical galaxy formation model implemented in the Planck Millennium N-body simulation to build a mock galaxy catalogue on an observer’s past lightcone. The mass resolution of this N-body simulation is almost an order of mag... Read More about The PAU Survey: a new constraint on galaxy formation models using the observed colour redshift relation.

A new test of gravity – II. Application of marked correlation functions to luminous red galaxy samples (2024)
Journal Article
Armijo, J., Baugh, C. M., Norberg, P., & Padilla, N. D. (2024). A new test of gravity – II. Application of marked correlation functions to luminous red galaxy samples. Monthly Notices of the Royal Astronomical Society, 528(4), 6631-6636. https://doi.org/10.1093/mnras/stae449

We apply the marked correlation function test proposed by Armijo et al. (Paper I) to samples of luminous red galaxies (LRGs) from the final data release of the Sloan Digital Sky Survey (SDSS) III. The test assigns a density-dependent mark to galaxies... Read More about A new test of gravity – II. Application of marked correlation functions to luminous red galaxy samples.

The two-point correlation function covariance with fewer mocks (2023)
Journal Article
Trusov, S., Zarrouk, P., Cole, S., Norberg, P., Zhao, C., Aguilar, J. N., …Zhou, Z. (2024). The two-point correlation function covariance with fewer mocks. Monthly Notices of the Royal Astronomical Society, 527(3), 9048-9060. https://doi.org/10.1093/mnras/stad3710

We present FITCOV an approach for accurate estimation of the covariance of two-point correlation functions that requires fewer mocks than the standard mock-based covariance. This can be achieved by dividing a set of mocks into jackknife regions and f... Read More about The two-point correlation function covariance with fewer mocks.

The DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation (2023)
Journal Article
Hahn, C., Wilson, M. J., Ruiz-Macias, O., Cole, S., Weinberg, D. H., Moustakas, J., …Zou, H. (2023). The DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation. Astronomical Journal, 165(6), Article 253. https://doi.org/10.3847/1538-3881/accff8

Over the next 5 yr, the Dark Energy Spectroscopic Instrument (DESI) will use 10 spectrographs with 5000 fibers on the 4 m Mayall Telescope at Kitt Peak National Observatory to conduct the first Stage IV dark energy galaxy survey. At z < 0.6, the DESI... Read More about The DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation.

A sparse regression approach for populating dark matter haloes and subhaloes with galaxies (2022)
Journal Article
Icaza-Lizaola, M., Bower, R. G., Norberg, P., Cole, S., & Schaller, M. (2022). A sparse regression approach for populating dark matter haloes and subhaloes with galaxies. Monthly Notices of the Royal Astronomical Society, 518(2), 2903-2920. https://doi.org/10.1093/mnras/stac3265

We use sparse regression methods (SRMs) to build accurate and explainable models that predict the stellar mass of central and satellite galaxies as a function of properties of their host dark matter haloes. SRMs are machine learning algorithms that p... Read More about A sparse regression approach for populating dark matter haloes and subhaloes with galaxies.

A light-cone catalogue from the Millennium-XXL simulation: improved spatial interpolation and colour distributions for the DESI BGS (2022)
Journal Article
Smith, A., Cole, S., Grove, C., Norberg, P., & Zarrouk, P. (2022). A light-cone catalogue from the Millennium-XXL simulation: improved spatial interpolation and colour distributions for the DESI BGS. Monthly Notices of the Royal Astronomical Society, 516(3), 4529 - 4542. https://doi.org/10.1093/mnras/stac2519

The use of realistic mock galaxy catalogues is essential in the preparation of large galaxy surveys, in order to test and validate theoretical models and to assess systematics. We present an updated version of the mock catalogue constructed from the... Read More about A light-cone catalogue from the Millennium-XXL simulation: improved spatial interpolation and colour distributions for the DESI BGS.

Solving small-scale clustering problems in approximate light-cone mocks (2022)
Journal Article
Smith, A., Cole, S., Grove, C., Norberg, P., & Zarrouk, P. (2022). Solving small-scale clustering problems in approximate light-cone mocks. Monthly Notices of the Royal Astronomical Society, 516(1), 1062 - 1071. https://doi.org/10.1093/mnras/stac2219

Realistic light-cone mocks are important in the clustering analyses of large galaxy surveys. For simulations where only the snapshots are available, it is common to create approximate light-cones by joining together the snapshots in spherical shells.... Read More about Solving small-scale clustering problems in approximate light-cone mocks.

The DESI N-body simulation project – I. Testing the robustness of simulations for the DESI dark time survey (2022)
Journal Article
Grove, C., Chuang, C.-H., Devi, N. C., Garrison, L., L’Huillier, B., Feng, Y., Helly, J., Hernández-Aguayo, C., Alam, S., Zhang, H., Yu, Y., Cole, S., Eisenstein, D., Norberg, P., Wechsler, R., Brooks, D., Dawson, K., Landriau, M., Meisner, A., Poppett, C., …Valenzuela, O. (2022). The DESI N-body simulation project – I. Testing the robustness of simulations for the DESI dark time survey. Monthly Notices of the Royal Astronomical Society, 515(2), https://doi.org/10.1093/mnras/stac1947

Analysis of large galaxy surveys requires confidence in the robustness of numerical simulation methods. The simulations are used to construct mock galaxy catalogues to validate data analysis pipelines and identify potential systematics. We compare th... Read More about The DESI N-body simulation project – I. Testing the robustness of simulations for the DESI dark time survey.

Making use of sub-resolution haloes in N-body simulations (2021)
Journal Article
Armijo, J., Baugh, C. M., Padilla, N. D., Norberg, P., & Arnold, C. (2022). Making use of sub-resolution haloes in N-body simulations. Monthly Notices of the Royal Astronomical Society, 510(1), 29-33. https://doi.org/10.1093/mnrasl/slab122

Conservative mass limits are often imposed on the dark matter halo catalogues extracted from N-body simulations. By comparing simulations with different mass resolutions, at z = 0 we find that even for haloes resolved by 100 particles, the lower reso... Read More about Making use of sub-resolution haloes in N-body simulations.

Preliminary clustering properties of the DESI BGS bright targets using DR9 Legacy Imaging Surveys (2021)
Journal Article
Zarrouk, P., Ruiz-Macias, O., Cole, S., Norberg, P., Baugh, C., Brooks, D., Gaztañaga, E., Kitanidis, E., Kehoe, R., Landriau, M., Moustakas, J., Prada, F., & Tarlé, G. (2022). Preliminary clustering properties of the DESI BGS bright targets using DR9 Legacy Imaging Surveys. Monthly Notices of the Royal Astronomical Society, 509(1), 1478-1493. https://doi.org/10.1093/mnras/stab2814

We characterize the selection cuts and clustering properties of a magnitude-limited sample of bright galaxies that is part of the Bright Galaxy Survey (BGS) of the Dark Energy Spectroscopic Instrument (DESI) using the ninth data release of the Legacy... Read More about Preliminary clustering properties of the DESI BGS bright targets using DR9 Legacy Imaging Surveys.

A sparse regression approach to modelling the relation between galaxy stellar masses and their host haloes (2021)
Journal Article
Icaza-Lizaola, M., Bower, R. G., Norberg, P., Cole, S., Schaller, M., & Egan, S. (2021). A sparse regression approach to modelling the relation between galaxy stellar masses and their host haloes. Monthly Notices of the Royal Astronomical Society, 507(3), 4584-4602. https://doi.org/10.1093/mnras/stab2368

Sparse regression algorithms have been proposed as the appropriate framework to model the governing equations of a system from data, without needing prior knowledge of the underlying physics. In this work, we use sparse regression to build an accurat... Read More about A sparse regression approach to modelling the relation between galaxy stellar masses and their host haloes.

Rosella: a mock catalogue from the P-Millennium simulation (2021)
Journal Article
Safonova, S., Norberg, P., & Cole, S. (2021). Rosella: a mock catalogue from the P-Millennium simulation. Monthly Notices of the Royal Astronomical Society, 505(1), 325-338. https://doi.org/10.1093/mnras/stab1286

The scientific exploitation of the Dark Energy Spectroscopic Instrument Bright Galaxy Survey (DESI BGS) data requires the construction of mocks with galaxy population properties closely mimicking those of the actual DESI BGS targets. We create a high... Read More about Rosella: a mock catalogue from the P-Millennium simulation.

Baryon acoustic oscillations in the projected cross-correlation function between the eBOSS DR16 quasars and photometric galaxies from the DESI Legacy Imaging Surveys (2021)
Journal Article
Zarrouk, P., Rezaie, M., Raichoor, A., Ross, A. J., Alam, S., Blum, R., Brookes, D., Chuang, C.-H., Cole, S., Dawson, K. S., Eisenstein, D. J., Kehoe, R., Landriau, M., Moustakas, J., Myers, A. D., Norberg, P., Percival, W. J., Prada, F., Schubnell, M., Seo, H.-J., …Zhao, C. (2021). Baryon acoustic oscillations in the projected cross-correlation function between the eBOSS DR16 quasars and photometric galaxies from the DESI Legacy Imaging Surveys. Monthly Notices of the Royal Astronomical Society, 503(2), 2562-2582. https://doi.org/10.1093/mnras/stab298

We search for the baryon acoustic oscillations in the projected cross-correlation function binned into transverse comoving radius between the SDSS-IV DR16 eBOSS quasars and a dense photometric sample of galaxies selected from the DESI Legacy Imaging... Read More about Baryon acoustic oscillations in the projected cross-correlation function between the eBOSS DR16 quasars and photometric galaxies from the DESI Legacy Imaging Surveys.

Characterizing the target selection pipeline for the Dark Energy Spectroscopic Instrument Bright Galaxy Survey (2021)
Journal Article
Ruiz-Macias, O., Zarrouk, P., Cole, S., Baugh, C. M., Norberg, P., Lucey, J., Dey, A., Eisenstein, D. J., Doel, P., Gaztañaga, E., Hahn, C., Kehoe, R., Kitanidis, E., Landriau, M., Lang, D., Moustakas, J., Myers, A. D., Prada, F., Schubnell, M., Weinberg, D. H., & Wilson, M. (2021). Characterizing the target selection pipeline for the Dark Energy Spectroscopic Instrument Bright Galaxy Survey. Monthly Notices of the Royal Astronomical Society, 502(3), 4328-4349. https://doi.org/10.1093/mnras/stab292

We present the steps taken to produce a reliable and complete input galaxy catalogue for the Dark Energy Spectroscopic Instrument (DESI) Bright Galaxy Survey (BGS) using the photometric Legacy Survey DR8 DECam. We analyse some of the main issues face... Read More about Characterizing the target selection pipeline for the Dark Energy Spectroscopic Instrument Bright Galaxy Survey.

The PAU Survey: an improved photo-z sample in the COSMOS field (2021)
Journal Article
Alarcon, A., Gaztanaga, E., Eriksen, M., Baugh, C. M., Cabayol, L., Casas, R., Carretero, J., Castander, F. J., De Vicente, J., Fernandez, E., Garcia-Bellido, J., Hildebrandt, H., Hoekstra, H., Joachimi, B., Manzoni, G., Miquel, R., Norberg, P., Padilla, C., Renard, P., Sanchez, E., …Tallada-Crespí, P. (2021). The PAU Survey: an improved photo-z sample in the COSMOS field. Monthly Notices of the Royal Astronomical Society, 501(4), 6103-6122. https://doi.org/10.1093/mnras/staa3659

We present – and make publicly available – accurate and precise photometric redshifts in the ACS footprint from the COSMOS field for objects with iAB ≤ 23. The redshifts are computed using a combination of narrow-band photometry from PAUS, a survey w... Read More about The PAU Survey: an improved photo-z sample in the COSMOS field.

The Pan-STARRS1 Database and Data Products (2020)
Journal Article
Flewelling, H., Magnier, E., Chambers, K., Heasley, J., Holmberg, C., Huber, M., Sweeney, W., Waters, C., Calamida, A., Casertano, S., Chen, X., Farrow, D., Hasinger, G., Henderson, R., Long, K., Metcalfe, N., Narayan, G., Nieto-Santisteban, M., Norberg, P., Rest, A., …Shiao, B. (2020). The Pan-STARRS1 Database and Data Products. Astrophysical Journal Supplement, 251(1), Article 7. https://doi.org/10.3847/1538-4365/abb82d

This paper describes the organization of the database and the catalog data products from the Pan-STARRS1 3π Steradian Survey. The catalog data products are available in the form of an SQL-based relational database from MAST, the Mikulski Archive for... Read More about The Pan-STARRS1 Database and Data Products.

Modelling the quenching of star formation activity from the evolution of the colour-magnitude relation in VIPERS (2020)
Journal Article
Manzoni, G., Scodeggio, M., Baugh, C., Norberg, P., De Lucia, G., Fritz, A., Haines, C., Zamorani, G., Gargiulo, A., Guzzo, L., Iovino, A., Małek, K., Pollo, A., Siudek, M., & Vergani, D. (2021). Modelling the quenching of star formation activity from the evolution of the colour-magnitude relation in VIPERS. New Astronomy, 84, Article 101515. https://doi.org/10.1016/j.newast.2020.101515

We study the evolution of the colour-magnitude relation for galaxies in the VIMOS Public Extragalactic Redshift Survey (VIPERS) by introducing the concept of the bright edge, and use this to derive constraints on the quenching of star formation activ... Read More about Modelling the quenching of star formation activity from the evolution of the colour-magnitude relation in VIPERS.