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Consistent lensing and clustering in a low-S8 Universe with BOSS, DES Year 3, HSC Year 1, and KiDS-1000 (2022)
Journal Article
Amon, A., Robertson, N. C., Miyatake, †. H., Heymans, C., White, M., Derose, J., …Zhang, Y. (2023). Consistent lensing and clustering in a low-S8 Universe with BOSS, DES Year 3, HSC Year 1, and KiDS-1000. Monthly notices of the Royal Astronomical Society, 518(1), 477-503. https://doi.org/10.1093/mnras/stac2938

We evaluate the consistency between lensing and clustering based on measurements from BOSS combined with galaxy-galaxy lensing from DES-Y3, HSC-Y1, KiDS-1000. We find good agreement between these lensing datasets. We model the observations using the... Read More about Consistent lensing and clustering in a low-S8 Universe with BOSS, DES Year 3, HSC Year 1, and KiDS-1000.

KiDS and Euclid: Cosmological implications of a pseudo angular power spectrum analysis of KiDS-1000 cosmic shear tomography (2022)
Journal Article
Loureiro, A., Whittaker, L., Spurio Mancini, A., Joachimi, B., Cuceu, A., Asgari, M., …Tereno, I. (2022). KiDS and Euclid: Cosmological implications of a pseudo angular power spectrum analysis of KiDS-1000 cosmic shear tomography. Astronomy and Astrophysics, 665, Article A56. https://doi.org/10.1051/0004-6361/202142481

We present a tomographic weak lensing analysis of the Kilo Degree Survey Data Release 4 (KiDS-1000), using a new pseudo angular power spectrum estimator (pseudo-C) under development for the ESA Euclid mission. Over 21 million galaxies with shape info... Read More about KiDS and Euclid: Cosmological implications of a pseudo angular power spectrum analysis of KiDS-1000 cosmic shear tomography.

The halo model with beyond-linear halo bias: unbiasing cosmological constraints from galaxy-galaxy lensing and clustering (2022)
Journal Article
Mahony, C., Dvornik, A., Mead, A., Heymans, C., Asgari, M., Hildebrandt, H., Miyatake, H., Nishimichi, T., & Reischke, R. (2022). The halo model with beyond-linear halo bias: unbiasing cosmological constraints from galaxy-galaxy lensing and clustering. Monthly notices of the Royal Astronomical Society, 515(2), 2612–2623. https://doi.org/10.1093/mnras/stac1858

We determine the error introduced in a joint halo model analysis of galaxy-galaxy lensing and galaxy clustering observables when adopting the standard approximation of linear halo bias. Considering the Kilo-Degree Survey, we forecast that ignoring th... Read More about The halo model with beyond-linear halo bias: unbiasing cosmological constraints from galaxy-galaxy lensing and clustering.

KiDS-1000: cosmic shear with enhanced redshift calibration (2022)
Journal Article
Van Den Busch, J. L., Wright, A. H., Hildebrandt, H., Bilicki, M., Asgari, M., Joudaki, S., …Tröster, T. (in press). KiDS-1000: cosmic shear with enhanced redshift calibration. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/202142083

We present a cosmic shear analysis with an improved redshift calibration for the fourth data release of the Kilo-Degree Survey (KiDS-1000) using self-organising maps (SOMs). Compared to the previous analysis of the KiDS-1000 data, we expand the redsh... Read More about KiDS-1000: cosmic shear with enhanced redshift calibration.

Pure-mode correlation functions for cosmic shear and application to KiDS-1000 (2022)
Journal Article
Schneider, P., Asgari, M., Jozani, Y. N., Dvornik, A., Giblin, B., Harnois-Déraps, J., …Wright, A. H. (in press). Pure-mode correlation functions for cosmic shear and application to KiDS-1000. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/202142479

One probe for systematic effects in gravitational lensing surveys is the presence of so-called B modes in the cosmic shear two-point correlation functions, ξ ± (ϑ), since lensing is expected to produce only E-mode shear. Furthermore, there exist ambi... Read More about Pure-mode correlation functions for cosmic shear and application to KiDS-1000.

Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies (2022)
Journal Article
Abdalla, E., Abellán, G. F., Aboubrahim, A., Agnello, A., Akarsu, Ö., Akrami, Y., …Zumalacárregui, M. (2022). Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies. Journal of High Energy Astrophysics, 34, 49-211. https://doi.org/10.1016/j.jheap.2022.04.002

The standard Λ Cold Dark Matter (ΛCDM) cosmological model provides a good description of a wide range of astrophysical and cosmological data. However, there are a few big open questions that make the standard model look like an approximation to a mor... Read More about Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies.

The dark matter halo masses of elliptical galaxies as a function of observationally robust quantities (2022)
Journal Article
Sonnenfeld, A., Tortora, C., Hoekstra, H., Asgari, M., Bilicki, M., Heymans, C., …Wright, A. H. (in press). The dark matter halo masses of elliptical galaxies as a function of observationally robust quantities. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/202142511

Context. The assembly history of the stellar component of a massive elliptical galaxy is closely related to that of its dark matter halo. Measuring how the properties of galaxies correlate with their halo mass can therefore help to understand their e... Read More about The dark matter halo masses of elliptical galaxies as a function of observationally robust quantities.

KiDS-1000 cosmology: Cosmic shear constraints and comparison between two point statistics (2021)
Journal Article
Asgari, M., Lin, C. A., Joachimi, B., Giblin, B., Heymans, C., Hildebrandt, H., …Valentijn, E. (2021). KiDS-1000 cosmology: Cosmic shear constraints and comparison between two point statistics. Astronomy and Astrophysics, 645, Article A104. https://doi.org/10.1051/0004-6361/202039070

We present cosmological constraints from a cosmic shear analysis of the fourth data release of the Kilo-Degree Survey (KiDS-1000), which doubles the survey area with nine-band optical and near-infrared photometry with respect to previous KiDS analyse... Read More about KiDS-1000 cosmology: Cosmic shear constraints and comparison between two point statistics.