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Evolution of cosmic filaments in the MTNG simulation (2024)
Journal Article
Galárraga-Espinosa, D., Cadiou, C., Gouin, C., White, S. D. M., Springel, V., Pakmor, R., …Hernández-Aguayo, C. (2024). Evolution of cosmic filaments in the MTNG simulation. Astronomy & Astrophysics, 684, Article A63. https://doi.org/10.1051/0004-6361/202347982

We present a study of the evolution of cosmic filaments across redshift with an emphasis on some important properties: filament lengths, growth rates, and radial profiles of galaxy densities. Following an observation-driven approach, we built cosmic... Read More about Evolution of cosmic filaments in the MTNG simulation.

Statistics of thermal gas pressure as a probe of cosmology and galaxy formation (2024)
Journal Article
Chen, Z., Jamieson, D., Komatsu, E., Bose, S., Dolag, K., Hadzhiyska, B., Hernández-Aguayo, C., Hernquist, L., Kannan, R., Pakmor, R., & Springel, V. (2024). Statistics of thermal gas pressure as a probe of cosmology and galaxy formation. Physical Review D, 109(6), Article 063513. https://doi.org/10.1103/physrevd.109.063513

The statistics of thermal gas pressure are a new and promising probe of cosmology and astrophysics. The large-scale cross-correlation between galaxies and the thermal Sunyaev-Zeldovich effect gives the bias-weighted mean electron pressure, hbhPei. In... Read More about Statistics of thermal gas pressure as a probe of cosmology and galaxy formation.

The origin of lopsided satellite galaxy distribution around isolated systems in MillenniumTNG (2024)
Journal Article
Liu, Y., Wang, P., Guo, H., Springel, V., Bose, S., Pakmor, R., & Hernquist, L. (2024). The origin of lopsided satellite galaxy distribution around isolated systems in MillenniumTNG. Monthly Notices of the Royal Astronomical Society, 529(2), 1405-1413. https://doi.org/10.1093/mnras/stae625

Dwarf satellites in galaxy groups are distributed in an anisotropic and asymmetric manner, which is called the ‘lopsided satellite distribution’. This lopsided signal has been observed not only in galaxy pairs but also in isolated systems. However, t... Read More about The origin of lopsided satellite galaxy distribution around isolated systems in MillenniumTNG.

The mass accretion history of dark matter haloes down to Earth mass (2023)
Journal Article
Liu, Y., Gao, L., Bose, S., Frenk, C. S., Jenkins, A., Springel, V., Wang, J., White, S. D. M., & Zheng, H. (2023). The mass accretion history of dark matter haloes down to Earth mass. Monthly Notices of the Royal Astronomical Society, 527(4), 11740-11750. https://doi.org/10.1093/mnras/stae003

We take advantage of the unprecedented dynamical range provided by the ‘Cosmic-Zoom’ project to study the mass accretion history (MAH) of present-day dark matter haloes o v er the entire mass range present in the Lambda cold dark matter paradigm when... Read More about The mass accretion history of dark matter haloes down to Earth mass.

Ghostly Galaxies: Accretion-dominated Stellar Systems in Low-mass Dark Matter Halos (2023)
Journal Article
Wang, C.-W., Cooper, A. P., Bose, S., Frenk, C. S., & Hellwing, W. A. (2023). Ghostly Galaxies: Accretion-dominated Stellar Systems in Low-mass Dark Matter Halos. Astrophysical Journal, 958(2), Article 166. https://doi.org/10.3847/1538-4357/ad011d

Wide-area deep imaging surveys have discovered large numbers of extremely low surface brightness (LSB) dwarf galaxies, which challenge galaxy formation theory and, potentially, offer new constraints on the nature of dark matter. Here we discuss one a... Read More about Ghostly Galaxies: Accretion-dominated Stellar Systems in Low-mass Dark Matter Halos.

An emulator-based halo model in modified gravity – I. The halo concentration–mass relation and density profile (2023)
Journal Article
Ruan, C.-Z., Cuesta-Lazaro, C., Eggemeier, A., Li, B., Baugh, C. M., Arnold, C., Bose, S., Hernández-Aguayo, C., Zarrouk, P., & Davies, C. T. (in press). An emulator-based halo model in modified gravity – I. The halo concentration–mass relation and density profile. Monthly Notices of the Royal Astronomical Society, 527(2), 2490–2507. https://doi.org/10.1093/mnras/stad3021

Gravitational-wave event rates as a new probe for dark matter microphysics (2023)
Journal Article
Mosbech, M. R., Jenkins, A. C., Bose, S., Boehm, C., Sakellariadou, M., & Wong, Y. Y. (2023). Gravitational-wave event rates as a new probe for dark matter microphysics. Physical Review D, 108(4), Article 043512. https://doi.org/10.1103/physrevd.108.043512

We show that gravitational waves have the potential to unravel the microphysical properties of dark matter due to the dependence of the binary black hole merger rate on cosmic structure formation, which is itself highly dependent on the dark matter s... Read More about Gravitational-wave event rates as a new probe for dark matter microphysics.

The MillenniumTNG Project: the impact of baryons and massive neutrinos on high-resolution weak gravitational lensing convergence maps (2023)
Journal Article
Ferlito, F., Springel, V., Davies, C. T., Hernández-Aguayo, C., Pakmor, R., Barrera, M., White, S. D. M., Delgado, A. M., Hadzhiyska, B., Hernquist, L., Kannan, R., Bose, S., & Frenk, C. (2023). The MillenniumTNG Project: the impact of baryons and massive neutrinos on high-resolution weak gravitational lensing convergence maps. Monthly Notices of the Royal Astronomical Society, 524(4), 5591-5606. https://doi.org/10.1093/mnras/stad2205

We study weak gravitational lensing convergence maps produced from the MILLENNIUM TNG simulations by direct projection of the mass distribution on the past backwards lightcone of a fiducial observer. We explore the lensing maps over a large dynamic r... Read More about The MillenniumTNG Project: the impact of baryons and massive neutrinos on high-resolution weak gravitational lensing convergence maps.

The MillenniumTNG Project: high-precision predictions for matter clustering and halo statistics (2023)
Journal Article
Hernández-Aguayo, C., Springel, V., Pakmor, R., Barrera, M., Ferlito, F., White, S. D. M., Hernquist, L., Hadzhiyska, B., Delgado, A. M., Kannan, R., Bose, S., & Frenk, C. (2023). The MillenniumTNG Project: high-precision predictions for matter clustering and halo statistics. Monthly Notices of the Royal Astronomical Society, 524(2), 2556-2578. https://doi.org/10.1093/mnras/stad1657

The MillenniumTNG project: the galaxy population at z ≥ 8 (2023)
Journal Article
Kannan, R., Springel, V., Hernquist, L., Pakmor, R., Delgado, A. M., Hadzhiyska, B., Hernández-Aguayo, C., Barrera, M., Ferlito, F., Bose, S., White, S. D. M., Frenk, C., Smith, A., & Garaldi, E. (2023). The MillenniumTNG project: the galaxy population at z ≥ 8. Monthly Notices of the Royal Astronomical Society, 524(2), 2594-2605. https://doi.org/10.1093/mnras/stac3743

The early release science results from JWST have yielded an unexpected abundance of high-redshift luminous galaxies that seems to be in tension with current theories of galaxy formation. However, it is currently difficult to draw definitive conclusio... Read More about The MillenniumTNG project: the galaxy population at z ≥ 8.

The MillenniumTNG Project: inferring cosmology from galaxy clustering with accelerated N-body scaling and subhalo abundance matching (2023)
Journal Article
Contreras, S., Angulo, R. E., Springel, V., White, S. D. M., Hadzhiyska, B., Hernquist, L., Pakmor, R., Kannan, R., Hernández-Aguayo, C., Barrera, M., Ferlito, F., Delgado, A. M., Bose, S., & Frenk, C. (2023). The MillenniumTNG Project: inferring cosmology from galaxy clustering with accelerated N-body scaling and subhalo abundance matching. Monthly Notices of the Royal Astronomical Society, 524(2), 2489-2506. https://doi.org/10.1093/mnras/stac3699

We introduce a novel technique for constraining cosmological parameters and galaxy assembly bias using non-linear redshift-space clustering of galaxies. We scale cosmological N-body simulations and insert galaxies with the SubHalo Abundance Matching... Read More about The MillenniumTNG Project: inferring cosmology from galaxy clustering with accelerated N-body scaling and subhalo abundance matching.

The MillenniumTNG Project: the hydrodynamical full physics simulation and a first look at its galaxy clusters (2023)
Journal Article
Pakmor, R., Springel, V., Coles, J. P., Guillet, T., Pfrommer, C., Bose, S., Barrera, M., Delgado, A. M., Ferlito, F., Frenk, C., Hadzhiyska, B., Hernández-Aguayo, C., Hernquist, L., Kannan, R., & White, S. D. M. (2023). The MillenniumTNG Project: the hydrodynamical full physics simulation and a first look at its galaxy clusters. Monthly Notices of the Royal Astronomical Society, 524(2), 2539-2555. https://doi.org/10.1093/mnras/stac3620

Cosmologicalsimulations are an important theoretical pillar for understanding non-linearstructure formation in our Universe and for relating it to observations on large scales. In several papers, we introduce our MillenniumTNG (MTNG) project that pro... Read More about The MillenniumTNG Project: the hydrodynamical full physics simulation and a first look at its galaxy clusters.

The MillenniumTNG Project: the large-scale clustering of galaxies (2023)
Journal Article
Bose, S., Hadzhiyska, B., Barrera, M., Delgado, A. M., Ferlito, F., Frenk, C., Hernández-Aguayo, C., Hernquist, L., Kannan, R., Pakmor, R., Springel, V., & White, S. D. M. (2023). The MillenniumTNG Project: the large-scale clustering of galaxies. Monthly Notices of the Royal Astronomical Society, 524(2), 2579-2593. https://doi.org/10.1093/mnras/stad1097

Modern redshift surveys are tasked with mapping out the galaxy distribution over enormous distance scales. Existing hydrodynamical simulations, however, do not reach the volumes needed to match upcoming surveys. We present results for the clustering... Read More about The MillenniumTNG Project: the large-scale clustering of galaxies.

The MillenniumTNG Project: an improved two-halo model for the galaxy–halo connection of red and blue galaxies (2023)
Journal Article
Hadzhiyska, B., Eisenstein, D., Hernquist, L., Pakmor, R., Bose, S., Delgado, A. M., …Barrera, M. (2023). The MillenniumTNG Project: an improved two-halo model for the galaxy–halo connection of red and blue galaxies. Monthly Notices of the Royal Astronomical Society, 524(2), 2507–2523. https://doi.org/10.1093/mnras/stad731

Approximate methods to populate dark-matter haloes with galaxies are of great utility to galaxy surveys. However, the limitations of simple halo occupation models (HODs) preclude a full use of small-scale galaxy clustering data and call for more soph... Read More about The MillenniumTNG Project: an improved two-halo model for the galaxy–halo connection of red and blue galaxies.

The MillenniumTNG Project: refining the one-halo model of red and blue galaxies at different redshifts (2023)
Journal Article
Hadzhiyska, B., Hernquist, L., Eisenstein, D., Delgado, A. M., Bose, S., Kannan, R., …Frenk, C. (2023). The MillenniumTNG Project: refining the one-halo model of red and blue galaxies at different redshifts. Monthly Notices of the Royal Astronomical Society, 524(2), 2524–2538. https://doi.org/10.1093/mnras/stad279

Luminous red galaxies (LRGs) and blue star-forming emission-line galaxies (ELGs) are key tracers of large-scale structure used by cosmological surveys. Theoretical predictions for such data are often done via simplistic models for the galaxy–halo con... Read More about The MillenniumTNG Project: refining the one-halo model of red and blue galaxies at different redshifts.

The MillenniumTNG Project: Intrinsic alignments of galaxies and halos (2023)
Journal Article
Delgado, A. M., Hadzhiyska, B., Bose, S., Springel, V., Hernquist, L., Barrera, M., …Frenk, C. (2023). The MillenniumTNG Project: Intrinsic alignments of galaxies and halos. Monthly Notices of the Royal Astronomical Society, 523(4), 5899–5914. https://doi.org/10.1093/mnras/stad1781

The intrinsic alignment (IA) of observed galaxy shapes with the underlying cosmic web is a source of contamination in weak lensing surveys. Sensitive methods to identify the IA signal will therefore need to be included in the upcoming weak lensing an... Read More about The MillenniumTNG Project: Intrinsic alignments of galaxies and halos.

The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways (2023)
Journal Article
Bose, S., & Deason, A. J. (2023). The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways. Monthly Notices of the Royal Astronomical Society, 522(4), 5013-5021. https://doi.org/10.1093/mnras/stad1123

The stellar halo of the Milky Way records the history of its interactions with dwarf galaxies, whose subsequent destruction results in the formation of an extended stellar component. Recent works have suggested that galaxies with masses comparable to... Read More about The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways.