Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Hernández-Aguayo, César"'
Autor:
Sorini, Daniele, Bose, Sownak, Pakmor, Rüdiger, Hernquist, Lars, Springel, Volker, Hadzhiyska, Boryana, Hernández-Aguayo, César, Kannan, Rahul
We investigate the redshift evolution of the concentration-mass relationship of dark matter haloes in state-of-the-art cosmological hydrodynamic simulations and their dark-matter-only counterparts. By combining the IllustrisTNG suite and the novel Mi
Externí odkaz:
http://arxiv.org/abs/2409.01758
Autor:
Hernández-Aguayo, César, Springel, Volker, Bose, Sownak, Frenk, Carlos, Jenkins, Adrian, Barrera, Monica, Ferlito, Fulvio, Pakmor, Rüdiger, White, Simon D. M., Hernquist, Lars, Delgado, Ana Maria, Kannan, Rahul, Hadzhiyska, Boryana
We discuss the cold dark matter plus massive neutrinos simulations of the MillenniumTNG (MTNG) project, which aim to improve understanding of how well ongoing and future large-scale galaxy surveys will measure neutrino masses. Our largest simulations
Externí odkaz:
http://arxiv.org/abs/2407.21103
The statistical analysis of cosmic large-scale structure is most often based on simple two-point summary statistics, like the power spectrum or the two-point correlation function of a sample of galaxies or other types of tracers. In contrast, topolog
Externí odkaz:
http://arxiv.org/abs/2407.02574
Autor:
Bose, Benjamin, Gupta, Ashim Sen, Fiorini, Bartolomeo, Brando, Guilherme, Hassani, Farbod, Baker, Tessa, Lombriser, Lucas, Li, Baojiu, Ruan, Cheng-Zong, Hernandez-Aguayo, Cesar, Atayde, Luis, Frusciante, Noemi
Testing gravity and the concordance model of cosmology, $\Lambda$CDM, at large scales is a key goal of this decade's largest galaxy surveys. Here we present a comparative study of dark matter power spectrum predictions from different numerical codes
Externí odkaz:
http://arxiv.org/abs/2406.13667
Autor:
Davies, Christopher T., Harnois-Déraps, Joachim, Li, Baojiu, Giblin, Benjamin, Hernández-Aguayo, César, Paillas, Enrique
It is well established that maximizing the information extracted from upcoming and ongoing stage-IV weak-lensing surveys requires higher-order summary statistics that complement the standard two-point statistics. In this work, we focus on weak-lensin
Externí odkaz:
http://arxiv.org/abs/2406.11958
Ray-tracing vs. Born approximation in full-sky weak lensing simulations of the MillenniumTNG project
Autor:
Ferlito, Fulvio, Davies, Christopher T., Springel, Volker, Reinecke, Martin, Greco, Alessandro, Delgado, Ana Maria, White, Simon D. M., Hernández-Aguayo, César, Bose, Sownak, Hernquist, Lars
Weak gravitational lensing is a powerful tool for precision tests of cosmology. As the expected deflection angles are small, predictions based on non-linear N-body simulations are commonly computed with the Born approximation. Here we examine this as
Externí odkaz:
http://arxiv.org/abs/2406.08540
Autor:
Wang, Wei, Wang, Peng, Guo, Hong, Kang, Xi, Libeskind, Noam I., Galarraga-Espinosa, Daniela, Springel, Volker, Kannan, Rahul, Hernquist, Lars, Pakmor, Rudiger, Yu, Haoran, Bose, Sownak, Guo, Quan, Yu, Luo, Hernandez-Aguayo, Cesar
For decades, the boundary of cosmic filaments have been a subject of debate. In this work, we determine the physically-motivated radii of filaments by constructing stacked galaxy number density profiles around the filament spines. We find that the sl
Externí odkaz:
http://arxiv.org/abs/2402.11678
Autor:
Stevens, Adam R. H., Sinha, Manodeep, Rohl, Alexander, Sammons, Mawson W., Hadzhiyska, Boryana, Hernández-Aguayo, César, Hernquist, Lars
Publikováno v:
PASA, 2024
After more than five years of development, we present a new version of Dark Sage, a semi-analytic model (SAM) of galaxy formation that breaks the mould for models of its kind. Included among the major changes is an overhauled treatment of stellar fee
Externí odkaz:
http://arxiv.org/abs/2312.04137
Autor:
Ereza, Julia, Prada, Francisco, Klypin, Anatoly, Ishiyama, Tomoaki, Smith, Alex, Baugh, Carlton M., Li, Baojiu, Hernández-Aguayo, César, Ruedas, José
Publikováno v:
Monthly Notices of the Royal Astronomical Society, stae1543 (2024)
This study investigates the clustering and bias of Luminous Red Galaxies (LRG) in the BOSS-LOWZ, -CMASS, -COMB, and eBOSS samples, using two types of simulated lightcones: (i) high-fidelity lightcones from Uchuu $N$-body simulation, employing SHAM te
Externí odkaz:
http://arxiv.org/abs/2311.14456
Autor:
Pallero, Diego, Gómez, Facundo A., Padilla, Nelson D., Jaffé, Yara L., Baugh, Carlton M., Li, Baojiu, Hernández-Aguayo, César, Arnold, Christian
We present a quantitative analysis of the properties of galaxies and structures evolving in universes dominated by different modified gravitational models, including two variants of the f(R)-gravity (F) and two of the Dvali-Gabdadze-Poratti (N) brane
Externí odkaz:
http://arxiv.org/abs/2310.02333