Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Aricò, Giovanni"'
Autor:
Aricò, Giovanni, Angulo, Raul E.
Baryonification algorithms model the impact of galaxy formation and feedback on the matter field in gravity-only simulations by adopting physically motivated parametric prescriptions. In this paper, we extend these models to describe gas temperature
Externí odkaz:
http://arxiv.org/abs/2406.01672
Publikováno v:
JCAP08(2024)024
We present a cosmological analysis of the combination of the DES-Y3, KiDS-1000 and HSC-DR1 weak lensing samples under a joint harmonic-space pipeline making use of angular scales down to $\ell_{\rm max}=4500$, corresponding to significantly smaller s
Externí odkaz:
http://arxiv.org/abs/2403.13794
The redistribution of baryonic matter in massive halos through processes like active galactic nuclei feedback and star formation leads to a suppression of the matter power spectrum on small scales. This redistribution can be measured empirically via
Externí odkaz:
http://arxiv.org/abs/2309.02920
Autor:
Aricò, Giovanni, Angulo, Raul E., Zennaro, Matteo, Contreras, Sergio, Chen, Angela, Hernández-Monteagudo, Carlos
Publikováno v:
A&A 678, A109 (2023)
We present the first analysis of cosmic shear measured in DES Y3 that employs the entire range of angular scales in the data. To achieve this, we build upon recent advances in the theoretical modelling of weak lensing provided by a combination of $N$
Externí odkaz:
http://arxiv.org/abs/2303.05537
Autor:
Contreras, Sergio, Angulo, Raul E., Chaves-Montero, Jonás, White, Simon D. M., Aricò, Giovanni
The spatial distribution of galaxies and their gravitational lensing signal offer complementary tests of galaxy formation physics and cosmology. However, their synergy can only be fully exploited if both probes are modelled accurately and consistentl
Externí odkaz:
http://arxiv.org/abs/2211.11745
Autor:
Pellejero-Ibanez, Marcos, Angulo, Raul E., Zennaro, Matteo, Stuecker, Jens, Contreras, Sergio, Arico, Giovanni, Maion, Francisco
We present an emulator that accurately predicts the power spectrum of galaxies in redshift space as a function of cosmological parameters. Our emulator is based on a 2nd-order Lagrangian bias expansion that is displaced to Eulerian space using cosmol
Externí odkaz:
http://arxiv.org/abs/2207.06437
Autor:
Pellejero-Ibanez, Marcos, Stuecker, Jens, Angulo, Raul E., Zennaro, Matteo, Contreras, Sergio, Arico, Giovanni
Improving the theoretical description of galaxy clustering on small scales is an important challenge in cosmology, as it can considerably increase the scientific return of forthcoming galaxy surveys -- e.g. tightening the bounds on neutrino masses an
Externí odkaz:
http://arxiv.org/abs/2109.08699
The linear matter power spectrum is an essential ingredient in all theoretical models for interpreting large-scale-structure observables. Although Boltzmann codes such as CLASS or CAMB are very efficient at computing the linear spectrum, the analysis
Externí odkaz:
http://arxiv.org/abs/2104.14568
The abundance of dark matter haloes is one of the key probes of the growth of structure and expansion history of the Universe. Theoretical predictions for this quantity usually assume that, when expressed in a certain form, it depends only on the mas
Externí odkaz:
http://arxiv.org/abs/2102.08958
Autor:
Zennaro, Matteo, Angulo, Raul E., Pellejero-Ibáñez, Marcos, Stücker, Jens, Contreras, Sergio, Aricò, Giovanni
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 524, Issue 2, pp.2407-2419, 2023
We present an emulator for the two-point clustering of biased tracers in real space. We construct this emulator using neural networks calibrated with more than $400$ cosmological models in a 8-dimensional cosmological parameter space that includes ma
Externí odkaz:
http://arxiv.org/abs/2101.12187