Zobrazeno 1 - 10
of 416
pro vyhledávání: '"Villaescusa-Navarro, Francisco"'
Whilst current observational evidence favors a close-to-Gaussian spectrum of primordial perturbations, there exist many models of the early Universe that predict this distribution to have exponentially enhanced or suppressed tails. In this work, we g
Externí odkaz:
http://arxiv.org/abs/2406.15546
We train a novel deep learning architecture to perform likelihood-free inference on the value of the cosmological parameters from halo catalogs of the Quijote N-body simulations. Our model takes as input a halo catalog where each halo is characterize
Externí odkaz:
http://arxiv.org/abs/2405.13119
Autor:
Flöss, Thomas, Coulton, William R., Duivenvoorden, Adriaan J., Villaescusa-Navarro, Francisco, Wandelt, Benjamin D.
Optimal extraction of cosmological information from observations of the Cosmic Microwave Background critically relies on our ability to accurately undo the distortions caused by weak gravitational lensing. In this work, we demonstrate the use of deno
Externí odkaz:
http://arxiv.org/abs/2405.05598
Autor:
Rose, Jonah C., Torrey, Paul, Villaescusa-Navarro, Francisco, Lisanti, Mariangela, Nguyen, Tri, Roy, Sandip, Kollmann, Kassidy E., Vogelsberger, Mark, Cyr-Racine, Francis-Yan, Medvedev, Mikhail V., Genel, Shy, Anglés-Alcázar, Daniel, Kallivayalil, Nitya, Wang, Bonny Y., Costanza, Belén, O'Neil, Stephanie, Roche, Cian, Karmakar, Soumyodipta, Garcia, Alex M., Low, Ryan, Lin, Shurui, Mostow, Olivia, Cruz, Akaxia, Caputo, Andrea, Farahi, Arya, Muñoz, Julian B., Necib, Lina, Teyssier, Romain, Dalcanton, Julianne J., Spergel, David
We introduce the DREAMS project, an innovative approach to understanding the astrophysical implications of alternative dark matter models and their effects on galaxy formation and evolution. The DREAMS project will ultimately comprise thousands of co
Externí odkaz:
http://arxiv.org/abs/2405.00766
Autor:
Ono, Victoria, Park, Core Francisco, Mudur, Nayantara, Ni, Yueying, Cuesta-Lazaro, Carolina, Villaescusa-Navarro, Francisco
Galaxies are biased tracers of the underlying cosmic web, which is dominated by dark matter components that cannot be directly observed. Galaxy formation simulations can be used to study the relationship between dark matter density fields and galaxy
Externí odkaz:
http://arxiv.org/abs/2403.10648
Autor:
Lee, Max E., Genel, Shy, Wandelt, Benjamin D., Zhang, Benjamin, Delgado, Ana Maria, Pandey, Shivam, Lau, Erwin T., Carr, Christopher, Cook, Harrison, Nagai, Daisuke, Angles-Alcazar, Daniel, Villaescusa-Navarro, Francisco, Bryan, Greg L.
Galaxy formation models within cosmological hydrodynamical simulations contain numerous parameters with non-trivial influences over the resulting properties of simulated cosmic structures and galaxy populations. It is computationally challenging to s
Externí odkaz:
http://arxiv.org/abs/2403.10609
Autor:
Medlock, Isabel, Nagai, Daisuke, Singh, Priyanka, Oppenheimer, Benjamin, Alcázar, Daniel Anglés, Villaescusa-Navarro, Francisco
Most diffuse baryons, including the circumgalactic medium (CGM) surrounding galaxies and the intergalactic medium (IGM) in the cosmic web, remain unmeasured and unconstrained. Fast Radio Bursts (FRBs) offer an unparalleled method to measure the elect
Externí odkaz:
http://arxiv.org/abs/2403.02313
Autor:
Jung, Gabriel, Ravenni, Andrea, Liguori, Michele, Baldi, Marco, Coulton, William R., Villaescusa-Navarro, Francisco, Wandelt, Benjamin D.
We apply a suite of different estimators to the Quijote-PNG halo catalogues to find the best approach to constrain Primordial non-Gaussianity (PNG) at non-linear cosmological scales, up to $k_{\rm max} = 0.5 \, h\,{\rm Mpc}^{-1}$. The set of summary
Externí odkaz:
http://arxiv.org/abs/2403.00490
We demonstrate the use of deep network to learn the distribution of data from state-of-the-art hydrodynamic simulations of the CAMELS project. To this end, we train a generative adversarial network to generate images composed of three different chann
Externí odkaz:
http://arxiv.org/abs/2402.10997
Autor:
Lin, Shurui, Villaescusa-Navarro, Francisco, Rose, Jonah, Torrey, Paul, Farahi, Arya, Kollmann, Kassidy E., Garcia, Alex M., Roy, Sandip, Kallivayalil, Nitya, Vogelsberger, Mark, Cai, Yi-Fu, Luo, Wentao
We study the impact of warm dark matter mass on the internal properties of individual galaxies using a large suite of 1,024 state-of-the-art cosmological hydrodynamic simulations from the DREAMS project. We take individual galaxies' properties from t
Externí odkaz:
http://arxiv.org/abs/2401.17940