Zobrazeno 1 - 10
of 9 371
pro vyhledávání: '"Massive Neutrinos"'
We study the robustness of the Baryon Acoustic Oscillation (BAO) feature in galaxy clustering in the presence of massive neutrinos. In the standard BAO analysis pipeline a reference cosmological model is assumed to boost the BAO peak through the so-c
Externí odkaz:
http://arxiv.org/abs/2410.01897
Autor:
Loverde, Marilena, Weiner, Zachary J.
Cosmological data probe massive neutrinos via their effects on the geometry of the Universe and the growth of structure, both of which are degenerate with the late-time expansion history. We clarify the nature of these degeneracies and the individual
Externí odkaz:
http://arxiv.org/abs/2410.00090
Autor:
Sui, Ce, Bartlett, Deaglan J., Pandey, Shivam, Desmond, Harry, Ferreira, Pedro G., Wandelt, Benjamin D.
Current and future large scale structure surveys aim to constrain the neutrino mass and the equation of state of dark energy. We aim to construct accurate and interpretable symbolic approximations to the linear and nonlinear matter power spectra as a
Externí odkaz:
http://arxiv.org/abs/2410.14623
Recent work has highlighted the potentially detectable gravitational-lensing effect of neutrino halos on cosmic-microwave-background (CMB) fluctuations with upcoming instruments like SO, CMB-S4, and CMB-HD. Accurate modeling of neutrino-halo density
Externí odkaz:
http://arxiv.org/abs/2410.08267
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
Baryonic Acoustic Oscillation (BAO) data from the Dark Energy Spectroscopic Instrument (DESI), in combination with Cosmic Microwave Background (CMB) data and Type Ia Supernovae (SN) luminosity distances, suggests a dynamical evolution of the dark ene
Externí odkaz:
http://arxiv.org/abs/2408.14628
Frequentist parameter inference using profile likelihoods has received increased attention in the cosmology literature recently since it can give important complementary information to Bayesian credible intervals. Here, we give a pedagogical review t
Externí odkaz:
http://arxiv.org/abs/2408.07700
Studying the structures (halos and galaxies) within the cosmic environments (void, sheet, filament, and node) where they reside is an ongoing attempt in cosmological studies. The link between the properties of structures and the cosmic environments m
Externí odkaz:
http://arxiv.org/abs/2407.18233