Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Brun, Amandine M. C. Le"'
We investigate the evolution of the dark matter density profiles of the most massive galaxy clusters in the Universe. Using a `zoom-in' procedure on a large suite of cosmological simulations of total comoving volume of $3\,(h^{-1}\,\rm Gpc)^3$, we st
Externí odkaz:
http://arxiv.org/abs/2201.07482
Autor:
Eckert, Dominique, Gaspari, Massimo, Gastaldello, Fabio, Brun, Amandine M. C. Le, O'Sullivan, Ewan
Publikováno v:
Universe vol 7, issue 5, p142, 2021
The co-evolution between supermassive black holes and their environment is most directly traced by the hot atmospheres of dark matter halos. Cooling of the hot atmosphere supplies the central regions with fresh gas, igniting active galactic nuclei (A
Externí odkaz:
http://arxiv.org/abs/2106.13259
Autor:
Schneider, Aurel, Teyssier, Romain, Stadel, Joachim, Chisari, Nora Elisa, Brun, Amandine M. C. Le, Amara, Adam, Refregier, Alexandre
Feedback processes from baryons are expected to strongly affect weak-lensing observables of current and future cosmological surveys. In this paper we present a new parametrisation of halo profiles based on gas, stellar, and dark matter density compon
Externí odkaz:
http://arxiv.org/abs/1810.08629
Publikováno v:
A&A 617, A64 (2018)
We present a detailed study of the integrated total hydrostatic mass profiles of the five most massive ($M^{\mathrm{SZ}}_{500} > 5 \times 10^{14}$ M$_{\odot}$) galaxy clusters selected at $z\sim1$ via the Sunyaev-Zel'dovich effect. These objects repr
Externí odkaz:
http://arxiv.org/abs/1803.07556
Autor:
Chisari, Nora Elisa, Richardson, Mark L. A., Devriendt, Julien, Dubois, Yohan, Schneider, Aurel, Brun, Amandine M. C. Le, Beckmann, Ricarda S., Peirani, Sebastien, Slyz, Adrianne, Pichon, Christophe
Accurate cosmology from upcoming weak lensing surveys relies on knowledge of the total matter power spectrum at percent level at scales $k < 10$ $h$/Mpc, for which modelling the impact of baryonic physics is crucial. We compare measurements of the to
Externí odkaz:
http://arxiv.org/abs/1801.08559
Autor:
Font, Andreea S., McCarthy, Ian G., Brun, Amandine M. C. Le, Crain, Robert A., Kelvin, Lee S.
[Abridged] Typical disc galaxies forming in a LambdaCDM cosmology encounter a violent environment, where they often experience mergers with massive satellites. The fact that disc galaxies are ubiquitous in the local Universe suggests that a quiescent
Externí odkaz:
http://arxiv.org/abs/1710.00415
We investigate the evolution of the dark matter density profiles of the most massive galaxy clusters in the Universe. Using a `zoom-in' procedure on a large suite of cosmological simulations of total comoving volume of $3\,(h^{-1}\,\rm Gpc)^3$, we st
Externí odkaz:
http://arxiv.org/abs/1709.07457
We use the cosmo-OWLS suite of cosmological hydrodynamical simulations to investigate the scatter and evolution of the global hot gas properties of large simulated populations of galaxy groups and clusters. Our aim is to compare the predictions of di
Externí odkaz:
http://arxiv.org/abs/1606.04545
The evolution of the large-scale distribution of matter is sensitive to a variety of fundamental parameters that characterise the dark matter, dark energy, and other aspects of our cosmological framework. Since the majority of the mass density is in
Externí odkaz:
http://arxiv.org/abs/1603.02702
The thermal Sunyaev-Zel'dovich (tSZ) effect offers a means of probing the hot gas in and around massive galaxies and galaxy groups and clusters, which is thought to constitute a large fraction of the baryon content of the Universe. The Planck collabo
Externí odkaz:
http://arxiv.org/abs/1501.05666