Zobrazeno 1 - 10
of 410
pro vyhledávání: '"Cui, Weiguang"'
We investigate the role of the Simba feedback model on the structure of the Intra-Group Medium (IGrM) in the new Hyenas suite of cutting-edge cosmological zoom-in simulations. Using 34 high-resolution zooms of halos spanning from $10^{13}-10^{14}$ $M
Externí odkaz:
http://arxiv.org/abs/2407.14415
Galaxy groups contain the majority of bound mass with a significant portion of baryons due to the combination of halo mass and abundance (Cui 2024). Hence they serve as a crucial missing piece in the puzzle of galaxy formation and the evolution of la
Externí odkaz:
http://arxiv.org/abs/2406.17012
We present machine learning (ML)-based pipelines designed to populate galaxies into dark matter halos from N-body simulations. These pipelines predict galaxy stellar mass ($M_*$), star formation rate (SFR), atomic and molecular gas contents, and meta
Externí odkaz:
http://arxiv.org/abs/2406.16103
Autor:
Haggar, Roan, De Luca, Federico, De Petris, Marco, Sazonova, Elizaveta, Taylor, James E., Knebe, Alexander, Gray, Meghan E., Pearce, Frazer R., Contreras-Santos, Ana, Cui, Weiguang, Kuchner, Ulrike, Paun, Robert A. Mostoghiu, Power, Chris
Numerous metrics exist to quantify the dynamical state of galaxy clusters, both observationally and within simulations. Many of these correlate strongly with one another, but it is not clear whether all of these measures probe the same intrinsic prop
Externí odkaz:
http://arxiv.org/abs/2406.15555
Autor:
Hough, Renier T., Shao, Zhiwei, Cui, Weiguang, Loubser, S. Ilani, Babul, Arif, Davé, Romeel, Rennehan, Douglas, Kobayashi, Chiaki
The newly updated \texttt{GIZMO} and \texttt{Simba} based simulation, \texttt{Simba-C}, with its new stellar feedback, chemical enrichment, and recalibrated AGN feedback, allows for a detailed study of the intragroup medium X-ray properties. We discu
Externí odkaz:
http://arxiv.org/abs/2406.04761
Autor:
Cui, Weiguang
As a common gravitation virialized object in the standard $\Lambda$CDM cosmology, dark matter halo connects from the large-scale structure all the way down to galaxy and star formation. However, as the nature of dark matter particles is still unclear
Externí odkaz:
http://arxiv.org/abs/2406.03829
The Three Hundred project: Estimating the dependence of gas filaments on the mass of galaxy clusters
Autor:
Santoni, Sara, De Petris, Marco, Yepes, Gustavo, Ferragamo, Antonio, Bianconi, Matteo, Gray, Meghan E., Kuchner, Ulrike, Pearce, Frazer R., Cui, Weiguang, Ettori, Stefano
Galaxy clusters are located in the densest areas of the universe and are intricately connected to larger structures through the filamentary network of the Cosmic Web. In this scenario, matter flows from areas of lower density to higher density. As a
Externí odkaz:
http://arxiv.org/abs/2405.17239
Autor:
de Andres, Daniel, Cui, Weiguang, Yepes, Gustavo, De Petris, Marco, Aversano, Gianmarco, Ferragamo, Antonio, De Luca, Federico, Muñoz, A. Jiménez
Galaxy clusters are composed of dark matter, gas and stars. Their dark matter component, which amounts to around 80\% of the total mass, cannot be directly observed but traced by the distribution of diffused gas and galaxy members. In this work, we a
Externí odkaz:
http://arxiv.org/abs/2404.05400
Publikováno v:
The Astrophysical Journal (2024)
The main systematics in cluster cosmology is the uncertainty in the mass-observable relation. In this paper, we focus on the most direct cluster observable in optical surveys, i.e. richness, and constrain the intrinsic mass-richness (MR) relation of
Externí odkaz:
http://arxiv.org/abs/2404.00321
Autor:
Arendt, Ashleigh R., Perrott, Yvette C., Contreras-Santos, Ana, de Andres, Daniel, Cui, Weiguang, Rennehan, Douglas
We present a novel approach to identify galaxy clusters that are undergoing a merger using a deep learning approach. This paper uses massive galaxy clusters spanning $0 \leq z \leq 2$ from \textsc{The Three Hundred} project, a suite of hydrodynamic r
Externí odkaz:
http://arxiv.org/abs/2403.09273