Zobrazeno 1 - 10
of 240
pro vyhledávání: '"Gray, Meghan"'
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
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:
Rost, Agustín M., Nuza, Sebastián E., Stasyszyn, Federico, Kuchner, Ulrike, Hoeft, Matthias, Welker, Charlotte, Pearce, Frazer, Gray, Meghan, Knebe, Alexander, Cui, Weiguang, Yepes, Gustavo
Using cosmological simulations of galaxy cluster regions from The Three Hundred project we study the nature of gas in filaments feeding massive clusters. By stacking the diffuse material of filaments throughout the cluster sample, we measure average
Externí odkaz:
http://arxiv.org/abs/2310.12245
Autor:
Cornwell, Daniel J., Kuchner, Ulrike, Gray, Meghan E., Aragón-Salamanca, Alfonso, Pearce, Frazer R., Cui, Weiguang, Knebe, Alexander
We investigate the efficacy of using the cosmic web nodes identified by the DisPerSE topological filament finder to systematically identify galaxy groups in the infall regions around massive clusters. The large random motions and infall velocities of
Externí odkaz:
http://arxiv.org/abs/2310.11268
Autor:
Cornwell, Daniel J., Aragón-Salamanca, Alfonso, Kuchner, Ulrike, Gray, Meghan E., Pearce, Frazer R., Knebe, Alexander
Upcoming wide-field spectroscopic surveys will observe galaxies in a range of cosmic web environments in and around galaxy clusters. In this paper, we test and quantify how successfully we will be able to identify the environment of individual galaxi
Externí odkaz:
http://arxiv.org/abs/2306.13392
Autor:
Contreras-Santos, Ana, Knebe, Alexander, Cui, Weiguang, Haggar, Roan, Pearce, Frazer, Gray, Meghan, De Petris, Marco, Yepes, Gustavo
Using the data set of The Three Hundred project, i.e. 324 hydrodynamical resimulations of cluster-sized haloes and the regions of radius 15 $h^{-1}$Mpc around them, we study galaxy pairs in high-density environments. By projecting the galaxies' 3D co
Externí odkaz:
http://arxiv.org/abs/2304.08898
Autor:
Hough, Tomás, Cora, Sofía A., Haggar, Roan, Vega-Martínez, Cristian, Kuchner, Ulrike, Pearce, Frazer, Gray, Meghan, Knebe, Alexander, Yepes, Gustavo
In this work, we combine the semi-analytic model of galaxy formation and evolution SAG with the $102$ relaxed simulated galaxy clusters from The Three Hundred project, and we study the link between the quenching of star formation (SF) and the physica
Externí odkaz:
http://arxiv.org/abs/2211.04485
Autor:
Haggar, Roan, Kuchner, Ulrike, Gray, Meghan E., Pearce, Frazer R., Knebe, Alexander, Yepes, Gustavo, Cui, Weiguang
Galaxy clusters grow by accreting galaxies as individual objects, or as members of a galaxy group. These groups can strongly impact galaxy evolution, stripping the gas from galaxies, and enhancing the rate of galaxy mergers. However, it is not clear
Externí odkaz:
http://arxiv.org/abs/2209.13604
Autor:
Cornwell, Daniel J., Kuchner, Ulrike, Aragón-Salamanca, Alfonso, Gray, Meghan E., Pearce, Frazer R., Aguerri, J. Alfonso L., Cui, Weiguang, Méndez-Abreu, J., de Arriba, Luis Peralta, Trager, Scott C.
Next-generation wide-field spectroscopic surveys will observe the infall regions around large numbers of galaxy clusters with high sampling rates for the first time. Here we assess the feasibility of extracting the large-scale cosmic web around clust
Externí odkaz:
http://arxiv.org/abs/2209.13473
Autor:
Contreras-Santos, Ana, Knebe, Alexander, Cui, Weiguang, Haggar, Roan, Pearce, Frazer, Gray, Meghan, De Petris, Marco, Yepes, Gustavo
Close pairs of galaxies have been broadly studied in the literature as a way to understand galaxy interactions and mergers. In observations they are usually defined by setting a maximum separation in the sky and in velocity along the line of sight, a
Externí odkaz:
http://arxiv.org/abs/2207.13451