Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Pearce, Frazer R"'
Autor:
Brown, Harley J., Martin, Garreth, Pearce, Frazer R., Hatch, Nina A., Bahé, Yannick M., Dubois, Yohan
The diffuse stellar component of galaxy clusters made up of intergalactic stars is termed the intracluster light (ICL). Though there is a developing understanding of the mechanisms by which the ICL is formed, no strong consensus has yet been reached
Externí odkaz:
http://arxiv.org/abs/2409.10607
Autor:
Contreras-Santos, Ana, Buitrago, Fernando, Knebe, Alexander, Rasia, Elena, Pearce, Frazer R., Cui, Weiguang, Power, Chris, Winstanley, Jordan
The observation of a massive galaxy with an extremely low dark matter content (i.e. NGC 1277) has posed questions about how such objects form and evolve in a hierarchical universe. We here report on the finding of several massive, dark matter-deficie
Externí odkaz:
http://arxiv.org/abs/2409.10356
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
We compare the L-Galaxies semi-analytic model to deep observational data from the UKIDSS Ultra Deep Survey (UDS) across the redshift range $0.5 < z < 3$. We find that the over-abundance of low-mass, passive galaxies at high redshifts in the model can
Externí odkaz:
http://arxiv.org/abs/2405.06018
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:
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:
Kuchner, Ulrike, Haggar, Roan, Aragón-Salamanca, Alfonso, Pearce, Frazer R., Gray, Meghan E., Rost, Agustín, Cui, Weiguang, Knebe, Alexander, Yepes, Gustavo
Galaxy clusters grow by accreting galaxies from the field and along filaments of the cosmic web. As galaxies are accreted they are affected by their local environment before they enter (pre-processing), and traverse the cluster potential. Observation
Externí odkaz:
http://arxiv.org/abs/2111.11467