Results 11 to 20 of about 6,069 (215)

Accretion of galaxy groups into galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We study the role of group infall in the assembly and dynamics of galaxy clusters in ΛCDM. We select 10 clusters with virial mass M200 ∼ 1014 $\rm M_\odot$ from the cosmological hydrodynamical simulation Illustris and follow their galaxies with stellar mass M⋆ ≥ 1.5 × 108 $\rm M_\odot$.
José A Benavides   +2 more
openaire   +3 more sources

Properties of Fossil Groups of Galaxies

open access: yesUniverse, 2021
We review the formation and evolution of fossil groups and clusters from both the theoretical and the observational points of view. In the optical band, these systems are dominated by the light of the central galaxy.
J. Alfonso L. Aguerri, Stefano Zarattini
doaj   +1 more source

The Effect of Splashback on Weak Lensing Mass Estimates of Galaxy Clusters and Groups

open access: yesThe Open Journal of Astrophysics, 2023
The splashback radius of a dark matter halo, which corresponds to the first apocenter radius reached by infalling matter and substructures, has been detected around galaxy clusters using a multitude of observational methods, including weak lensing ...
Yuanyuan Zhang   +5 more
doaj   +2 more sources

Hot Atmospheres of Galaxies, Groups, and Clusters of Galaxies [PDF]

open access: yes, 2020
Accepted for publication in the book "Reviews in Frontiers of Modern Astrophysics: From Space Debris to Cosmology" (eds Kabath, Jones and Skarka; publisher Springer Nature) funded by the European Union Erasmus+ Strategic Partnership grant "Per Aspera Ad Astra Simul" 2017-1-CZ01-KA203 ...
Werner, Norbert, Mernier, François
openaire   +2 more sources

Galaxy and mass assembly (GAMA): the clustering of galaxy groups [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2021
ABSTRACT We explore the clustering of galaxy groups in the Galaxy and Mass Assembly (GAMA) survey to investigate the dependence of group bias and profile on separation scale and group mass. Due to the inherent uncertainty in estimating the group selection function, and hence the group autocorrelation function, we instead measure the ...
S D Riggs   +6 more
openaire   +3 more sources

Targeted decrease of portal hepatic pressure gradient improves ascites control after TIPS

open access: yesHepatology, EarlyView., 2022
The river diagram demonstrates that after transjugular intrahepatic portosystemic shunt insertion (TIPS) the majority of patients without ascites and 50% of the patients with ascites detectable at ultrasound, show the best response in the long term follow‐up.
Alexander Queck   +14 more
wiley   +1 more source

Janus kinase 2 inhibition by pacritinib as potential therapeutic target for liver fibrosis

open access: yesHepatology, EarlyView., 2022
Diagram of the activation of the profibrotic and procontractile Janus kinase 2 (JAK2)/Ras homolog family member A/Rho‐kinase pathway and the inhibition of phosphorylated JAK2 by pacritinib to inhibit hepatic stellate cell activity. Abstract Background and Aims Janus kinase 2 (JAK2) signaling is increased in human and experimental liver fibrosis with ...
Sandra Torres   +21 more
wiley   +1 more source

Galaxy Quenching with Mass Growth History of Galaxy Groups and Clusters: The Importance of Post-processing

open access: yesThe Astrophysical Journal, 2023
We investigate the fraction of quenched satellite galaxies in host galaxy groups and clusters using TNG300 in the IllustrisTNG cosmological magnetohydrodynamical simulations.
So-Myoung Park   +7 more
doaj   +1 more source

The Colours of Satellite Galaxies in Groups and Clusters [PDF]

open access: yes, 2008
<p>Published - <a href="/records/ch100-kw423/files/FONmnras08.pdf?download=1">FONmnras08.pdf</a></p><p>Accepted Version - <a href="/records/ch100-kw423/files/0807.0001.pdf?download=1">0807.0001.pdf</a></p>
Font, A. S.   +8 more
openaire   +3 more sources

THE ROLE OF POOR GALAXY CLUSTERS FOR STUDYING SUPERCLUSTER STRUCTURE

open access: yesOdessa Astronomical Publications, 2008
The distribution of galaxy clusters is analyzed in regions of 6 galaxy superclusters with both measured and estimated redshifts. The positions of ACO and APM galaxy clusters in the regions are compared with the positions of galaxy clusters and groups ...
E. A. Panko
doaj   +1 more source

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