7 papers
From Cluster Cores to the Low-Density Field: Strong Environmental Quenching of Galaxy Star Formation at Low Redshift
Mohamed H. Abdullah, A. E. Abdelaziz, Gillian Wilson +3
We investigate how galaxy star formation activity depends on environment using a sample of 81,647 SDSS galaxies selected over and $9.7\leq\log_{10}(M_\star/h^…
From Cluster Core to Splashback: Linking Dynamical Structure to Multidimensional Galaxy Evolution in the Coma Cluster
Mohamed H. Abdullah, S. W. El-Sogheir, Gillian Wilson +2
We investigate galaxy evolution across the full dynamical structure of the Coma cluster using the GalWCat19 spectroscopic cluster catalog combined with SDSS-based value-added galax…
From the Densest Clusters to the Emptiest Voids: No Evidence For Environmental Effects on the Galaxy Size-Mass Relation at Low Redshift
Mohamed H. Abdullah, Nouran E. Abdelhamid, Rasha M. Samir +1
We present a comprehensive study of the galaxy size-stellar mass relation (SMR) at low redshift (z <= 0.125), using a large spectroscopic sample from the SDSS-DR13 survey. Our goal…
Hidden Connections: Tracing the BCG Stellar Mass-Halo Mass Relation in the SDSS-GalWCat19 Cluster Catalog
Mohamed H. Abdullah, Rasha M. Samir, Nouran E. Abdelhamid +5
The stellar-to-halo mass (SMHM) relation of brightest cluster galaxies (BCGs) provides key insight into the connection between BCG growth and the assembly of their host halos. We a…
Dynamical Properties and Velocity Dispersion-Mass Relation of Galaxy Clusters from the GOGREEN and GCLASS Surveys
Shrouk Abdulshafy, Mohamed H. Abdullah, Gillian Wilson +2
We investigate a sample of 14 galaxy clusters from the GOGREEN and GCLASS (GG) spectroscopic datasets within the redshift range and cluster masses $\mathr…
Galaxy Cluster Detection and Dynamical Analysis in the VIPERS High-Redshift Spectroscopic Survey
Mohamed H. Abdullah, Omnia I. Adly, Gillian Wilson +2
We present a dynamical analysis of galaxy clusters identified in the VIPERS spectroscopic survey within the redshift range 0.5 <= z <= 1.2. Cluster candidates were first detected a…