96 citations · 273 across the 22 of their papers we have counts for
23 papers
Surveying the Universe in 4D: Beating Cosmic Variance with Wide-Field Slitless Spectroscopy from HST, JWST, Euclid, Roman, and Beyond
Andreea Petric, Gaël Noirot, Stacey Alberts +71
We summarize strategies, lessons learned, and future directions from the Space Telescope Science Institute workshop Surveying the Universe in 4D: Beating Cosmic Variance with Wide-…
The GOGREEN Survey: AI Powered Deconvolution Lifts The Veil on Outside-in Environmental Quenching at z > 1
Aurelien Henry, Gillian Wilson, Gregory Rudnick +10
A powerful probe of the physical processes that quench star formation in dense environments is determining where within galaxies star formation is suppressed. At high redshift, the…
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 $9.7\leq\log_{10}(M_\star/h^…
From Cluster Core to Splashback: Linking Dynamical Structure to Multidimensional Galaxy Evolution in the Coma Cluster
Mohamed H. Abdullah, S. W. El-Sogheir, Gillian Wilson +2
We investigate galaxy evolution across the full dynamical structure of the Coma cluster using the GalWCat19 spectroscopic cluster catalog combined with SDSS-based value-added galax…
LoVoCCS. III. Third Generation Pipeline & The Hercules Supercluster
Anthony M. Englert, Shenming Fu, Ian Dell'Antonio +29
The Local Volume Complete Cluster Survey (LoVoCCS) is a volume-complete survey of over one-hundred nearby (), X-ray luminous ($L_{500} > 10^{44} \text{ erg s}^{-1}…
Inferring Halo Mass and Scale Radius of Galaxy Clusters Using Convolutional Neural Networks and Uchuu-UniverseMachine Catalogs
Hirobumi Tominaga, Asuka Nakamura, Tomoaki Ishiyama +1
We investigate the ability of machine learning to infer the virial mass () and the scale radius () of galaxy clusters from their observables. Using the Uchu…
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…
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…
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…
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…
Quantifying the Velocity Anisotropy Profile of Galaxy Clusters Using the Uchuu Cosmological Simulation
Mohamed H. Abdullah, Raouf H. Mabrouk, Tomoaki Ishiyama +2
Galaxy clusters are powerful laboratories for studying both cosmic structure formation and galaxy evolution. We present a comprehensive analysis of the velocity anisotropy profile,…
The Correlation Function and Detection of Baryon Acoustic Oscillation Peak from the Spectroscopic SDSS GalWCat Galaxy Cluster Catalogue
Mohamed H. Abdullah, Anatoly Klypin, Francisco Prada +3
We measure the two point correlation function (CF) of 1357 galaxy clusters with a mass of ~\hm~and at a redshift of . This work differs f…
The Cluster Mass Function and the -tension
Alexandros Papageorgiou, Manolis Plionis, Spyros Basilakos +1
We use a large set of halo mass function (HMF) models in order to investigate their ability to represent the observational Cluster Mass Function (CMF), derived from the $\mathtt{Ga…
Constraining Cosmological Parameters using the Cluster Mass-Richness Relation
Mohamed H. Abdullah, Gillian Wilson, Anatoly Klypin +1
The cluster mass-richness relation (MRR) is an observationally efficient and potentially powerful cosmological tool for constraining the mean matter density of the universe and the…
The Uchuu-UniverseMachine dataset: Galaxies in and around Clusters
Han Aung, Daisuke Nagai, Anatoly Klypin +7
We present the public data release of the Uchuu-UM galaxy catalogues by applying the UniverseMachine algorithm to assign galaxies to the dark matter halos in the Uchuu -body cos…
The Uchuu-SDSS galaxy lightcones: a clustering, RSD and BAO study
C. A. Dong-Páez, A. Smith, A. O. Szewciw +11
We present the data release of the Uchuu-SDSS galaxies: a set of 32 high-fidelity galaxy lightcones constructed from the large Uchuu 2.1 trillion particle -body simulation using…
Spectroscopic Confirmation of a Protocluster at with a High Fraction of Quiescent Galaxies
Ian McConachie, Gillian Wilson, Ben Forrest +10
We report the discovery of MAGAZ3NE J095924+022537, a spectroscopically-confirmed protocluster at around a spectroscopically-confirmed -quiesc…
Cosmological Constraint on and from Cluster Abundances using the Optical-Spectroscopic SDSS Catalog
Mohamed H. Abdullah, Anatoly Klypin, Gillian Wilson
We derive cosmological constraints on the matter density, \om, and the amplitude of fluctuations, \sig, using , a catalog of 1800 galaxy clusters we identified…
The Rest-frame -band Luminosity Function of Red Sequence Galaxies in Clusters at
Jeffrey C. C. Chan, Gillian Wilson, Gregory Rudnick +22
We present results on the rest-frame -band luminosity functions (LF) of red sequence galaxies in seven clusters at 1.0 < z < 1.3 from the Gemini Observations of Galaxies in Rich…
GalWeight Application: A publicly-available catalog of dynamical parameters of 1,800 galaxy clusters from SDSS-DR13, ()
Mohamed H. Abdullah, Gillian Wilson, Anatoly Klypin +3
Utilizing the SDSS-DR13 spectroscopic dataset, we create a new publicly-available catalog of 1,800 galaxy clusters (GalWeight cluster catalog, ) and a correspon…
GalWeight: A New and Effective Weighting Technique for Determining Galaxy Cluster and Group Membership
Mohamed H. Abdullah, Gillian Wilson, Anatoly Klypin
We introduce GalWeight, a new technique for assigning galaxy cluster membership. This technique is specifically designed to simultaneously maximize the number of bona fide cluster…
Distortion of Infall Regions in Redshift Space-I
Mohamed H. Abdullah, Elizabeth A. Praton, Gamal B. Ali
We show that spherical infall models (SIMs) can better describe some galaxy clusters in redshift slice space than in traditional axially-convolved projection space. This is because…
Studying the Dynamical Properties of 20 Nearby Galaxy Clusters
Mohamed H. Abdullah, Gamal B. Ali, H. A. Ismail +1
Using SDSS-DR7, we construct a sample of 42382 galaxies with redshifts in the region of 20 galaxy clusters. Using two successive iterative methods, the adaptive kernel method and t…