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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 GOGREEN survey: the internal dynamics of clusters of galaxies at redshift 0.9-1.4
A. Biviano, R. F. J. van der Burg, M. L. Balogh +20
We aim to determine the mass, velocity anisotropy, and pseudo phase-space density profiles (M(r), beta(r), and Q(r), respectively) of clusters of galaxies at the highest redshifts…
The HST See Change Program: I. Survey Design, Pipeline, and Supernova Discoveries
Brian Hayden, David Rubin, Kyle Boone +53
The See Change survey was designed to make cosmological measurements by efficiently discovering high-redshift Type Ia supernovae (SNe Ia) and improving cluster mass measureme…
Constraining the Mass of the Emerging Galaxy Cluster SpARCS1049+56 at z=1.71 with Infrared Weak Lensing
Kyle Finner, M. James Jee, Tracy Webb +4
In the hierarchical structure formation model of the universe, galaxy clusters are assembled through a series of mergers. Accordingly, it is expected that galaxy clusters in the ea…
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…
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…
X-ray versus infrared selection of distant galaxy clusters: A case study using the XMM-LSS and SpARCS cluster samples
J. P. Willis, M. E. Ramos-Ceja, A. Muzzin +3
We present a comparison of two samples of z>0.8 galaxy clusters selected using different wavelength-dependent techniques and examine the physical differences between them. We consi…
Weak lensing magnification of SpARCS galaxy clusters
A. Tudorica, H. Hildebrandt, M. Tewes +11
Measuring and calibrating relations between cluster observables is critical for resource-limited studies. The mass-richness relation of clusters offers an observationally inexpensi…
The dynamics of z~1 clusters of galaxies from the GCLASS survey
A. Biviano, R. F. J. van der Burg, A. Muzzin +3
We constrain the internal dynamics of a stack of 10 clusters from the GCLASS survey at 0.87<z<1.34. We determine the stack cluster mass profile M(r) using the MAMPOSSt algorithm of…
A Census of Stellar Mass in 10 Massive Haloes at z~1 from the GCLASS Survey
Remco F. J. van der Burg, Adam Muzzin, Henk Hoekstra +3
We study the stellar mass content of massive haloes in the redshift range 0.86<z<1.34, by measuring: (1) The stellar mass in the central galaxy versus total dynamical halo mass. (2…
The importance of major mergers in the build up of stellar mass in brightest cluster galaxies at z=1
C. Lidman, G. Iacobuta, A. E. Bauer +22
Recent independent results from numerical simulations and observations have shown that brightest cluster galaxies (BCGs) have increased their stellar mass by a factor of almost two…
The Evolution of Dusty Star formation in Galaxy Clusters to z = 1: Spitzer IR Observations of the First Red-Sequence Cluster Survey
Tracy Webb, Daniel O'Donnell, Howard K. C. Yee +10
We present an IR study of high-redshift galaxy clusters with the MIPS camera on the Spitzer Space Telescope. Employing a sample of 42 clusters from the RCS-1 over the redshift rang…
The environmental dependence of the stellar mass function at z~1: Comparing cluster and field between the GCLASS and UltraVISTA surveys
Remco F. J. van der Burg, Adam Muzzin, Henk Hoekstra +9
We present the stellar mass functions (SMFs) of star-forming and quiescent galaxies from observations of 10 rich clusters in the Gemini Cluster Astrophysics Spectroscopic Survey (G…
Discovery of a Rich Cluster at z = 1.63 using the Rest-Frame 1.6um "Stellar Bump Sequence" Method
Adam Muzzin, Gillian Wilson, Ricardo Demarco +5
We present a new two-color algorithm, the "Stellar Bump Sequence" (SBS), that is optimized for robustly identifying candidate high-redshift galaxy clusters in combined wide-field o…
Evidence for Significant Growth in the Stellar Mass of Brightest Cluster Galaxies over the Past 10 Billion Years
C. Lidman, J. Suherli, A. Muzzin +17
Using new and published data, we construct a sample of 160 brightest cluster galaxies (BCGs) spanning the redshift interval 0.03 < z < 1.63. We use this sample, which covers 70% of…
The Gemini Cluster Astrophysics Spectroscopic Survey (GCLASS): The Role of Environment and Self-Regulation in Galaxy Evolution at z ~ 1
Adam Muzzin, Gillian Wilson, H. K. C. Yee +15
We evaluate the effects of environment and stellar mass on galaxy properties at 0.85 < z < 1.20 using a 3.6um-selected spectroscopic sample of 797 cluster and field galaxies drawn…
Lensing Magnification: A novel method to weigh high-redshift clusters and its application to SpARCS
Hendrik Hildebrandt, Adam Muzzin, Thomas Erben +6
We introduce a novel method to measure the masses of galaxy clusters at high redshift selected from optical and IR Spitzer data via the red-sequence technique. Lyman-break galaxies…
Spectroscopic Confirmation of Three Red-Sequence Selected Galaxy Clusters at z=0.87, 1.16 and 1.21 from the SpARCS Survey
Ricardo Demarco, Gillian Wilson, Adam Muzzin +6
The Spitzer Adaptation of the Red-sequence Cluster Survey (SpARCS) is a z'-passband imaging survey of the 50 deg^2 Spitzer SWIRE Legacy fields, designed with the primary aim of cre…