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An Optical Observational Cluster Mass Function at with the ORELSE Survey
D. Hung, B. C. Lemaux, R. R. Gal +11
We present a new mass function of galaxy clusters and groups using optical/near-infrared wavelength spectroscopic and photometric data from the Observations of Redshift Evolution i…
Growing up in a megalopolis: Environmental effects on galaxy evolution in a supercluster at z~0.65 in UKIDSS UDS
Audrey Galametz, Laura Pentericci, Marco Castellano +10
We present a large-scale galaxy structure Cl J021734-0513 at z~0.65 discovered in the UKIDSS UDS field, made of ~20 galaxy groups and clusters, spreading over 10 Mpc. We report on…
Type Ia Supernova Distances at z > 1.5 from the Hubble Space Telescope Multi-Cycle Treasury Programs: The Early Expansion Rate
Adam G. Riess, Steven A. Rodney, Daniel M. Scolnic +31
We present an analysis of 15 Type Ia supernovae (SNe Ia) at redshift z > 1 (9 at 1.5 < z < 2.3) recently discovered in the CANDELS and CLASH Multi-Cycle Treasury programs using WFC…
New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies
I. de Martino, C. J. A. P. Martins, H. Ebeling +1
We have constrained the spatial variation of the fine structure constant using multi-frequency measurements of the thermal Sunyaev-Zeldovich effect of 618 X-ray selected clusters.…
Constraining spatial variations of the fine structure constant using clusters of galaxies and Planck data
I. de Martino, C. J. A. P. Martins, H. Ebeling +1
We propose an improved methodology to constrain spatial variations of the fine structure constant using clusters of galaxies. We use the {\it Planck} 2013 data to measure the therm…
Ultraviolet Luminosity Density of the Universe During the Epoch of Reionization
Ketron Mitchell-Wynne, Asantha Cooray, Yan Gong +9
The spatial fluctuations of the extragalactic background light trace the total emission from all stars and galaxies in the Universe. A multi-wavelength study can be used to measure…