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Open AccessJournal ArticleDOI

A MaxBCG Catalog of 13,823 Galaxy Clusters from the Sloan Digital Sky Survey

TLDR
In this article, a catalog of galaxy clusters selected using the maxBCG redsequence method from the Sloan Digital Sky Survey photometric data is presented, which includes 13,823 clusters with velocity dispersions greater than 400 km/s.
Abstract
We present a catalog of galaxy clusters selected using the maxBCG redsequence method from Sloan Digital Sky Survey photometric data. This catalog includes 13,823 clusters with velocity dispersions greater than 400 km/s, and is the largest galaxy cluster catalog assembled to date. They are selected in an approximately volume-limited way from a 0.5 Gpc^3 region covering 7500 square degrees of sky between redshifts 0.1 and 0.3. (ABRIGDED)

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Toward a halo mass function for precision cosmology: The Limits of universality

TL;DR: In this paper, the mass function of dark matter halos is measured in a large set of collisionless cosmological simulations of flat ΛCDM cosmology and investigated its evolution at -->z 2.5.
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Planck 2013 results. I. Overview of products and scientific results

Peter A. R. Ade, +472 more
TL;DR: The European Space Agency's Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14 May 2009 and has been scanning the microwave and submillimetre sky continuously since 12 August 2009 as discussed by the authors.
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Dark Energy and the Accelerating Universe

Abstract: Ten years ago, the discovery that the expansion of the universe is accelerating put in place the last major building block of the present cosmological model, in which the universe is composed of 4% baryons, 20% dark matter, and 76% dark energy. At the same time, it posed one of the most profound mysteries in all of science, with deep connections to both astrophysics and particle physics. Cosmic acceleration could arise from the repulsive gravity of dark energy—for example, the quantum energy of the vacuum—or it may signal that general relativity (GR) breaks down on cosmological scales and must be replaced. We review the present observational evidence for cosmic acceleration and what it has revealed about dark energy, discuss the various theoretical ideas that have been proposed to explain acceleration, and describe the key observational probes that will shed light on this enigma in the coming years.
References
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Journal ArticleDOI

A New Robust Low-Scatter X-ray Mass Indicator for Clusters of Galaxies

TL;DR: In this paper, a comparison of X-ray proxies for the total cluster mass, including the spectral temperature (Tx), gas mass measured within r500 (Mg), and the new proxy, Yx, which is a simple product of Tx and Mg and is related to the total thermal energy of the ICM.
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First Results On Shear-Selected Clusters From the Deep Lens Survey: Optical Imaging, Spectroscopy, and X-ray Followup

TL;DR: In this paper, the first sample of galaxy clusters selected on the basis of their weak gravitational lensing shear is presented, which does not depend on the cluster's star formation history, baryon content, or dynamical state.
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Interloper treatment in dynamical modelling of galaxy clusters

TL;DR: In this article, the authors study the efficiency of different approaches to interloper treatment in dynamical modelling of galaxy clusters, taking advantage of the full 3D information available from the simulation, and select samples of interlopers defined with different criteria.
Journal ArticleDOI

RASS-SDSS Galaxy Cluster Survey. V. The X-ray-Underluminous Abell Clusters

TL;DR: In this paper, the X-ray-Underluminous Abell (AXU) clusters were identified as the normal Abell systems, i.e., systems in formation undergoing a phase of mass accretion, and they are characterized by leptokurtic (more centrally concentrated than a Gaussian) velocity distribution.
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Which redshift node type can provide the fastest read access?

The tight relation between ridgeline color and redshift provides an accurate photometric redshift estimate for every cluster.