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541
New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies
Published 2016-12-01“…Although our results are not competitive with the ones from quasar absorption lines, we improved by a factor 10 and ∼2.5 previous results from Cosmic Microwave Background power spectrum and from galaxy clusters, respectively.…”
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542
OLIMPO: A balloon-borne SZE imager to probe ICM dynamics and the WHIM
Published 2024-01-01“…During a 25 day flight OLIMPO will image a total of 10 z∼0.05 galaxy clusters and 8 bridges at 145, 250, 365, and 460 GHz at an angular resolution of 1.0′–3.3′. …”
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543
Cluster-counterpart Voids: Void Identification from Galaxy Density Field
Published 2023-01-01“…Our result demonstrates that we can apply this method to the galaxy redshift survey data to identify cosmic voids corresponding statistically to the galaxy clusters in a given mass range.…”
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544
Galaxy Merger Candidates in High-redshift Cluster Environments
Published 2017“…We compile a sample of spectroscopically and photometrically selected cluster galaxies from four high-redshift galaxy clusters (1.59 < z < 1.71) from the Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS), and a comparison field sample selected from the UKIDSS Deep Survey. …”
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545
The APM cluster survey: Cluster detection and large-scale structure
Published 1995“…The APM Cluster Survey was based on a modification of Abell's original classification scheme for galaxy clusters. Here we discuss the results of an investigation of the stability of the statistical properties of the cluster catalogue to changes in the selection parameters. …”
Conference item -
546
Adapted Method for Separating Kinetic SZ Signal from Primary CMB Fluctuations
Published 2005-01-01“…To achieve these results, our method is based on the fact that some first-step component separation provides us with (i) a map of Compton parameters for the thermal Sunyaev-Zel'dovich (TSZ) effect of galaxy clusters, and (ii) a map of temperature fluctuations which is the sum of primary CMB and KSZ signals. …”
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547
Cosmology from large-scale structure: constraining ΛCDM with BOSS
Published 2020“…We reanalyse the anisotropic galaxy clustering measurement from the Baryon Oscillation Spectroscopic Survey (BOSS), demonstrating that using the full shape information provides cosmological constraints that are comparable to other low-redshift probes. …”
Journal article -
548
The SAMI Galaxy Survey: Mass as the driver of the kinematic morphology-density relation in clusters
Published 2017“…We examine the kinematic morphology of early-type galaxies (ETGs) in eight galaxy clusters in the Sydney-AAO Multi-object Integral-field spectrograph Galaxy Survey. …”
Journal article -
549
A GMRT Narrowband vs. Wideband Analysis of the ACT−CL J0034.4+0225 Field Selected from the ACTPol Cluster Sample
Published 2021-12-01“…Low frequency radio observations of galaxy clusters are a useful probe of the non-thermal intracluster medium (ICM), through observations of diffuse radio emission such as radio halos and relics. …”
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550
Ram Pressure Stripping in the EAGLE Simulation
Published 2023-01-01“…Ram pressure stripping of satellite galaxies is thought to be a ubiquitous process in galaxy clusters, and a growing number of observations reveal satellites at different stages of stripping. …”
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551
The Three Hundred–NIKA2 Sunyaev–Zeldovich Large Program twin samples: Synthetic clusters to support real observations
Published 2022-01-01“…This SZ Large Program is observing a selection of galaxy clusters at intermediate and high redshift (0:5 < z < 0:9), covering one order of magnitude in mass. …”
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552
Scale-dependent growth from a transition in dark energy dynamics
Published 2012“…Going beyond the linearized regime, the quintessence field can fragment into large, localized, long-lived excitations (oscillons) with sizes comparable to galaxy clusters; this fragmentation could provide additional observational constraints. …”
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553
Cluster Distances: the Good, the Bad and the Ugly
Published 1999“…Galaxy clusters are important targets for peculiar velocity studies as a direct comparison of the various distance indicators can be made. …”
Conference item -
554
Self-interacting dark matter on small and large scales
Published 2023-07-01“…SIDM has been constrained by observations of galaxy clusters. More recently, measurements of large DM densities at the center of the Milky Way's galaxy satellites are indicating that DM-DM interactions can potentially induce gravothermal core collapse. …”
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555
Visualization of 3D galaxy and quasar data
Published 2012“…Recent advances in observatory astronomy have brought in a large volume of high quality data about the very far end of our universe, including galaxy, clusters, quasars, etc. The aim of this project was to develop a visualization of these 3D data for possible inclusion in a digital planetarium project. …”
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Final Year Project (FYP) -
556
Planck intermediate results. VIII. Filaments between interacting clusters
Published 2012“…Using the Planck data we construct a local map of the tSZ effect centered on each pair of galaxy clusters. ROSAT data is used to construct X-ray maps of these pairs. …”
Journal article -
557
Velocity Segregation and Systematic Biases in Velocity Dispersion Estimates with the SPT-GMOS Spectroscopic Survey
Published 2018“…Keywords: cosmology: observations; galaxies: clusters: general; galaxies: distances; redshifts; galaxies: evolution ; galaxies: kinematics and dynamics…”
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558
Constraints on the Hosts of UHECR Accelerators
Published 2023-01-01“…Applying this to candidate sources with a simple structure shows that starburst galaxies are consistent with these constraints, but galaxy clusters are in tension with them. For multicomponent systems like active galactic nuclei and gamma-ray bursts, the results are indicative, but a customized analysis is needed for definitive conclusions.…”
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559
Radio galaxies and energetics of the intracluster medium
Published 2002“…The time- and ensemble-averaged mechanical energy outputs of radio galaxies may be large enough to offset much of the cooling inferred from X-ray observations of galaxy clusters. But does this heating actually counterbalance the cooling, diminishing cooling flows or quenching them altogether? …”
Conference item -
560
The large-scale structure of the universe
Published 1987“…Chapter 4 is concerned with two-point correlation functions for galaxies, clusters and super-clusters. In Chapter 5, some effects of using velocity as a distance measure are examined. …”
Thesis