Results 61 to 70 of about 153,040 (288)

Bayesian Cluster Finder: Clusters in the CFHTLS Archive Research Survey

open access: yes, 2011
The detection of galaxy clusters in present and future surveys enables measuring mass-to-light ratios, clustering properties, galaxy cluster abundances and therefore, constraining cosmological parameters.
Adami   +77 more
core   +1 more source

The Northern Sky Optical Cluster Survey II: An Objective Cluster Catalog for 5800 Square Degrees [PDF]

open access: yes, 2003
We present a new, objectively defined catalog of candidate galaxy clusters based on the galaxy catalogs from the Digitized Second Palomar Observatory Sky Survey (DPOSS). This cluster catalog, derived from the best calibrated plates in the high latitude (|
A. Mahabal   +23 more
core   +3 more sources

The 2dF Galaxy Redshift Survey: hierarchical galaxy clustering [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
We use the Two-Degree Field Galaxy Redshift Survey (2dFGRS) to test the hierarchical scaling hypothesis: namely, that the p-point galaxy correlation functions can be written in terms of the two-point correlation function or variance. This scaling is expected if an initially Gaussian distribution of density fluctuations evolves under the action of ...
Baugh, C. M.   +28 more
openaire   +4 more sources

The Curious Case of CysE: Diversity and Distribution of Serine Acetyltransferases in Bacteria

open access: yesProteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Serine acetyltransferase (CysE) is a member of the left‐handed β‐helix family of acetyltransferases that catalyze the rate limiting step in de novo cysteine biosynthesis. There are two isoforms of CysE that differ in length, with the shorter isoform lacking approximately 76 amino acids at the N‐terminus of the protein from the serine ...
Keely E. A. Oldham   +3 more
wiley   +1 more source

Multivariate analysis of the globular clusters in M87

open access: yes, 2015
An objective classification of 147 globular clusters in the inner region of the giant elliptical galaxy M87 is carried out with the help of two methods of multivariate analysis.
Chattopadhyay, Tanuka   +2 more
core   +1 more source

Galaxy Clusters Selected via the Sunyaev–Zel'dovich Effect in the SPTpol 100-square-degree Survey [PDF]

open access: yes, 2020
We present a catalog of galaxy cluster candidates detected in 100 square degrees surveyed with the SPTpol receiver on the South Pole Telescope. The catalog contains 89 candidates detected with a signal-to-noise ratio greater than 4.6.
Crites, A. T.   +3 more
core  

Galaxy and mass assembly (GAMA): projected galaxy clustering [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Accepted for publication by ...
Farrow, D.J.   +13 more
openaire   +6 more sources

High‐Coercivity Nd2Fe14B/α‐Fe Nanocomposites With Ultrafine Nanocrystalline Structure via Zr‐Induced Synchronous Precipitation

open access: yesRare Metals, EarlyView.
ABSTRACT Nanocomposite permanent magnets with reduced rare‐earth content represent a promising class of materials for next‐generation high‐performance applications. However, asynchronous precipitation of soft and hard magnetic phases often results in grain size mismatch and limited coercivity.
Xiaowei Zhang   +6 more
wiley   +1 more source

Impact of filaments on galaxy cluster properties in The Three Hundred simulation [PDF]

open access: yesEPJ Web of Conferences
Galaxy clusters and their filamentary outskirts reveal useful laboratories to test cosmological models and investigate Universe composition and evolution. Their environment, in particular the filaments of the Cosmic Web to which they are connected, plays
Santoni S.   +4 more
doaj   +1 more source

Spatially Resolved Stellar Populations of 0.3 < z < 6.0 Galaxies in WHL 0137–08 and MACS 0647+70 Clusters as Revealed by JWST: How Do Galaxies Grow and Quench over Cosmic Time?

open access: yesThe Astrophysical Journal, 2023
We study the spatially resolved stellar populations of 444 galaxies at 0.3 < z < 6.0 in two clusters (WHL 0137–08 and MACS 0647+70) and a blank field, combining imaging data from the Hubble Space Telescope and JWST to perform spatially resolved spectral ...
Abdurro’uf   +22 more
doaj   +1 more source

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