English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present a new algorithm, CAMIRA, to identify clusters of galaxies inwide-field imaging survey data. We base our algorithm on the stellar populationsynthesis model to predict colours of red-sequence galaxies at a given redshiftfor an arbitrary set of bandpass filters, with additional calibration using asample of spectroscopic galaxies to improve the accuracy of the modelprediction. We run the algorithm on ~11960 deg^2 of imaging data from the SloanDigital Sky Survey (SDSS) Data Release 8 to construct a catalogue of 71743clusters in the redshift range 0.1<z<0.6 with richness after correcting for theincompleteness of the richness estimate greater than 20. We cross-match thecluster catalogue with external cluster catalogues to find that our photometriccluster redshift estimates are accurate with low bias and scatter, and that thecorrected richness correlates well with X-ray luminosities and temperatures. Weuse the publicly available Canada-France-Hawaii Telescope Lensing Survey(CFHTLenS) shear catalogue to calibrate the mass-richness relation from stackedweak lensing analysis. Stacked weak lensing signals are detected significantlyfor 8 subsamples of the SDSS clusters divided by redshift and richness bins,which are then compared with model predictions including miscentring effects toconstrain mean halo masses of individual bins. We find the richness correlateswell with the halo mass, such that the corrected richness limit of 20corresponds to the cluster virial mass limit of about 1 \times 10^14 M_Sun/hfor the SDSS DR8 cluster sample.

A cluster finding algorithm based on the multiband identification of red sequence galaxies