A new method of detecting high-redshift clusters
摘要
We present a new cluster-finding algorithm based on a combination of the Voronoi Tessellation and Friends-Of-Friends methods. The algorithm utilises probability distribution functions derived from a photometric redshift analysis. We test our algorithm on a set of simulated cluster-catalogues and have published elsewhere its employment on UKIDSS Ultra Deep Survey infrared J and K data combined with 3.6 micro-m and 4.5 micro-m Spitzer bands and optical BVRi'z' imaging from the Subaru Telescope. This pilot study has detected clusters over 0.5 square degrees in the Subaru XMM-Newton Deep Field. The resulting cluster catalogue contains 13 clusters at redshifts 0.61 <= z <= 1.39 with luminosities 10 L* <~ L_tot <~ 50 L*.
引用
@article{arxiv.astro-ph/0609751,
title = {A new method of detecting high-redshift clusters},
author = {Caroline van Breukelen and Lee Clewley and David Bonfield},
journal= {arXiv preprint arXiv:astro-ph/0609751},
year = {2007}
}
备注
4 pages, to appear in proceedings of the conference "Cosmology, Galaxy Formation and Astroparticle Physics on the pathway to the SKA" (Oxford/UK, 2006)