Galaxy clusters in the CFHTLS. First matched filter candidate catalogue of the Deep fields

Details Galaxy clusters in the CFHTLS. First matched filter candidate catalogue of the Deep fields Galaxy clusters in the CFHTLS. First matched filter candidate catalogue of the Deep fields

2006-09-29

arxiv.org/abs/astro-ph/0609815v1

Astronomy and Astrophysics

Astrophysics

15 pages, 15 figures, accepted for publication in A&A, a full resolution copy of the paper can be retrieved from http://www.

Scientific paper

10.1051/0004-6361:20066088

We apply a matched-filter cluster detection algorithm to the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) i-band data for the Deep-1, Deep-2, Deep-3 and Deep-4 fields covering a total of 4square degrees. To test the implemented procedure we carry out simulations for assessing the frequency of noise peaks as well as estimate the recovery efficiency. We estimate that up to z~0.7 the catalogue is essentially complete for clusters of richness class R>~1. The recovered redshifts are in general overestimated by dz=0.1 with a scatter of sigma_dz~0.1, except at redshifts z>~1 where the estimated redshifts are systematically underestimated. The constructed cluster candidate catalogue contains 162 detections over an effective area of 3.112 square degrees corresponding to a density of ~52.1 per square degree. The median estimated redshift of the candidates is z=0.6. The estimated noise frequency is 16.9+-5.4 detections per square degree. From visual inspection we identify systems that show a clear concentration of galaxies with similar colour. These systems have a density of ~20 per square degree.

Affiliated with

Also associated with

No associations

Rating

Galaxy clusters in the CFHTLS. First matched filter candidate catalogue of the Deep fields does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Galaxy clusters in the CFHTLS. First matched filter candidate catalogue of the Deep fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galaxy clusters in the CFHTLS. First matched filter candidate catalogue of the Deep fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-183827