Photometric validation of a model independent procedure to extract galaxy clusters

Details Photometric validation of a model independent procedure to extract galaxy clusters Photometric validation of a model independent procedure to extract galaxy clusters

2001-10-15

arxiv.org/abs/astro-ph/0110321v1

Astronomy and Astrophysics

Astrophysics

A&A in press

Scientific paper

10.1051/0004-6361:20011316

By means of CCD photometry in three bands (Gunn g, r, i) we investigate the existence of 12 candidate clusters extracted via a model independent peak finding algorithm (\cite{memsait}) from DPOSS data. The derived color-magnitude diagrams allow us to confirm the physical nature of 9 of the cluster candidates, and to estimate their photometric redshifts. Of the other candidates, one is a fortuitous detection of a true cluster at z~0.4, one is a false detection and the last is undecidable on the basis of the available data. The accuracy of the photometric redshifts is tested on an additional sample of 8 clusters with known spectroscopic redshifts. Photometric redshifts turn out to be accurate within z~0.01 (interquartile range).

Affiliated with

Also associated with

No associations

Rating

Photometric validation of a model independent procedure to extract galaxy clusters 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 Photometric validation of a model independent procedure to extract galaxy clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometric validation of a model independent procedure to extract galaxy clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-621369