A Caltech Library Service

The Northern Sky Optical Cluster Survey

Gal, Roy R. and de Carvalho, Reinaldo R. and Odewahn, Stephen C. and Djorgovski, S. George and Brunner, Robert J. and Margoniner, Vera E. (2001) The Northern Sky Optical Cluster Survey. In: Mining the Sky. Springer , Berlin, pp. 160-167. ISBN 978-3-540-42468-0.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


The Northern Sky Optical Cluster Survey aims to create an objective catalog of galaxy clusters over the entire high-galactic-latitude Northern sky. We use the catalogs generated from the Digitized Second Palomar Sky Survey (DPOSS, Djorgovski et al. 1999) as the basis for this survey. We apply a color criterion to select against field galaxies, and use a simple adaptive kernel technique to create galaxy density maps, combined with the bootstrap technique to make significance maps, from which density peaks are selected. We find a mean surface density of ∼1.5 clusters per square degree, consistent with the detection of richness class 0 and higher clusters to z∼0.3. In addition, we demonstrate an effective photometric redshift estimator for our clusters.

Item Type:Book Section
Related URLs:
URLURL TypeDescription ReadCube access
de Carvalho, Reinaldo R.0000-0002-1283-3363
Djorgovski, S. George0000-0002-0603-3087
Additional Information:© 2001 Springer-Verlag Berlin Heidelberg. First Online: 08 October 2003.
Subject Keywords:Galaxy Cluster; Cluster Detection; Cluster Candidate; False Detection Rate; Type Galaxy
Record Number:CaltechAUTHORS:20190723-160211878
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97371
Deposited By: Tony Diaz
Deposited On:24 Jul 2019 16:47
Last Modified:16 Nov 2021 17:31

Repository Staff Only: item control page