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High Redshift Cluster Projects

Welcome to the
High Redshift Cluster Survey Program
Web Site


This site provides on-line access to publications, figures, and data tables related to an extensive multi-wavelength observational program to study distant galaxy clusters.

The Palomar Distant Cluster Survey is a 5 square degree survey (composed of five 1 square degree fields at 00hr, 02hr, 09hr, 13hr, and 16hr R.A.). The image data for the PDCS consist of V and I band exposures acquired with the 4-shooter camera mounted on the Hale 5m telescope at Palomar Observatory.

Lori Lubin, Bev Oke, and Marc Postman have been studying a sample of 9 distant clusters (some taken from the PDCS) using the Keck 10m telescope, the HST, and the KPNO 4m (for IR imaging). The Keck Low Resolution Imaging Spectrograph (LRIS) is used to obtain spectra for about 130 galaxies in each cluster field as well as deep BVRI imaging over a 5 x 7 arcminute field of view. We also provide a new link to the Deeprange Survey, a 16 sq deg I-band survey to study distant clusters and the evolution of large scale structure. The Deeprange survey images and cluster catalog are now available on-line!

Palomar Distant Cluster GALAXY Catalog Access

The galaxy catalogs from which the PDCS was derived are now publicly available. Click here for access.

Publication Links

The Palomar Distant Cluster Survey: I. The Cluster Catalog.
Postman, M., Lubin, L. M., Gunn, J. E., Oke, J. B., Hoessel, J. G., Schneider, D. P., Christensen, J.
(1996), Astron. J., 111, 615. ADS Article
The Palomar Distant Cluster Survey: II. The Cluster Profiles.
Lubin, L. M. & Postman, M. (1996), Astron. J., 111, 1795. ADS Article
The Palomar Distant Cluster Survey: III. The Colors of the Cluster Galaxies.
Lubin, L. M. (1996), Astron. J., 112, 23. ADS Article
Spectroscopic Observations of Optically Selected Clusters of Galaxies from the Palomar Distant Cluster Survey,
Holden, B. P., Nichol, R. C., Romer, A. K., Metevier, A., Postman, M., Ulmer, M. P., Lubin, L. M., 1999, Astron. J., 118, 2002. Abstract/Article
The CFH Optical PDCS survey (COP) I: The Data
Adami, C., Holden, B., Castander, F. J., Nichol, R. C., Mazure, A., Ulmer, M. P., Postman, M., Lubin, L. 2000, Astron. J., 120, 1. Abstract/Article
The CFH Optical PDCS survey II: Evolution in the Space Density of Clusters of Galaxies
Holden, B., Adami, C., Nichol, R. C., Castander, F., Lubin, L., Romer, A. K., Mazure, A., Postman, M., Ulmer, M. P. 2000, Astron. J., 120, 23. Abstract/Article


The following papers are based on our Keck/LRIS, HST/WFPC2, and KPNO/IRIM data:

A Study of Nine High-Redshift Clusters of Galaxies: I. The Survey,
Oke, J. B., Postman, M., Lubin, L. M. (1998), Astron. J., 116, 549. Abstract/Article
A Study of Nine High-Redshift Clusters of Galaxies: II. Photometry, Spectra, and Ages of Clusters 0023+0423 and 1604+4304,
Postman, M., Lubin, L. M., Oke, J. B. (1998), Astron. J., 116, 560. Abstract/Article
A Study of Nine High-Redshift Clusters of Galaxies: III. HST Morphology of Clusters 0023+0423 and 1604+4304,
Lubin, L. M., Postman, M., Oke, J. B., Gunn, J. E., Hoessel, J. G., Schneider, D. P. (1998), Astron. J.,
116, 584. Abstract/Article
A Group-Group Merger at a Redshift of z = 0.84?
Lubin, L. M., Postman, M., & Oke, J. B. (1998), Astron. J., 116, 643. Abstract/Article
A Definitive Optical Detection of a Supercluster at z ~ 0.91,
Lubin, L., Brunner, R., Metzger, M., Postman, M., Oke, J. B., 2000, Astrophys. J. Letters, 531, L5. Abstract/Article
A Study of Nine High-Redshift Clusters of Galaxies: IV. Photometry and Spectra of Clusters 1324+3011 and 1604+4321
Postman, M., Lubin, L., Oke, J. B. 2001, Astron. J., 122, 1125. Abstract/Article
Evidence for Cluster Evolution from an Improved Measurement of the Velocity Dispersion
and Morphological Fraction for Cluster 1324+3011 at z = 0.76
Lubin, L., Oke, J. B., Postman, M. 2002, Accepted for publication in ApJ. Abstract/Article

Tables & Figures from Selected Papers


To view the desired data file, simply click on the link.
To ftp the desired data file, hold down the shift key and click on the link.

Plate figures from A Study of Nine High-Redshift Clusters of Galaxies, Paper II:
Postman et al. 1998, Paper II, Plate 1 2541555 bytes May 8 09:45 EDT 1998
A composite BVR image of the central 3.6 arcminutes of the CL0023+0423 field. Confirmed cluster members are marked by open squares. North is at top, west is to the right.
Postman et al. 1998, Paper II, Plate 2 2556008 bytes May 8 09:45 EDT 1998
A composite BVR image of the central 3.6 arcminutes of the CL1604+4304 field. Confirmed cluster members are marked by open squares. North is at top, west is to the right.
Postman et al. 1998, Paper II, Table 2 14577 bytes May 13 14:41 EDT 1998
Redshifts, Photometry, and Spectral Data for Galaxies in the CL0023+0423 field.
Postman et al. 1998, Paper II, Table 3 14589 bytes May 13 14:42 EDT 1998
Redshifts, Photometry, and Spectral Data for Galaxies in the CL1604+4304 field.

Tables from A Study of Nine High-Redshift Clusters of Galaxies, Paper III:
Lubin et al. 1998, Paper III, Table 1A 107335 bytes Apr 15 16:52 EDT 1998
Morphological Parameters for Galaxies in the CL0023+0423 field.
Lubin et al. 1998, Paper III, Table 1B 89958 bytes Apr 15 16:53 EDT 1998
Morphological Parameters for Galaxies in the CL1604+4304 field.

Last Updated: 10 July 2002