The Canada-France-Hawaii telescope optical PDCS survey (COP). I. The data

C. Adami*, B. P. Holden, F. J. Castander, R. C. Nichol, A. Mazure, M. P. Ulmer, M. Postman, L. M. Lubin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This paper presents the COP (CFHT optical PDCS; CFHT: Canada-France-Hawaii Telescope, PDCS: Palomar Distant Cluster Survey) survey data. We describe our photometric and spectroscopic observations with the multiobject spectrograph (MOS) at the CFHT. A comparison of the photometry from the PDCS catalogs and from the new images we have obtained at the CFHT shows that the different magnitude systems can be cross-calibrated. After identification between the PDCS catalogs and our new images, we built catalogs with redshift, coordinates, and VPDCS, IPDCs and RCOP magnitudes. We have classified the galaxies along the lines of sight into field and structure galaxies using a gap technique from Katgert et al. In total we have observed 18 significant structures along the 10 lines of sight.

Original languageEnglish (US)
Pages (from-to)1-22
Number of pages22
JournalAstronomical Journal
Issue number1
StatePublished - Jul 2000


  • Cosmology: observations
  • Galaxies: clusters: general
  • Large-scale structure of universe

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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