The CNOC Cluster Redshift Survey Catalogs. I. Observational Strategy and Data Reduction Techniques

Details The CNOC Cluster Redshift Survey Catalogs. I. Observational Strategy and Data Reduction Techniques The CNOC Cluster Redshift Survey Catalogs. I. Observational Strategy and Data Reduction Techniques

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apjs..102..269y&link_type=abstract

Astrophysical Journal Supplement v.102, p.269

Astronomy and Astrophysics

Astronomy

175

Galaxies: Clusters: General, Galaxies: Distances And Redshifts, Instrumentation: Spectrographs, Surveys

Scientific paper

We describe in detail the observational and data reduction techniques of a large redshift survey using multiobject spectroscopy designed to obtain ~2600 faint galaxy redshifts in fields of 16 rich clusters of galaxies with redshifts between 0.2 and 0.55. The primary goal of the survey is to establish whether the mass-to-light ratio of clusters rises with distance from the cluster center. To maximize multiplexing capability, we use ~1500 A wide band-limiting filters matched to the major features of spectra of galaxies at the cluster redshifts to allow for multitiering of spectra. Typically 80-110 spectra can be observed using a single slit mask. The area covered for each cluster ranges from about 1.5 h_100_^-1^ Mpc squared to 1.5 h_100_^-1^ Mpc x 6 h_100_^-1^ Mpc. We describe the observing procedure, which involves real-time photometry and computer-based mask design and mask fabrication on site, allowing for the efficient use of telescope time. The spectroscopic data are extracted semiautomatically, and redshift measurement is performed using cross-correlation techniques. A detailed discussion of the determination of the completeness of the final redshift sample as functions of magnitude, color, geometric position, and redshift is also presented.

Affiliated with

Also associated with

No associations

Rating

The CNOC Cluster Redshift Survey Catalogs. I. Observational Strategy and Data Reduction Techniques 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 The CNOC Cluster Redshift Survey Catalogs. I. Observational Strategy and Data Reduction Techniques, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The CNOC Cluster Redshift Survey Catalogs. I. Observational Strategy and Data Reduction Techniques will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1153909