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J/AJ/120/1          VRI photometry of PDCS survey            (Adami+, 2000)

The Canada-France-Hawaii telescope optical PDCS survey (COP). I. The data. Adami C., Holden B.P., Castander F.J., Nichol R.C., Mazure A., Ulmer M.P., Postman M., Lubin L.M. <Astron. J. 120, 1 (2000)> =2000AJ....120....1A
ADC_Keywords: Surveys ; Clusters, galaxy ; Photometry, VRI Keywords: cosmology: observations - galaxies: clusters: general - large-scale structure of universe Abstract: 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. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tables.dat 73 635 Data for the line-of-sight (tables 6-15)
Byte-by-byte Description of file: tables.dat
Bytes Format Units Label Explanations
1- 5 A5 --- PDCS PDCS number (1) 7- 11 F5.2 --- No Observed galaxy sequence (2) 13 I1 --- Gr Field/group classification (3) 15- 21 F7.5 --- z ? Redshift (4) 22 A1 --- u_z [(] Uncertainty flag 23- 29 F7.5 --- e_z ? rms uncertainty on z 31- 38 F8.1 arcsec RAarcsec Right ascension (J2000.0) 40- 47 F8.1 arcsec DEarcsec Declination (J2000.0) 49- 53 F5.2 mag Vmag ?=99.99 PDCS V magnitude 55- 59 F5.2 mag Imag ?=99.99 PDCS I magnitude 61- 65 F5.2 mag Rmag ?=99.99 PDCS R magnitude 67- 73 A7 --- Type Spectral features (5)
Note (1): In Simbad, objects are identified as: COP PDCS NN NN.NN or COP PDCS 30-45 NN.NN for PDCS 30/45 Note (2): 58.1 means 58th galaxy observed in mask 1 Note (3): 0 means field galaxy, 1 means first group, etc. Note (4): The last digit is given only for information, but is not significant according to the error For PDCS 1.42, this galaxy exhibits a single broadband emission line, probably from a quasar. The cross-correlation technique provides, however, with the absorption-line features, a redshift equal to 0.57801±0.00049. Note (5): the abbreviations have the following meaning: "em" means redshift from emission lines only; "ea" means redshift from emission lines but consistent with absorption line features; an empty cell means redshift from absorption line features only.
History: From AJ electronic version
(End) James Marcout, Patricia Bauer [CDS] 11-Sep-2000
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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