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J/A+A/452/119       EIS: infrared observations of CDF-S and HDF-S (Olsen+, 2006)

ESO imaging survey: infrared observations of CDF-S and HDF-S. Olsen L.F., Miralles J.-M., da Costa L., Benoist C., Vandame B., Rengelink R., Rite C., Scodeggio M., Slijkhuis R., Wicenec A., Zaggia S. <Astron. Astrophys. 452, 119 (2006)> =2006A&A...452..119O
ADC_Keywords: Surveys ; Infrared sources ; Photometry, infrared Keywords: catalogs - surveys - stars: general - galaxies: general - cosmology: observations Abstract: This paper presents infrared data obtained from observations carried out at the ESO 3.5m New Technology Telescope (NTT) of the Hubble Deep Field South (HDF-S) and the Chandra Deep Field South (CDF-S). These data were taken as part of the ESO Imaging Survey (EIS) program, a public survey conducted by ESO to promote follow-up observations with the VLT. In the HDF-S field the infrared observations cover an area of ∼53 square arcmin, encompassing the HST WFPC2 and STIS fields, in the JHKs passbands. The seeing measured in the final stacked images ranges from 0.79" to 1.22" and the median limiting magnitudes (AB system, 2" aperture, 5sigma detection limit) are J_AB∼23.0, H_AB∼22.8 and K_AB∼23.0mag. Less complete data are also available in JKs for the adjacent HST NICMOS field. For CDF-S, the infrared observations cover a total area of ∼100 square arcmin, reaching median limiting magnitudes (as defined above) of J_AB∼23.6 and K_AB∼22.7mag. For one CDF-S field H-band data are also available. This paper describes the observations and presents the results of new reductions carried out entirely through the un-supervised, high-throughput EIS Data Reduction System and its associated EIS/MVM C+±based image processing library developed, over the past 5 years, by the EIS project and now publicly available. The paper also presents source catalogs extracted from the final co-added images which are used to evaluate the scientific quality of the survey products, and hence the performance of the software. This is done comparing the results obtained in the present work with those obtained by other authors from independent data and/or reductions carried out with different software packages and techniques. Description: The subdirectory "cat" includes the science grade catalogs extracted for each of the 7 fields discussed in this paper and the log-files associated with each catalog. The catalog files are in FITS format containing the primary HDU and 4 tables (MASKS, FILTER, OBJECTS and FIELDS) with the format described in Dietrich et al., 2006A&A...449..837D. The log files contain information about parameters used in the extraction process as well as parameters for quality assessment of the catalogs The subdirectory "ima" includes the science grade images created for each of the 7 fields discussed in this paper and the log-files associated with each catalog. The images are in FITS format with two extensions, the first one giving the actual image and the second one being a weight map. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file fields.dat 78 17 Fields (in 2 or 3 photometric bands) catalog.dat 93 7735 Selected values from complete catalog, for guidance desccat.dat 81 69 Content of the file object in cat/*.cat fits files cat/* 0 34 *Science grade catalogs and corresponding logfiles ima/* 0 34 *Science grade images and corresponding logfiles
Note on cat/*, ima/*: catalog or images are stored in FITS format (extension .fits); log files are stored as gzipped tar files (extension .tgz)
See also: http://www.eso.org/eis/ : ESO Imaging Survey home page J/A+A/456/881 : EIS: infrared deep public survey (Olsen+, 2006) J/A+A/379/740 : ESO Imaging Survey (EIS) (Arnouts+, 2001) J/A+A/384/81 : ESO Imaging Survey. CDF-S point sources (Hatziminaoglou+, 2002) J/A+A/392/741 : Stellar Catalogue in the Chandra DFS (Groenewegen+ 2002) J/A+AS/137/75 : ESO Imaging Survey. IV. (Zaggia+, 1999) J/A+AS/137/83 : ESO Imaging Survey. VII. (Scodeggio+, 1999) Byte-by-byte Description of file: fields.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Field Field designation (CDFS1-CDFS4, HDFS1-HDFS3) 7- 8 A2 --- Band [J H Ks] Photometric band 10- 26 A17 --- Cat Catalog file name (in fits) (1) 28- 43 A16 --- Catlog Name of the tar.gz file containing the logs as a series of image files, html and xml files 45- 61 A17 --- Image Image file name (in fits) 63- 78 A16 --- Imalog Name of the tar.gz file containing the logs as a series of image files, html and xml files
Note (1): Catalogues are stored as FITS files, with 4 extensions in addition to the primary HDU: -- MASKS 1 column -- FILTER 4 columns - filter transmission and response of the entire system -- OBJECTS 69 columns - the actual object list (columns described in the file "desccat.dat") -- FIELDS 109 columns - general information about the field
Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Field Field designation (CDFS1-CDFS4, HDFS1-HDFS3) 7- 8 A2 --- Band [J H Ks] Photometric band 10 I1 --- --- [1] Field number 12- 15 I4 --- Seq Sequential number 17- 23 F7.4 mag magISO Isophotal magnitude in Band 25- 31 F7.4 mag magAUTO Kron-like elliptical aperture magnitude in Band 33- 43 F11.7 deg RAdeg Right ascension in decimal degrees, J2000 45- 55 F11.7 deg DEdeg Declination in decimal degrees, J2000 57- 62 F6.3 pix A Profile RMS along major axis 64- 68 F5.3 pix B Profile RMS along minor axis 70- 74 F5.1 deg Theta Position angle 76- 80 F5.3 --- Ell Ellipticity (1-B/A) 82- 85 F4.2 --- S/G Star/Galaxy classifier (0 galaxy, 1 star) 87- 93 F7.3 pix FluxRad Fraction-of-light radii
Byte-by-byte Description of file: desccat.dat
Bytes Format Units Label Explanations
1- 19 A19 --- Param Parameter name 21- 33 A13 --- Unit Unit of the parameter 34- 81 A48 ---- Expla Explanation of the parameter
Acknowledgements: Lisbeth Fogh Olsen, LisbethFogh.OLSEN(at)obs-nice.fr References: Dietrich et al., Paper I 2006A&A...449..837D
(End) L.F. Olsen [Dark Cosmology Centre, Niels Bohr Institute] 22-Feb-2006
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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