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J/AJ/120/2747       HDF-South WFPC2 observations             (Casertano+, 2000)

WFPC2 observations of the Hubble Deep Field South. Casertano S., De Mello D.F., Dickinson M., Ferguson H.C., Fruchter A.S., Gonzalez-Lopezlira R.A., Heyer I., Hook R.N., Levay Z., Lucas R.A., Mack J., Makidon R.B., Mutchler M., Smith T.E., Stiavelli M., Wiggs M.S., Williams R.E. <Astron. J. 120, 2747 (2000)> =2000AJ....120.2747C
ADC_Keywords: Galaxies, photometry Mission_Name: HST Keywords: cosmology: observations - galaxies: evolution - galaxies: statistics Abstract: The Hubble Deep Field South (HDF-S) observations targeted a high Galactic latitude field near QSO J2233-606. We present Wide Field Planetary Camera 2 observations of the field in four wide bandpasses centered at roughly 300, 450, 606, and 814 nm. Observations, data reduction procedures, and noise properties of the final images are discussed in detail. A catalog of sources is presented, and the number counts and color distributions of the galaxies are compared with a new catalog of the original Hubble Deep Field (HDF-N) that has been constructed in an identical manner. The two fields are qualitatively similar, with the galaxy number counts for the two fields agreeing to within 20%. The HDF-S has more candidate Lyman break galaxies at z>2 than the HDF-N. The star formation rate per unit volume computed from the HDF-S, based on the UV luminosity of high-redshift candidates, is a factor of 1.9 higher than from the HDF-N at z∼2.7, and a factor of 1.3 higher at z∼4. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table6.dat 97 2657 Object catalog for the HDF-S WFPC2 field
See also: J/A+AS/145/111 : HDF-South catalogue of galaxies (Volonteri+, 2000) J/AJ/119/486 : HDF-S: STIS imaging (Gardner+, 2000) J/AJ/120/2206 : NTT, HDF-S and HDF-N photometric redshifts (Fontana+, 2000) J/ApJ/538/493 : HDF-South NICMOS field (Yahata+, 2000) Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 5 I5 --- [CDD2000] SExtractor identification number (1) 7- 8 I2 h RAh Right Ascension (J2000) 10- 11 I2 min RAm Right Ascension (J2000) 13- 17 F5.2 s RAs Right Ascension (J2000) 19 A1 --- DE- Declination (J2000) 20- 21 I2 deg DEd Declination (J2000) 23- 24 I2 arcmin DEm Declination (J2000 26- 29 F4.1 arcsec DEs Declination (J2000) 31- 37 F7.2 pix Xpix The x pixel position in the version 2 images 39- 45 F7.2 pix Ypix The y pixel position in the version 2 images 47- 51 F5.2 mag Imag ? Isophotal F814W magnitude (2) 53- 56 F4.2 mag e_Imag ? The uncertainty in Imag (2) 58- 62 F5.2 mag Emag ? The elliptical (Kron, 1980ApJS...43..305K) magnitude (3) 64- 68 F5.2 mag u-b ? The (U{F300W} - B{F450W}) color (4) 70- 74 F5.2 mag b-v ? The (B{F450W} - V{F606W}) color (4) 76- 80 F5.2 mag v-i ? The (V{F606W} - I{F814W}) color (4) 82- 86 I5 marcsec Half Half-light radius (5) 88- 91 F4.2 --- Class [0,1] Star-galaxy classification parameter (6) 93- 96 A4 --- f_[CDD2000] Object flags (7)
Note (1): The objects in the list have been sorted by Right Ascension (first) and Declination (second), and thus are no longer in catalog order. In addition, the numbers are no longer continuous, as some of the object identifications from the first SExtractor run have been removed. Objects from the second SExtractor run have had 10000 added to their identification numbers. These identification numbers provide a cross-reference to the segmentation maps. Note (2): The magnitudes are given in the AB system (Oke, 1971ApJ...170..193O), where m = -2.5 log fν - 48.60. Note (3): Determined from the sum of the counts in an elliptical aperture. The semi-major axis of this aperture is defined by 2.5 times the first moments of the flux distribution within an ellipse roughly twice the isophotal radius, with a minimum semi-major axis of 3.5 pixels. Note (4): When the measured flux in the bluer band is less than 2σ, we list the 2-sigma upper-limit to the color determined from the photometric errors in the aperture. If both bands are upper limits, no color is listed. The magnitudes are given in the AB system (Oke, 1971ApJ...170..193O), where m = -2.5 log fν - 48.60. Note (5): Defined by SExtractor as the radius at which a circular aperture contains half of the flux in the elliptical aperture. Note (6): Determined by a neural network within SExtractor, and based upon the morphology of the object in the detection images (see Bertin & Arnouts, 1996A&AS..117..393B, for a detailed description of the neural network). Classifications near 1.0 are more like a point source, while classifications near 0.0 are more extended. Note (7): Each flag is set if the condition is satisfied in at least one filter. a = Object has near neighbors (more than 10% of Emag area overlaps detected objects) b = Object was originally blended with another c = At least one pixel is saturated d = Object's aperture data is incomplete or corrupted e = Object is off the image, or within 30 pixels of the edge f = Object lies on top of a diffraction spike g = Photometry is from the second run of SExtractor.
History: From AJ electronic version
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 02-Feb-2001
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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