J/ApJS/155/73 Photometric redshifts of X-ray sources in CDF-S (Zheng+, 2004)
Photometric redshift of X-ray sources in the Chandra Deep Field-South.
Zheng W., Mikles V.J., Mainieri V., Hasinger G., Rosati P., Wolf C.,
Norman C., Szokoly G., Gilli R., Tozzi P., Wang J.X., Zirm A., Giacconi R.
<Astrophys. J. Suppl. Ser., 155, 73-87 (2004)>
=2004ApJS..155...73Z 2004ApJS..155...73Z
ADC_Keywords: Active gal. nuclei ; QSOs ; Redshifts ; X-ray sources
Keywords: galaxies: active - galaxies: distances and redshifts -
galaxies: photometry - X-rays: galaxies - X-rays: general
Abstract:
Based on the photometry of 10 near-ultraviolet, optical, and
near-infrared bands of the Chandra Deep Field-South, we estimate the
photometric redshifts for 342 X-ray sources, which constitute ∼99% of
all the detected X-ray sources in the field.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 60 342 Photometric redshifts of X-ray sources in
Chandra Deep Field South
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See also:
II/253 : Chandra Deep Field South: multi-colour data (Wolf+, 2004)
J/ApJS/139/369 : Chandra Deep Field South. 1 Ms catalog (Giacconi+, 2002)
J/A+A/379/740 : ESO Imaging Survey (EIS) (Arnouts+, 2001)
J/A+A/377/442 : Chandra Deep Field South: R-band photometry (Wolf+, 2001)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- XID CDFS Unique Detection identification number (1)
5- 6 I2 h RAh Hour of Right Ascension (J2000) (2)
8- 9 I2 min RAm Minute of Right Ascension (J2000) (2)
11- 15 F5.2 s RAs Second of Right Ascension (J2000) (2)
17 A1 --- DE- Sign of the Declination (J2000) (2)
18- 19 I2 deg DEd Degree of Declination (J2000) (2)
21- 22 I2 arcmin DEm Arcminute of Declination (J2000) (2)
24- 27 F4.1 arcsec DEs Arcsecond of Declination (J2000) (2)
29- 31 F3.1 arcsec Sep Offset from the X-ray position
33- 36 F4.2 --- z Redshift
38- 42 F5.2 --- zmin Lower limit to z at 95% confidence level (3)
44- 48 F5.2 --- zmax ? Upper limit to z at 95% confidence level (3)
50- 55 A6 --- Type X-ray classification
57- 59 F3.1 --- q_z [0,3] Quality index (4)
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Note (1): Identified as [GZW2002] XID NNN in Simbad.
Note (2): Optical counterpart position.
Note (3): Lower and upper limits to z at 95% confidence level:
-1.00 = spectroscopic redshift.
Note (4): Quality index, defined as follows:
0.2 = HyperZ (Bolzonella et al., 2000A&A...363..476B 2000A&A...363..476B) model only;
0.3 = BPZ (Benitez, 2000ApJ...536..571B 2000ApJ...536..571B) model only;
0.4 = COMBO-17 (see Cat. II/253) survey only;
0.5 = BPZ and HyperZ;
0.6 = COMBO-17 and HyperZ;
0.7 = COMBO-17 and BPZ;
0.9 = COMBO-17, BPZ and HyperZ;
1.2 = Single-line spectrum and HyperZ;
1.6 = Single-line spectrum, COMBO-17, and HyperZ;
1.9 = Single-line spectrum, COMBO-17, BPZ and HyperZ;
2.0 = Secure spectroscopic redshift, but optical counterpart uncertain;
3.0 = Secure spectroscopic redshift.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 09-May-2005