J/MNRAS/372/741 SXDF 100µJy catalogue (Simpson+, 2006)
Radio imaging of the Subaru/XMM-Newton Deep Field.
I. The 100-µJy catalogue, optical identifications, and the nature of the
faint radio source population.
Simpson C., Martinez-Sansigre A., Rawlings S., Ivison R., Akiyama M.,
Sekiguchi K., Takata T., Ueda Y., Watson M.
<Mon. Not. R. Astron. Soc., 372, 741-757 (2006)>
=2006MNRAS.372..741S 2006MNRAS.372..741S
ADC_Keywords: Surveys ; Radio sources ; Active gal. nuclei ; Redshifts
Keywords: catalogues - surveys - galaxies: active - radio continuum: galaxies
Abstract:
We describe deep radio imaging at 1.4GHz of the 1.3-deg2
Subaru/XMM-Newton Deep Field (SXDF), made with the Very Large Array
in B and C configurations. We present a radio map of the entire field,
and a catalogue of 505 sources covering 0.8deg2 to a peak flux
density limit of 100uJy. Robust optical identifications are provided
for 90 per cent of the sources, and suggested identifications are
presented for all but 14 (of which seven are optically blank, and
seven are close to bright contaminating objects). We show that the
optical properties of the radio sources do not change with flux
density, suggesting that active galactic nuclei (AGN) continue to
contribute significantly at faint flux densities. We test this
assertion by cross-correlating our radio catalogue with the X-ray
source catalogue and conclude that radio-quiet AGN become a
significant population at flux densities below 300uJy, and may
dominate the population responsible for the flattening of the radio
source counts if a significant fraction of them are Compton-thick.
Description:
The SXDF was observed with the National Radio Astronomy Observatory's
Very Large Array (VLA) in B-array. Three test observations of
pointings 1, 4 and 6 were taken on 2001 May 17, and the rest of the
data were obtained in 13 runs, each lasting 4.5h, between 2002 August
10 and September 9.
All 14 pointings were re-observed in C-array on 2003 January 15 to
provide additional information on larger angular scales.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 169 512 The full 100 microJy catalogue
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See also:
J/ApJ/634/861 : Old passively evolving galaxies at z=1 in SXDF (Yamada+, 2005)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Sequential number
6- 8 A3 --- --- [VLA]
10- 22 A13 --- VLA VLA designation (JHHMMSS-DDMMm),
[SMR2006] VLA JHHMMSS+DDMMm in Simbad
24 I1 h RAh Right ascension (J2000)
26- 27 I2 min RAm Right ascension (J2000)
29- 33 F5.2 s RAs Right ascension (J2000)
35 A1 --- DE- Declination sign (J2000)
36 I1 deg DEd Declination (J2000)
38- 39 I2 arcmin DEm Declination (J2000)
41- 45 F5.2 arcsec DEs Declination (J2000)
47- 53 F7.1 uJy S1.4GHz Flux density at 1.4GHz
55- 59 F5.1 uJy e_S1.4GHz rms uncertainty on S1.4GHz
61- 67 F7.4 --- Rel ? Reliability of the optical identification
68 A1 --- n_Rel [ABC-] Note when no reliability value (1)
70- 84 A15 --- Com Comments on identification
85- 95 A11 ---- optID Catalog ID
97- 98 I2 h RAo.h Optical Right ascension (J2000)
100-101 I2 min RAo.m Optical Right ascension (J2000)
103-108 F6.3 s RAo.s Optical Right ascension (J2000)
110 A1 --- DEo.- Optical Declination sign (J2000)
111-112 I2 deg DEo.d Optical Declination (J2000)
114-115 I2 arcmin DEo.m Optical Declination (J2000)
117-121 F5.2 arcsec DEo.s Optical Declination (J2000)
124-128 F5.3 --- z ? Spectroscopic redshift
129 A1 --- u_z [?] Uncertainty flag on z
131-137 F7.4 mag Bmag ?=99.999 B magnitude on AB scale
139-145 F7.4 mag Vmag ?=99.999 V magnitude on AB scale
147-153 F7.4 mag Rmag ?=99.999 R magnitude on AB scale
155-161 F7.4 mag i'mag ?=99.999 i' magnitude on AB scale
163-169 F7.4 mag z'mag ?=99.999 z' magnitude on AB scale
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Note (1): Reliability as follows:
A = reliable
B = probable
C = plausible
- = certain identification
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 29-May-2007