J/A+A/544/A38 ATLAS 2.3GHz observations of ELAIS-S1 and CDF-S (Zinn+, 2012)
The Australia Telescope Large Area Survey: 2.3GHz observations of ELAIS-S1 and
CDF-S. Spectral index properties of the faint radio sky.
Zinn P.-C., Middelberg E., Norris R.P., Hales C.A., Mao M.Y., Randall K.E.
<Astron. Astrophys. 544, A38 (2012)>
=2012A&A...544A..38Z 2012A&A...544A..38Z
ADC_Keywords: Surveys ; Radio sources ; Active gal. nuclei ;
Keywords: galaxies: active - catalogs - galaxies: evolution -
radio-continuum: galaxies - surveys
Abstract:
The Australia Telescope Large Area Survey (ATLAS) aims to image a
7deg2 region centred on the European Large Area ISO Survey - South 1
(ELAIS-S1) field and the Chandra Deep Field South (CDF-S) at 1.4GHz
with high sensitivity (up to σ∼10uJy) to study the evolution of
star-forming galaxies (SFGs) and Active Galactic Nuclei (AGN) over a
wide range of cosmic time.
We present here ancillary radio observations at a frequency of 2.3GHz
obtained with the Australia Telescope Compact Array (ATCA). The main
goal of this is to study the radio spectra of an unprecedented large
sample of sources (∼2000 observed, ∼600 detected in both frequencies).
Description:
This readMe file annotates the catalog of sources with measured 1.4GHz
to 2.3GHz spectral indices (Table 2 in the paper),
compiled in the framework of the Australia Telescope Large Area Survey
(ATLAS). It comprises only such sources with unambiguous detections at
both 1.4GHz and 2.3GHz, so no upper or lower limits on the spectral
index based on non-detections are included.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
spix_pub.dat 129 631 ATLAS 2.3GHz source catalogue of the CDF-S and
ELAIS-S1 fields (table2 in the paper)
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See also:
II/253 : Chandra Deep Field South: multi-colour data (Wolf+, 2008)
J/AJ/131/1216 : Faint radio sources in the CDF-S ACS field (Afonso+, 2006)
J/ApJS/179/19 : CDFS survey: 2 Ms source catalogs (Luo+, 2008)
J/AJ/135/1505 : CDFs AGNs X-ray power-law photon index (Saez+, 2008)
J/AJ/132/2409 : Deep ATLAS radio observations of CDFS (Norris+, 2006)
J/ApJS/179/71 : VLA survey of CDF-S I. (Kellermann+, 2008)
J/ApJS/179/95 : VLA survey of CDF-S. II. (Mainieri+, 2008)
J/ApJ/698/740 : VLA survey of CDF-S. III. (Tozzi+, 2009)
J/ApJS/195/10 : The CDF-S survey: 4Ms source catalogs (Xue+, 2011)
J/AJ/127/3075 : Mid-infrared population of ELAIS-S1 sample (La Franca+, 2004)
J/A+A/457/501 : XMM-Newton survey of the ELAIS-S1 field (Puccetti+, 2006)
J/A+A/476/151 : SWIRE ELAIS-S1 IR-peak galaxy IR fluxes (Berta+, 2007)
J/A+A/488/417 : XMM-Newton survey of ELAIS-S1 field. II. (Feruglio+, 2008)
J/AJ/135/1276 : ATLAS radio observations of ELAIS-S1 (Middelberg+, 2008)
J/ApJ/703/1778 : Spitzer sources in SWIRE/XMM/ELAIS-S1 field (Sacchi+, 2009)
Byte-by-byte Description of file: spix_pub.dat
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Bytes Format Units Label Explanations
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1 A1 --- Fld [CE] Field: C for CDF-S or E for ELAIS-S1
3- 7 A5 --- Name Source designation, NNNCN, within the field
10- 18 F9.6 deg RAdeg Right ascension in decimal degrees (J2000)
20- 29 F10.6 deg DEdeg Declination in decimal degrees (J2000)
31- 37 F7.3 mJy S1.4hi Integrated flux density at 1.4GHz in
high resolution map
39- 43 F5.3 mJy e_S1.4hi Error of integrated flux density at 1.4GHz
in high resolution map
45- 52 F8.4 mJy S1.4lo Integrated flux density at 1.4GHz in
low resolution map
54- 59 F6.4 mJy e_S1.4lo Error of integrated flux density at 1.4GHz
in low resolution map
61- 67 F7.5 mJy rms1.4 Local rms noise at 1.4GHz in low resolution map
69- 77 F9.5 mJy S2.3 Integrated flux density at 2.3GHz
79- 85 F7.5 mJy e_S2.3 Error of integrated flux density at 2.3GHz
87- 94 F8.6 mJy rms2.3 Local rms noise at 2.3GHz
96-104 F9.6 --- Spix 1.4GHz (low-res) to 2.3GHz spectral index
106-113 F8.6 --- e_Spix Error of spectral index
115-122 F8.5 --- z ? Spectroscopic redshift
124-129 A6 --- Class Spectral classification (1)
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Note (1): Classifications from Mao et al. (2012, MNRAS, accepted):
SF = optical spectrum dominated by star formation activity
AGN = optical spectrum typical for AGN
(e.g. AGNe for and AGN with characteristic emission lines)
E = spectrum is that of an early-type galaxy and hence the radio
emission must originate from an AGN hosted by it
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Acknowledgements:
Peter-Christian Zinn, zinn(at)astro.rub.de
(End) P.-C. Zinn [Ruhr-Univ. Bochum, Germany], P. Vannier [CDS] 12-Jul-2012