J/MNRAS/421/1644 843MHz MOST ATLAS catalogue (Randall+, 2012)
Spectral index properties of milliJansky radio sources.
Randall K.E., Hopkins A.M., Norris R.P., Zinn P.-C., Middelberg E.,
Mao M.Y., Sharp R.G.
<Mon. Not. R. Astron. Soc., 421, 1644-1660 (2012)>
=2012MNRAS.421.1644R 2012MNRAS.421.1644R
ADC_Keywords: Galaxy catalogs ; Radio sources
Keywords: catalogues - galaxies: active - galaxies: evolution -
radio continuum: galaxies
Abstract:
At the faintest radio flux densities (S1.4<10mJy), conflicting
results have arisen regarding whether there is a flattening of the
average spectral index between a low radio frequency (325 or 610MHz)
and, for example, 1.4GHz. We present a new catalogue of 843-MHz radio
sources in the European Large Area ISO Survey-South 1 field, which
contains the sources, their Australia Telescope Large Area Survey
(ATLAS) counterparts and the spectral index distribution of the
sources as a function of flux density.
Description:
To obtain low-radio-frequency (843-MHz) data within ATLAS, we used the
Molonglo Observatory Synthesis Telescope. We have 31 separate 12-h
observations taken with MOST, which were combined into a single image.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 363 325 843MHz Molonglo Observatory Synthesis Telescope
(MOST) ATLAS catalogue
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See also:
II/290 : SWIRE Photometric Redshift Catalogue (Rowan-Robinson+, 2008)
J/MNRAS/351/1290 : ELAIS: final band-merged catalogue (Rowan-Robinson+, 2004)
J/AJ/135/1276 : ATLAS radio observations of ELAIS-S1 (Middelberg+, 2008)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 I1 h RAh MOST Right ascension (J2000)
3- 4 I2 min RAm MOST Right ascension (J2000)
6- 11 F6.3 s RAs MOST Right ascension (J2000)
13 A1 --- DE- MOST Declination sign (J2000)
14- 15 I2 deg DEd MOST Declination (J2000)
17- 18 I2 arcmin DEm MOST Declination (J2000)
20- 24 F5.2 arcsec DEs MOST Declination (J2000)
26- 37 F12.9 deg RAdeg MOST Right ascension in decimal degrees (J2000)
39- 50 F12.8 deg DEdeg MOST Declination in decimal degrees (J2000)
52- 57 F6.2 mJy F843 843MHz total flux
59- 63 F5.2 mJy e_F843 843MHz total flux error
65- 72 A8 --- --- [ATELAIS_ ]
73- 91 A19 --- ATELAIS ATLAS IAU name of positionally closest ATLAS
source to MOST source
93- 99 A7 --- ATLAS ATLAS ID of single/first ATLAS match to MOST
source
101 A1 --- f_ATLAS [bp-] Flag for blended or single point (1)
103-121 A19 --- ATLAS2 ATLAS IDs of blended sources not listed in
column ATLAS (2)
123-128 F6.2 mJy F1.4 ? 1.4GHz flux density from Middelberg et al.
(2008, Cat. J/AJ/135/1276)
130-134 F5.2 mJy e_F1.4 ? 1.4GHz flux density error from Middelberg
et al. (2008, Cat. J/AJ/135/1276)
136-141 F6.2 mJy F1.4c ? Convolved 1.4GHz flux density from this paper
143-147 F5.2 mJy e_F1.4c ? Convolved 1.4GHz flux density error
149-154 F6.2 mJy F2.3 ? 2.3GHz flux density from Zinn et al.
(in prep.)
156-160 F5.2 mJy e_F2.3 ? 2.3GHz flux density error
162-167 F6.3 --- alpha ? α_fit: three-point spectral index fitted
to available flux densities
169-172 F4.2 --- e_alpha ? error on alpha
174-179 F6.3 --- SpI1 ? Two point spectral index between 843MHz flux
density and convolved 1.4GHz flux density
181-184 F4.2 --- e_SpI1 ? Error on SpIndex1
186-191 F6.3 --- SpI2 ? Two point spectral index between convolved
1.4GHz flux density and 2.3GHz flux density
193-196 F4.2 --- e_SpI2 ? Error on SpIndex2
199-205 A7 --- --- [SWIRE4_ ]
206-224 A19 --- SWIRE4 SWIRE ID
227-234 F8.2 uJy S3.6 ? Spitzer/SWIRE 3.6µm flux density
237-244 F8.2 uJy S4.5 ? Spitzer/SWIRE 4.5µm flux density
247-254 F8.2 uJy S5.8 ? Spitzer/SWIRE 5.8µm flux density
256-263 F8.2 uJy S8.0 ? Spitzer/SWIRE 8µm flux density
266-273 F8.2 uJy S24 ? Spitzer 24µm flux density
275-280 F6.3 mag BJmag ? SuperCOSMOS BJ magnitude
282-286 F5.2 mag Rmag ? R band magnitude from Rowan-Robinson et al.
(2008, Cat. II/290 or 2004, J/MNRS/351/1290)
288-293 F6.3 mag Imag ? ESIS I magnitude
295-301 F7.4 mag zmag ? ESIS z magnitude
303-313 F11.9 --- zph ? Photometric Redshift from Rowan-Robinson
et al. (2008, Cat. II/290 or
2004, J/MNRS/351/1290)
315-363 A49 --- Com Comments
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Note (1): Flag as follows:
b = blended source (multiple 1.4 or 2.3 GHz sources within the MOST beam size)
p = single/point source in MOST and ATLAS
Note (2): Full information on these sources can be found in Middelberg et al.
2008, Cat. J/AJ/135/1276.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 16-Nov-2012