J/MNRAS/410/2690 CRATES sources at 30 GHz (Peel+, 2011)
One centimetre receiver array-prototype observations of the CRATES
sources at 30 GHz.
Peel M.W., Gawronski M.P., Battye R.A., Birkinshaw M., Browne I.W.A.,
Davis R.J., Feiler R., Kus A.J., Lancaster K., Lowe S.R., Pazderska B.M.,
Pazderski E., Roukema B.F., Wilkinson P.N.
<Mon. Not. R. Astron. Soc., 410, 2690-2697 (2011)>
=2011MNRAS.410.2690P 2011MNRAS.410.2690P
ADC_Keywords: Radio sources; Active gal. nuclei
Keywords: astronomical data bases: miscellaneous - galaxies: active -
galaxies: statistics - cosmology: observations
Abstract:
Knowledge of the population of radio sources in the range ∼2-200GHz
is important for understanding their effects on measurements of the
cosmic microwave background power spectrum. We report measurements of
the 30-GHz flux densities of 605 radio sources from the Combined Radio
All-sky Targeted Eight-GHz Survey (CRATES), which have been made with
the One Centimetre Receiver Array-prototype (OCRA-p) on the Torun
32-m telescope. The flux densities of sources that were also observed
by Wilkinson Microwave Anisotropy Probe (WMAP) and previous OCRA
surveys are in broad agreement with those reported here, however a
number of sources display intrinsic variability. We find a good
correlation between the 30GHz and Fermi gamma-ray flux densities for
common sources. We examine the radio spectra of all observed sources
and report a number of gigahertz-peaked and inverted spectrum sources.
These measurements will be useful for comparison to those from the Low
Frequency Instrument of the Planck satellite, which will make some of
its most sensitive observations in the region covered here.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 74 605 Flux densities for the CRATES sources from
erratum (2011, MNRAS, 415, 2974)
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See also:
VIII/72 : CLASS survey of radio sources (Myers+, 2003)
J/ApJS/171/61 : All-Sky Survey of Flat-Spectrum Radio Sources (Healey+, 2007)
J/A+A/474/1093 : 30GHz flux densities of CJF sources (Lowe+, 2007)
J/ApJS/188/405 : Fermi-LAT first source catalog (1FGL) (Abdo+, 2010)
http://www.jodrellbank.manchester.ac.uk/research/ocra/crates : CRATES Home Page
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Name (JHHMM+DDMM)
12- 13 I2 h RAh Right ascension (J2000)
15- 16 I2 min RAm Right ascension (J2000)
18- 21 F4.1 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24- 25 I2 deg DEd Declination (J2000)
27- 28 I2 arcmin DEm Declination (J2000)
30- 33 F4.1 arcsec DEs Declination (J2000)
35- 40 F6.1 mJy S1.4 1.4GHz flux density
42- 45 I4 mJy S4.8 4.8GHz flux density
47- 52 F6.1 mJy S8.4 4.8GHz flux density
54- 59 F6.1 mJy S30 30GHz flux density
61- 65 F5.1 mJy e_S30 rms uncertainty on S30
67- 74 A8 --- Notes Notes (1)
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Note (1): Notes as follows:
e = source shows extension and/or multiple components
NC = source where multiple components listed in CRATES have been merged
together, where 'N' is the number of components.
w = WMAP sources (Gold et al. 2011ApJS..192...15G 2011ApJS..192...15G, preprint 1001.4555)
c = CJF sources (Taylor et al. 1996ApJS..107...37T 1996ApJS..107...37T;
Lowe et al. 2007, Cat. J/A+A/474/1093)
f = Fermi point sources (Abdo et al. 2010, Cat. J/ApJS/188/405)
g = Potential gigahertz-peaked spectrum (GPS) sources
We note that there are two CLASS lens systems within the sample -
J1609+6532 and J1938+6648 (Browne et al. 2003, Cat. VIII/72).
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 12-Sep-2011