J/MNRAS/415/2708 10C survey of radio sources at 15.7GHz (Davies+, 2011)
10C survey of radio sources at 15.7 GHz. II. First results.
Davies M.L., Franzen T.M.O., Waldram E.M., Grainge K.J.B., Hobson M.P.,
Hurley-Walker N., Lasenby A., Olamaie M., Pooley G.G., Riley J.M.,
Rodriguez-Gonzalvez C., Saunders R.D.E., Scaife A.M.M., Schammel M.P.,
Scott P.F., Shimwell T.W., Titterington D.J., Zwart J.T.L.
<Mon. Not. R. Astron. Soc., 415, 2708-2722 (2011)>
=2011MNRAS.415.2708D 2011MNRAS.415.2708D
ADC_Keywords: Radio sources ; Surveys ; Radio continuum
Keywords: catalogues - surveys - radio continuum: galaxies -
radio continuum: general
Abstract:
In a previous paper (Paper I, Franzen et al., 2011MNRAS.415.2699F 2011MNRAS.415.2699F),
the observational, mapping and source-extraction techniques used for
the Tenth Cambridge (10C) Survey of Radio Sources were described.
Here, the first results from the survey, carried out using the
Arcminute Microkelvin Imager Large Array (LA) at an observing
frequency of 15.7GHz, are presented. The survey fields cover an area
of ∼27deg2 to a flux-density completeness of 1mJy. Results for some
deeper areas, covering ∼12deg2, wholly contained within the total
areas and complete to 0.5mJy, are also presented. The completeness for
both areas is estimated to be at least 93 per cent. The 10C survey is
the deepest radio survey of any significant extent (≳0.2deg2) above
1.4GHz.
Description:
The 10C survey of radio sources is being made with the Arcminute
Microkelvin Imager (AMI) Large Array at 15.7GHz and a resolution of
approximately 30-arcsec. The regions surveyed correspond to the fields
chosen for the CMB observations of the AMI Small Array. The survey
fields cover an area of ∼27deg2 complete to ∼1.0mJy. Results for
some deeper areas, covering ∼12deg2, wholly contained within the
total areas and complete to 0.5mJy are also included. The source
catalogue contains a total of 1897 sources.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
10c.dat 151 1897 The 10C source list of 1897 sources
table2.dat 26 46 The centre positions of the exclusion zones
around bright sources and their radii
table3.dat 63 10 *The areas complete to 1mJy
table4.dat 63 12 *The areas complete to 0.5mJy
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Note on table3.dat, table4.dat: The completeness in both cases is estimated to
to be at least 93%. The position accuracy is estimated to be better than 10".
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See also:
J/MNRAS/354/485 : Radio flux of 15-GHz 9C survey (Bolton+, 2004)
J/MNRAS/379/1442 : Multifrequency observations of 9C sources (Waldram+, 2007)
J/MNRAS/342/915 : 9C survey at 15GHz (Waldram+, 2003)
J/MNRAS/404/1005 : Deep 15GHz survey (9C continued) (Waldram+, 2010)
Byte-by-byte Description of file: 10c.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [10C]
4- 17 A14 --- 10C 10C source designation (JHHMMSS+DDMMSS)
20- 22 A3 --- --- [10C]
23- 36 A14 --- Group 10C group designation (JHHMMSS+DDMMSS)
37 A1 --- --- [(]
38 I1 --- N ? Number of components in group
39 A1 --- --- [)]
42- 43 I2 h RAh Peak right Ascension J2000
45- 46 I2 min RAm Peak right Ascension J2000
48- 51 F4.1 s RAs Peak right Ascension J2000
54 A1 --- DE- Peak declination sign J2000
55- 56 I2 deg DEd Peak declination J2000
58- 59 I2 arcmin DEm Peak declination J2000
61- 62 I2 arcsec DEs Peak declination J2000
65- 70 F6.2 mJy Spk Peak flux density at 15.7GHz
73- 77 F5.2 mJy e_Spk Error on peak flux density
80- 81 I2 h RAIh ? Centroid right Ascension J2000 (2)
83- 84 I2 min RAIm ? Centroid right Ascension J2000 (2)
86- 89 F4.1 s RAIs ? Centroid right Ascension J2000 (2)
92 A1 --- DEI- ? Centroid declination sign J2000 (2)
93- 94 I2 deg DEId ? Centroid declination J2000 (2)
96- 97 I2 arcmin DEIm ? Centroid declination J2000 (2)
99-100 I2 arcsec DEIs ? Centroid declination J2000 (2)
103-108 F6.2 mJy Sint ? Integrated flux density at 15.7GHz
111-115 F5.2 mJy e_Sint ? Error on integrated flux density
118-121 F4.1 arcsec eCrit ? Critical value of the major axis (3)
124-128 F5.1 arcsec eMaj ? Major axis after deconvolution
131-135 F5.1 arcsec eMin ? Minor axis after deconvolution
138-142 F5.1 deg PA ? Position angle of major axis
145 A1 --- t [PE] Point or Extended source
148 A1 --- f_t [*] Poor gaussian fit (1)
151 A1 --- Reg [DSN] Region: D=deep, S=shallow, N=other
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Note (1): the asterisk (*) indicates that the point-source response could
not be well approximated as an elliptical Gaussian and that therefore
the results from the Gaussian-fitting must be treated with caution
Note (2): relevant for extended sources
Note (3): the critical value of the major axis ecrit id the value above
which the source is defined as extended.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right Ascension J2000 of bright region
4- 5 I2 min RAm Right Ascension J2000 of bright region
7- 10 F4.1 s RAs Right Ascension J2000 of bright region
12 A1 --- DE- Declination sign J2000 of bright region
13- 14 I2 deg DEd Declination J2000 of bright region
16- 17 I2 arcmin DEm Declination J2000 of bright region
19- 20 I2 arcsec DEs Declination J2000 of bright region
22- 26 F5.2 arcmin Rad Radius of excluded bright region
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Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Field Field
12- 21 A10 --- RA1 Right ascension range, lower value (hh:mm:ss.s)
23- 24 A2 --- --- [to]
26- 35 A10 --- RA2 Right ascension range, upper value (hh:mm:ss.s)
37- 45 A9 --- DE1 Declination range, lower value (+dd:mm:ss)
47- 48 A2 --- --- [to]
50- 58 A9 --- DE2 Declination range, upper value (+dd:mm:ss)
60- 63 F4.2 deg+2 Area Area
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History:
From electronic version of the journal
References:
Franzen et al., Paper I 2011MNRAS.415.2699F 2011MNRAS.415.2699F
(End) Patricia Vannier [CDS] 21-May-2013