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J/MNRAS/171/475  The 5C5 survey of radio sources.            (Pearson, 1975)

The 5C5 survey of radio sources. Pearson T.J. <Mon. Not. R. Astron. Soc. 171, 475 (1975)> =1975MNRAS.171..475P
ADC_Keywords: Surveys ; Radio sources ; Radio continuum Description: This catalog contains the 5C5 survey of radio sources, one of a series of deep surveys made at 408 MHz (HPBW 80"x109") and 1407 MHz (HPBW 23"x31") with the One-Mile telescope at Cambridge. The 5C5 survey was centered on 09h40m+47d (B1950) and contains 252 sources stronger than 8.7 mJy at 408 MHz and 1.8 mJy at 1407 MHz. The flux densities are on the KPW scale (Kellermann et al. 1969ApJ...157....1K), and were based on 3C48. This table was originally published in Pearson, T.J (1975MNRAS.171..475P) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file 5c5.dat 129 252 5C5 Survey of Radio Sources (RA: 9.5h-9.9h; DEC: 44.5° -49.5° )
See also: J/MNRAS/182/273 : 5C6 and 5C7 Survey of Radio Sources J/MNRAS/200/747 : 5C12 Survey of Radio Sources Byte-by-byte Description of file: 5c5.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name Name of source (1) 9- 10 I2 h RAh Right Ascension (B1950) (hour) (2) 11- 12 I2 min RAm Right Ascension (B1950) (min) 13- 17 F5.2 s RAs Right Ascension (B1950) (sec) 18 A1 --- DE- Declination sign (B1950) (2) 19- 20 I2 deg DEd Declination (B1950) (deg) 21- 22 I2 arcmin DEm Declination (B1950) (arcmin) 23- 26 F4.1 arcsec DEs Declination (B1950) (arcsec) 28- 30 F3.1 arcsec pos_err ? Positional uncertainty in R.A. (2) 31 A1 --- ext_flag [ e] Flagged 'e' if extended (2) 33- 36 I4 mJy S408 ? 408 MHz flux density (3) 38- 40 I3 mJy e_S408 ? Error on 408 flux density (3) 41 A1 --- f_S408 [ *] '*' flux density is almost certainly wrong (3) 43- 45 F3.2 --- att_408 ? Envelope attenuation at 408 MHz (3) 47- 51 F5.1 mJy S1407 ? Flux density at 1407 MHz (4) 53- 56 F4.1 mJy e_S1407 ? Error on 1407 flux density (4) 57 A1 --- f_S1407 [ *] '*' flux density is almost certainly wrong (4) 59- 61 F3.2 --- att_1407 ? Envelope attenuation at 1407 MHz (4) 63- 67 F5.2 --- Sp-Index ? Spectral index between 408 and 1407 MHz (5) 69-129 A61 --- comments Comments on the source (6)
Note (1): The serial number of the 5C5 source is given in this column. The sources in each survey are numbered in increasing order of right ascension. Occasionally two sources are grouped together in the lists, and given suffixes a, b; this is done either when there are two peaks of emission at 1407 MHz but only one at 408 MHz, or when there is an obvious association between the two sources. The IAU nomenclature has not been adopted because this position-based system would be ambiguous for some of the 5C sources which are very close together. The authors recommend that when it is necessary to refer to a source by its 5C name in a context in which its position is not obvious, the 5C name should be accompanied by the IAU name in parentheses, thus: 5C5.103 (0938+467). Note (2): These columns give the B1950.0 right ascension and declination of the radio source. Positions measured at 1407 MHz are flagged with an asterisk ('*') in the ext_flag column and are accurate to an extra decimal place in right ascension and declination (2 decimal places in RA and 1 in declination). For extended sources, the position given is the peak of emission, the positional error (pos_err) is listed as blank and 'ext_flag' is marked 'e'. Note (3): These columns give flux density information at 408 MHz. The flux density is given in the S408 column. The rms uncertainty in the 408 MHz flux density is given in the e_S408 column, which includes a contribution of 3 percent uncertainty in the envelope correction. The att_408 column gives the envelope attenuation factor at 408 MHz (multiply S by this factor to recover S' and hence the signal-to- noise ratio). An asterisk in the f_S408 column indicates that the uncertainty in flux density is very large because the source lies outside the measured part of the envelope (attenuation factor less than 0.1) These sources are included in the table only for their positions; many of them have been observed in other surveys so it is possible to check the positional accuracy. Note (4): These columns give flux density information at 1407 MHz. The flux density is given in the S1407 column. The rms uncertainty in the 1407 MHz flux density is given in the e_S1407 column, and the att_1407 column gives the envelope attenuation factor at 1407 MHz. An asterisk in the f_S1407 column indicates that the uncertainty in flux density is very large because the source lies outside the measured part of the envelope (attenuation factor less than 0.15) These sources are included in the table only for their positions; many of them have been observed in other surveys so it is possible to check the positional accuracy. Note (5): This column gives the spectral index between 408 and 1407 MHz. Alpha is defined in the sense S ∝ ν. Note (6): This column gives comments on the source. The following abbreviations are used: ARG Half-Mile telescope Survey at 1421 MHz (Gillespie, 1975MNRAS.170..541G) KPD 5 GHz KPD survey (Kellermann et al. 1968)
History: "The catalogue was originally archived as A068 by H. Andernach () and the ADS documentation prepared in collaboration with Carolyn Stern Grant ()." References: References: Kellermann, K.I, Pauliny-Toth, I.I.K. & Davies, M.M. 1968, Astrophys. Lett., 2, 105.
(End) Patricio Ortiz [CDS] 06-Apr-1999
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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