VIII/5 Bright Extragalactic Radio Sources (1Jy) (Kuehr+, 1981)
Catalog of Extragalactic Radio Sources Having Flux Densities greater than 1 Jy at 5 GHz Kuehr H., Witzel A., Pauliny-Toth I.I.K., Nauber U. <Astron. Astrophys. Suppl. 45, 367 (1981)> =1981A&AS...45..367K
ADC_Keywords: Galaxies, radio ; Galaxy catalogs ; Radio sources Abstract: The catalog is a compilation of 518 extragalactic radio sources with flux densities greater than 1 Jy at 5 GHz. It contains sources from the NRAO-MPI 5-GHz Strong Source Surveys and from re-observation at 5 GHz of sources found in the Parkes 2.7-GHz surveys. All sources were found in 9.811 sr covered by the two surveys. This is essentially the whole sky, excluding the galactic plane (latitudes less than 10 degrees) and the Magellanic Clouds. The catalog includes radio flux densities, radio positions, object classes, visual magnitudes, redshifts, and spectral indices. Introduction: Codes for the position references are listed in this document in the appendix. In the main file, errors are given for all radio positions, flux densities, spectral indices, and function coefficients. See the original paper for discussions of the completeness of the catalog, of the compilation of the flux density data, and of the fitting of simple analytic functions to the spectra. The 1Jy catalog lists information on 518 objects with one to sixteen flux density values for each source. The file sources.dat lists the complete header information for each object. This line has been removed from catalog.dat. There are at most four density values in each record. Records containing fewer than four measurements are filled with blanks on the right. The first word of the file catalog.dat contains the id for the object. refs.dat contains a numerically sorted list of the radio source catalogs cited in the flux density measurement records. For each source catalog the original reference or references (usually one, but in one case as many as three) are listed, as well as the pertinent characteristics of the catalog. When more than one line was needed for a reference up to four continuation lines were used. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file sources.dat 124 518 List of the 518 sources of the sample fluxes.dat 36 8566 The flux data for the sources refs.dat 126 187 References
Byte-by-byte Description of file: sources.dat
Bytes Format Units Label Explanations
1- 8 A8 --- 1Jy *Source name 10- 16 A7 --- 3C *3C name 18- 19 I2 h RAh Right Ascension (RA) (1950.0) hours 20- 21 I2 min RAm RA (1950.0) minutes 22- 26 F5.2 s RAs RA (1950.0) seconds 27- 31 F5.2 s e_RAs Error in RA 33 A1 --- DE- Declination sign 34- 35 I2 deg DEd Declination (DE) sign 36- 37 I2 arcmin DEm DE minutes 38- 41 F4.1 arcsec DEs DE seconds 42- 46 F5.1 arcsec e_DEs Error in DE 48- 49 A2 --- PosRef *Position reference 50- 55 F6.1 deg GLAT Galactic latitude 57- 59 A3 --- Class *Object class 60- 64 F5.1 mag Vmag *?Visual magnitude 65- 70 F6.3 --- z *?Redshift 71- 76 F6.2 --- alpha *?Spectral index 77- 80 F4.2 --- e_alpha ?Mean error on alpha 82- 84 A3 --- Fct *Function type 85- 91 F7.2 --- A *?Coefficient A 92- 97 F6.2 --- e_A ?A error 98-103 F6.2 --- B *?Coefficient B 104-107 F4.2 --- e_B ?B error 108-115 F8.2 --- C *?Coefficient C 116-121 F6.2 --- e_C ?C error 122-124 I3 --- D *?Coefficient D
Note on 1Jy: The 1Jy contains sources from the combined NRAO-MPI 5 GHz Strong Source Survey and Parkes 2.7 GHz Surveys. This is a coordinate-based naming system. Note on 3C: If the object was listed in the 3rd Cambridge Radio Catalog (Bennett 1961; 3C), then the full 3C designation is here. If not, then this field is blank. (see e.g. 3CR Catalog VIII/1) Note on PosRef: The positions listed for the object come either from radio-interferometry measurements (usually) or from the original surveys (occasionally). This two-letter code indicates the source of the coordinates and corresponds to those listed in the Appendix. Note on Class: If the object has been optically identified, this gives the class of the object as a three character code as described in the following. If it has not, this field is blank. QSO = Quasar GAL = Radio galaxy BL = BL Lacertae object EF = Empty field CF = Confused field (i.e., more than one object in the field) Note on Vmag and z: From Veron and Veron (1979) and Kuehr (1980). Note on alpha: The two point spectral index . . . as determined between 2700 MHz and 5000 MHz. The spectral index is defined as alpha in S(v) ∝ valpha. Note on Fct, A, B, C, D: For sources with flux density measurements at more than three frequencies, an attempt was made to fit a simple analytic function to the spectrum. This field contains one of four values depending on the result of this fit: LIN = The spectrum was successfully fitted by a straight line of the form log(S) = A + B.log(v) In this case, coefficients C and D are blank. EXP = The spectrum was fitted by a function of the type log(S) = A + B.log(v) + C.exp(D.log(v)). All four coefficient fields contain data. CPX = Although there were sufficient data points for the source (i.e., more than three) the spectrum could not be satisfactorily fitted with either of the above functional forms. Such a spectrum was designated complex because it would not be physically meaningful to devise some general analytic form to fit any spectral measurements (i.e. of variable sources whose spectra are generally complex). All four coefficient fields are blank. N<4 = There were data for no more than three frequencies and consequently no fit was attempted. All coefficient fields are blank.
Byte-by-byte Description of file: fluxes.dat
Bytes Format Units Label Explanations
1- 8 A8 --- 1Jy Source name 10- 14 I5 MHz Freq Frequency 15 A1 --- --- A colon 16- 23 F8.2 Jy S *Flux density 24- 31 F8.2 Jy e_S *Flux density error 33- 35 I3 --- r_S *[1/909]? Reference number 36 A1 --- RefSuf [AB] Reference suffix
Note on S: All flux densities given are on the scale of Baars et al. based on the absolute radio spectrum of Cassiopeia A (1977A&A....61...99B): between 0.3 and 30 GHz it is given by a flux density S(1GHz) = 2723Jy and a spectral index alpha = -0.770 (epoch 1980.0). See Kuehr et al. (1981A&AS...45..367K) for a discussion of the details of the selection and compilation of flux densities. See also refs.dat Note on e_S: Flux density errors were either taken directly from the catalogue or were calculated according to the formulae given there. Note on r_S, RefSuf: This is the code number for the radio source catalog from which the particular flux density measurement came. refs.dat contains the radio source catalogs used and their attributes, sorted by code number. In one case the original catalog listed no source catalog and this field is blank. One source catalog code number (number 94) has three distinct catalogs associated with it, which are differentiated by , A, or B in the RefSuf field. In all other cases this field is blank. Note that RefNum values between 212 and 258 are unexplained.
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 3 I3 --- RefNum *[1/910]+=? Reference Number 4 A1 --- RefSuf *[AB*] Reference Suffix 5- 11 F7.1 MHz Freq ? Frequency 12- 17 F6.3 --- Factor *? Conversion factor 18- 22 F5.1 Jy FluxLim *? Flux density limit 24- 27 A4 --- Name1 *Name 1 29- 32 A4 --- Name2 *Name 2 34-126 A93 --- Text *Text of the reference
Note on RefNum, RefSuf: The code numbers appearing in the flux density data records. The file is sorted on this datum. In four cases this field is blank, but the suffix RefSuf contains an asterisk. This indicates a source catalog not directly referenced in any flux density measurement, but which the authors included in the Radio Source Catalogues list of the original paper. They are included here for completeness and are the first four source catalogs listed in this file. Code numbers 901-910 correspond to unpublished flux densities. One code number (RefNum=94) has three distinct source catalogs associated with it, which are differentiated by , A, or B in this field. An asterisk in the RefNum field indicates that the source catalog cited was not directly referenced in any flux density measurement, but was listed in the original paper as a source catalog. Note that RefNum values between 212 and 258 are unexplained. Note on Factor: This field gives the factor used to convert the flux densities in the catalog to the scale used (Baars et al., 1977A&A....61...99B). It is a ratio of the Baars et al. flux density scale to that of the source catalog at the frequency specified. Note on FluxLim: Before the data from a given source catalog were included in this compilation the values were checked against data on individual sources from all other catalogs to determine reliability. If there was a cut-off for inclusion from a specific catalog, that value is listed here. Note on Name1, Name2: If the catalog has a common designation (3C, PKS, etc.), it is listed here. Note on Text: The original paper or papers in which the catalog appeared. There are a maximum of three references for a single catalog.
History: The Catalog of Extragalactic Radio Sources Having Flux Densities Greater Than 1 Jy at 5 GHz (1Jy) was sent to the Astronomical Data Center (ADC), NASA Goddard Space Flight Center, by the Centre de Donnees Stellaires (CDS), and received February 10, 1986. The original tape contained a single text file formatted in the same manner as the published catalog; that is, with two header records per object and with the flux density measurements arranged in ascending order in columnar format. The two header records per object were combined into a single record. A FORTRAN program was written to rearrange the flux density measurements from columns into rows, so that the data may now be read in order of ascending flux by using a simple repeating FORTRAN format statement. A FORTRAN program was run that checked the validity of each field according to its data type and value. ADC personnel created a separate file for the radio source catalogs. The data for this file were taken from Kuehr et al. (1981). This work was supervised by Wayne W. Warren who also wrote the original document. To permit every line in the catalog to be read with the same format, the undersigned removed the header lines into a separate file (sources.dat) and entered the source id in the first field of each record in catalog.dat. She also translated the document from Script to ASCII and rearranged it into the current standard form and altered the format tables appropriately. * Modifications made at CDS, October 1996: the"fluxes" table which contained up to four flux values per row was converted into a normalized table. References: Baars, J. W. M., Genzel, R., Pauliny-Toth, I. I. K., and Witzel, A. 1977, Astron. Astrophys., 61, 99. (1977A&A....61...99B) Bennett, A. S. 1961, Mem. R. A. S., 68, 163. (1962MmRAS..68..163B) Kuehr, H. 1977, Astron. Astrophys. Suppl. Ser., 29, 139. (1977A&AS...29..139K) Kuehr, H. 1980, Ph.D. dissertation, Bonn. Kuehr, H., Witzel, A., Pauliny-Toth, I. I. K., and Nauber, U. 1981, Astron. Astrophys. Suppl. Ser., 45, 367-430. (1981A&AS...45..367K) Veron, M. P. and Veron, P. 1979, Astron. Astrophys. Suppl. Ser., 36, 331. (1979A&AS...36..331V) Appendix: For each position given in the header records of the catalog file there is also given a two letter code indicating the reference for this position. Codes from AA through BL . . . denote positions measured with a radio interferometer, whereas codes SA through SP denote positions from the original survey instrument. The following table defines the codes and the corresponding references. the original survey instrument. AA = VLA calibrator list, Johnston, K., private communication. AB = Adgie, R. L. 1974, Astron. J., 79, 846. AC = Adgie, R. L., Crowther, J. H., Gent, H. 1972, Mon. Not. Roy. Astron. Soc., 159, 233. AD = Adgie, R. L., Gent, H. 1966, Nature, 209, 549. AE = Brandie, G. W., Bridle, A. H. 1974, Astron. J., 79, 903. AF = Bridle, A. H., Fomalont, E. B. 1978, Astron. J., 83, 704. AG = Brosche, P., Wade, C. M., Hjellming, R. M. 1973, Astrophys. J., 183, 805. AH = Cohen, M. H. 1972, Astrophys. Letters, 122, 81 AI = Cohen, A. M., Porcas, R. W., Browne, I. W. A., Daintree, E. J., Walsh, D. 1977, Mem. Roy. Astron. Soc., 84, 1. AJ = Condon, J. J., Hicks, P. D., Jauncey, D. L. 1977, Astron. J., 82, 692. AK = Condon, J. J., Jauncey, D. L., Wright, A. E., 1978, Astron. J., 83, 1036. AL = Douglas, J. N., Bash, F. N., Ghigo, F. D., Moseley, G. F., Torrence, G. W. 1973, Astron. J., 78, 1. AM = Edwards, T., Kronberg, P. P., Menard, G. 1975, Astron. J., 80, 1005. AN = Elsmore, B., Ryle, M. 1976, Mon. Not. Roy. Astron. Soc., 174, 411 AO = Fomalont, E. B., Moffet, A. T. 1971, Astron. J., 76, 5. AP = Right Ascension taken from Fomalont, E. B., Moffet, A. T. 1971, Astron. J., 76, 5. Declination taken from Bolton, J. G., Shimmins, A. J. 1973, Austr. J. Phys. Astrophys. Suppl., 30, 1. AQ = Frater, R. H., Watkinson, A., Retallack, D. S., Goss, W. M. 1976, Mon. Not. Roy. Astron. Soc., 176, 487. AR = Ghigo, F. D. 1977, Astrophys. J. Suppl., 35, 359 AS = Ghigo, F. D., Owen, F. N. 1973, Astron. J., 78, 848. AT = Grueff, G., Vigotti, M. 1975, Astron. Astrophys. Suppl. Ser., 19, 117. AU = Gubbay, J. S. 1978, Astron. J., 83, 697. AV = Haynes, M., Sramek, R. 1975, Astron. J., 80, 673. AW = Hoegbom, J. A., Carlsson, I. 1974, Astron. Astrophys., 34, 341. AX = Hoskins, D. G., Murdoch, H. S., Adgie, R. L., Crowther, J. H., Gent, H. 1974, Mon. Not. Roy. Astron. Soc., 166, 235. AY = Hunstead, R. W., Lasker, B. M., Mintz, B., Smith, M. G. 1971, Austr. J. Phys., 24, 601. AZ = Hunstead, R. W. 1972, Mon. Not. Roy. Astron. Soc., 157, 367. BA = Hunstead, R. W., Lasker, B. M., Mintz, B., Smith, M. G. 1971, Austr. J. Phys., 24, 601. BB = Lasker, B. M., Smith, M. G. 1974, Austr. J. Phys., 27, 13 BC = MacDonald, G. H., Kenderdine, S., Neville, Ann C. 1968, Mon. Not. Roy. Astron. Soc., 138, 259. BD = McEwan, N. J., Browne, I. W. A., Crowther, J. H. 1975, Mem. Roy. Astron. Soc., 80, 1. BE = Owen, F. N., Porcas, R. W., Neff, Susan G. 1978, Astron. J., 83, 1009. BF = Pooley, G. G., Henbest, S. N. 1974, Mon. Not. Roy. Astron. Soc., 176, 487. BG = Sharp, J. R., Bash, F. N. 1975, Astron. J., 80, 335. BH = Veron, M. P., Veron, P., Adgie, R. L., Gent, H. 1976, Astron. Astrophys., 47, 401. BI = Wade, C. M., Miley, G. K. 1971, Astron. J., 76, 101. BJ = Mackay, C. D. 1969, Mon. Not. Roy. Astron. Soc., 145, 31. BK = Pauliny-Toth, I. I. K., Kellerman, K. I., Davis, M. M., Fomalont, E. B., Shaffer, D. B. 1972, Astron. J., 77, 265. BL = NRAO interferometer positions, unpublished. SA = Pauliny-Toth, I. I. K., Kellerman, K. I., Davis, M. M., Fomalont, E. B., Shaffer, D. B. 1972, Astron. J., 77, 265. SB = Pauliny-Toth, I. I. K., Kellerman, K. I. 1972b, Astron. J., 77, 797. SC = Pauliny-Toth, I. I. K., Witzel, A., Preub, E., Kuehr, H., Kellerman, K. I., Fomalont, E. B., Davis, M. M. 1978, Astron. J., 83, 451. SD = Kuehr, H., Pauliny-Toth, I. I. K., Witzel, A., Schmidt J. 1980, Astron. J., (submitted). SE = Wall, J. V., Cannon, R. D. 1973, Austr. J. Phys. Astrophys. Suppl., 31, 1. SE = Wall, J. V., Cannon, R. D. 1973, Austr. J. Phys. Astrophys. Suppl., SE = Wall, J. V., Cannon, R. D. 1973, Austr. J. Phys. Astrophys. Suppl., 31, 1. SF = Shimmins, A. J., Bolton, J. G. 1972b, Austr. J. Phys. Astrophys. Suppl., 26, 1. SG = Bolton, J. G., Shimmins, A. J. 1973, Austr. J. Phys. Astrophys. Suppl., 30, 1. SH = Shimmins, A. J., Bolton, J. G. 1974, Austr. J. Phys. Astrophys. Suppl., 32, 1. SI = Bolton, J. G., Shimmins, A. J., Wall, J. V. 1975, Austr. J. Phys. Astrophys. Suppl., 34, 1. SJ = Bolton, J. G., Butler, P. W. 1975, Austr. J. Phys. Astrophys. Suppl., 34, 33. SK = Wall, J. V., Shimmins, A. J., Bolton, J. G. 1975, Austr. J. Phys. Astrophys. Suppl., 34, 55. SL = Wall, J. V., Wright, A. E., Bolton, J. G. 1976, Austr. J. Phys. Astrophys. Suppl., 39, 1. SM = Wright, A. E., Savage, A., Bolton, J. G. 1977, Austr. J. Phys. Astrophys. Suppl., 41, 1. SN = Savage, A., Wright, A. E., Bolton, J. G. 1977, Austr. J. Phys. Astrophys. Suppl., 44, 1. SO = Bolton, J. G., Wright, A. E., Savage, A. 1979, Austr. J. Phys. Astrophys. Suppl., 46, 1. SP = Shimmins, A. J., Clarke, Margaret E., Ekers, R. D. 1966, Austr. J. Phys., 19, 649.
(End) Nancy G. Roman [ADC/SSDOO] (July-22-1995), revised [CDS] 25-Oct-1996
|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|