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J/A+A/445/465     ATCA 18.5 and 22GHz fluxes of Kuehr 5GHz sample (Ricci+, 2006)

High-frequency observations of the Kuehr sample and epoch-dependent luminosity function of flat-spectrum quasars. Ricci R., Prandoni I., Gruppioni G, Sault R.J., De Zotti G. <Astron. Astrophys. 445, 465 (2006)> =2006A&A...445..465R
ADC_Keywords: Active gal. nuclei ; Galaxies, radio ; Redshifts Keywords: radio continuum: general - galaxies: nuclei - quasars: general - galaxies: luminosity function, mass function Abstract: We discuss our ATCA 18.5 and 22GHz flux density measurements of Southern extragalactic sources in the complete 5GHz sample of Kuehr et al. (1981, Cat. VIII/5). The high frequency (5-18.5GHz) spectral indices of steep-spectrum sources for which we have 18.5GHz data (66% of the complete sample) are systematically steeper than the low frequency (2.7-5GHz) ones, and there is evidence of an anti-correlation of high-frequency spectral index with luminosity. The completeness of 18.5GHz data is much higher (89%) for flat-spectrum sources (mostly quasars), which also exhibit a spectral steepening. Taking advantage of the almost complete redshift information on flat-spectrum quasars, we have estimated their 5GHz luminosity function in several redshift bins. The results confirm that their radio luminosity density peaks at z_peak about 2.5 but do not provide evidence for deviations from pure luminosity evolution as hinted at by other data sets. A comparison of our 22GHz flux densities with WMAP K-band data for flat-spectrum sources suggests that WMAP flux densities may be low by a median factor of about 1.2. The extrapolations of 5GHz counts and luminosity functions of flat-spectrum radio quasars using the observed distribution of the 5-18.5GHz spectral indices match those derived directly from WMAP data, indicating that the high frequency WMAP survey does not detect any large population of FSRQs with anomalous spectra. Description: ATCA 18.5 and 22GHz flux density measurements of Southern sources in the Kuehr sample. The flag in the last column indicates the reliability of the 18.5GHz measurements. Also listed are the 5GHz flux density and the 2.7-5GHz spectral index (from Kuehr et al. 1981, Cat. VIII/5), the source type and redshift (from Stickel et al., 1994, Cat. J/A+AS/105/211, plus some redshifts from NED). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 62 249 Radio fluxes, optical IDs and redshifts of Southern Kuehr sources
See also: VIII/5 : Bright Extragalactic Radio Sources (1Jy) (Kuehr+, 1981) J/A+AS/105/211 : Optical identification status of 1Jy catalogue (Stickel+ 1994) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 A8 --- 1Jy 1Jy Source name (HHMM-DDd) 10- 14 F5.2 Jy S5GHz 5GHz flux density from Kuehr catalog 16- 20 F5.2 --- alpha 2.7-5GHz spectral index 22- 27 A6 --- Class Class of object (GALaxy, QSO, BL Lac) 29- 34 F6.4 --- z ?=- Redshift 36- 41 F6.3 Jy S18.5GHz 18.5GHz ATCA flux density 43- 47 F5.3 Jy e_S18.5GHz 18.5GHz ATCA flux density error 49- 54 F6.3 Jy S22GHz 22GHz ATCA flux density 56- 60 F5.3 Jy e_S22GHz 22GHz ATCA flux density error 62 A1 --- Ext [R-] Source extension label: R (resolved)
Acknowledgements: Roberto Ricci, Roberto.Ricci(at)
(End) Roberto Ricci [ATNF, Australia], Patricia Vannier [CDS] 22-Sep-2005
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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