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J/AZh/74/812                    102MHz radio source survey   (Tyul'bashev 1997)

Analysis of compact radio sources using 102 MHz interplanetary scintillation observations Tyul'bashev S.A. <Astron. Zh., 74, 812 (1997)> =1997AZh....74..812T (SIMBAD/NED BibCode) =1997ARep...41..723T
ADC_Keywords: Radio sources ; Radio lines Abstract: An analysis of 125 radio sources from a 102MHz survey of scintillating sources is presented. These compact (<1") radio sources are identified with radio sources in the most sensitive catalogs currently available. Analysis of the integrated spectra for these objects indicates that the compact sources have steep spectra (α>0.5). There is a tendency for weaker sources to be more compact. The inferred spectral indices for compact sources in the cores of extended objects are on average lower than the integrated values. The most likely candidates for optical counterparts to the compact radio sources from the scintillating source survey are steep-spectrum quasars. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 63 125 Source flux densities, spectral indices, and compactnesses
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name Source name (based on 1950 position) (1) 10- 13 F4.2 Jy rms rms fluctuation for the scintillating source flux density at 102MHz (1) 15- 18 F4.2 Jy S102MHz Flux density at 102MHz (1) 20- 25 F6.3 Jy S151MHz ? Integrated flux density at 151MHz (2) 27- 32 F6.3 Jy S365MHz ? Integrated flux density at 365MHz (3) 34- 38 F5.3 Jy S408MHz ? Integrated flux density at 408MHz (4) 40- 44 F5.3 Jy S1400MHz ? Integrated flux density at 1400MHz (5) 46- 50 F5.3 Jy S4885MHz ? Integrated flux density at 4885MHz (6) 52- 55 F4.2 --- SI ? Spectral index for the integrated spectra 57 A1 --- l_R Limit flag on R 58- 61 F4.2 --- R ? Compactness of the source (7) 63 A1 --- u_R [?] Uncertainty flag on R
Note (1): Data form Artyukh et al., 1996, Cat. VIII/67 Note (2): Fluxes from Ryle & Clarce (1961MNRAS.122..349R) Note (3): Fluxes form Longair (1966MNRAS.133..421L) Note (4): Fluxes from Bennett (1963MmRAS..68..163B) Note (5): Fluxes from Windhorst et al. (1984A&AS..58....1W) Note (6): Fluxes from Windhorst et al. (1984A&AS..58...39W) Note (7): Ratio of the flux density of the scintillating component to the integrated flux density of the source.
History: Prepared via OCR at CDS. * 01-Mar-1999: three errors were detected in the English version (1997ARep...41..723T) by H. Andernach: -> 1 source (0612+396) is missing -> missing l_R flag for 0636+397 -> bad name (1649+485) for 0649+485 References: Artyuh & Tyul'bashev, 1996ARep...40..601A (1996AZh....73..661A)
(End) James Marcout, Patricia Bauer [CDS] 13-Nov-1998
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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