Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978aj.....83..157s&link_type=abstract
Astronomical Journal, vol. 83, Feb. 1978, p. 157-161.
Astronomy and Astrophysics
Astronomy
4
Extragalactic Radio Sources, Surveys, Ultrahigh Frequencies, Decimeter Waves, Flux Density, Northern Hemisphere, Quasars, Southern Hemisphere
Scientific paper
A survey at 8085 MHz of 0.181 sr of sky having absolute values of galactic latitude greater than 10 deg and absolute values of declination greater than or equal to 1.5 deg has revealed 64 sources, 35 of which constitute a sample 85% complete to an 8085-MHz flux-density upper limit of 0.40 Jy. More than two-thirds of the sources can be optically identified, and two-thirds of these appear stellar. The two-point spectral index distribution is spread from -1.0 to +1.0 with a division at 0.5. Few, if any, galaxies have flatter spectra, and few quasars have steeper spectra. The source density for an 8085-MHz flux-density upper limit of 0.5 Jy is 160 + or - 30 sources/sr, which is in excess of that calculated from 5-GHz survey data, but the errors resulting from such small numbers of sources preclude definitive statements. There is no anisotropy of sources between the two galactic hemispheres.
Ewing Martin S.
Seielstad George A.
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