Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990rmxaa..21..155d&link_type=abstract
Revista Mexicana de Astronomia y Astrofisica, Vol. 21, p. 155 - 157
Astronomy and Astrophysics
Astronomy
2
Variability: Radio Galaxies, Variability: Active Galactic Nuclei
Scientific paper
This work consists in the study of the variability of the nucleus of the peculiar galaxy NGC 5128 (Centaurus A) at the radio continuum frequency of 43 GHz. The data were obtained with the 13.7 m Itapetinga Radiotelescope. The radio source presents a pair of inner radio lobes and a compact variable nucleus. The observational technique used was scans through the inner radio lobes and the nucleus. The quasi-simultaneous measurements of the flux density of each source allowed the authors to derive accurately the relative flux between them, and to obtain the real variability of the nucleus.
Abraham Zulema
de Mello Rabaça Duilia F.
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