5 GHz Observations of Intraday Variability in AGNs

Details 5 GHz Observations of Intraday Variability in AGNs 5 GHz Observations of Intraday Variability in AGNs

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006chjas...6b.337s&link_type=abstract

Chinese Journal of Astronomy and Astrophysics, Supplement, Volume 6, Issue S2, Proceedings of the 2005 Lake Hanas International

Astronomy and Astrophysics

Astrophysics

Galaxies: Active Galactic Nuclei, Intraday Variability

Scientific paper

We present the results of intraday variability observations in compact extragalactic radio sources with the 25 m radio telescope of Urumqi Astronomical Observatory at 5 GHz. In total we have observed 116 flat-spectrum sources, of these, 17 show IDV. We present here a summary table of the results, as well as the light curves and structure functions of a few sources. Either interstellar scintillation or an intrinsic origin could be the cause of the variability in these IDV sources. Further observations over a longer time scale are needed to explain the IDV.

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