Frequency-dependent core shifts and parameter estimation for the blazar 3C 454.3
نویسندگان
چکیده
منابع مشابه
Frequency-dependent core shifts and parameter estimation for the blazar 3C 454.3
We study the core shift effect in the parsec-scale jet of the blazar 3C 454.3 using the 4.8– 36.8 GHz radio light curves obtained from three decades of continuous monitoring. From a piecewise Gaussian fit to each flare, time lags t between the observation frequencies ν and spectral indices α based on peak amplitudes A are determined. From the fit t ∝ ν1/kr , kr = 1.10 ± 0.18 indicating equipart...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2015
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stv1412