81 citations · 161 across the 8 of their papers we have counts for
8 papers
Connection between optical and radio/millimeter flares in blazar OJ287
S. J Qian
Blazar OJ287 is a unique source in which optical outbursts with double-peak structure have been observed quasi-periodically with a cycle of 12yr. It may be one of the best candidat…
Model simulation of optical light curves for blazar OJ287
Shanjie Qian
The light curves of optical outbursts observed in blazar OJ287 during 1983-2015 are analyzed and model-simulated to investigate the nature of its optical radiation. It is shown tha…
A tentative double-jet model for blazar OJ287
Shanjie Qian
We try to propose a tentative relativistic jet model for explaining the entire radio-optical phenomena observed in blazar OJ287, which has been observed quasi-periodically with a c…
A Possible Periodicity in the Radio Lightcurves of 3C454.3
S. J. Qian, N. A. Kudryavtseva, S. Britzen +6
During the period 1966.5 - 2006.2 the 15GHz and 8GHz lightcurves of 3C454.3 (z=0.859) show a qsasi-periodicity of ~12.8 yr (~6.9 yr in the rest frame of the source) with a double-b…
Annual Modulation in the Variability Properties of the IDV-Source 0917+624 ?
L. Fuhrmann, T. P. Krichbaum, G. Cimò +6
There is new evidence which identifies seasonal changes of the variability time scale in intraday variable sources with refractive interstellar scintillation effects. Such a RISS-m…
Annual modulation in IDV of quasar 0917+624 due to Interstellar Scintillation
B. J. Rickett, A. Witzel, A. Kraus +2
The quasar 0917+624 has been one of the best studied intraday variable (IDV) radio sources. However, debate continues as to whether the underlying cause is intrinsic or extrinsic.…