DETECTION OF POSSIBLE QUASI-PERIODIC OSCILLATIONS IN THE LONG-TERM OPTICAL LIGHT CURVE OF THE BL LAC OBJECT OJ 287

ABSTRACT The detection of periodicity in the broadband non-thermal emission of blazars has so far been proven to be elusive. However, there are a number of scenarios that could lead to quasi-periodic variations in blazar light curves. For example, an orbital or thermal/viscous period of accreting ma...

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Veröffentlicht in:	The Astrophysical journal 2016-11, Vol.832 (1), p.47
Hauptverfasser:	Bhatta, G., Zola, S., Stawarz, ., Ostrowski, M., Winiarski, M., Og oza, W., Dró d, M., Siwak, M., Liakos, A., Kozie -Wierzbowska, D., Gazeas, K., Debski, B., Kundera, T., Stachowski, G., Paliya, V. S.
Format:	Artikel
Sprache:	eng
Schlagworte:	ACCRETION DISKS accretion, accretion disks Astrophysics ASTROPHYSICS, COSMOLOGY AND ASTRONOMY BL LACERTAE OBJECTS BL Lacertae objects: individual (OJ 287) BLACK HOLES Blazars Broadband DETECTION EMISSION Emissions GALAXIES galaxies: active galaxies: jets Light curve Observatories OSCILLATIONS Periodic variations PERIODICITY PLASMA Quasi-Periodic Oscillations radiation mechanisms: non-thermal Supermassive black holes Thermal emission Time series TIME-SERIES ANALYSIS Wavelet analysis Z transforms
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