Browsing Aryabhatta Research Institute of Observational Sciences by Subject "BL Lacertae"

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Nature of intranight optical variability of BL Lacertae

Gaur, H., et al.; Gupta, A. C. (Oxford, 2014-01-21)

We present the results of extensive multiband intranight optical monitoring of BL Lacertae during 2010–2012. BL Lacertae was very active in this period and showed intense variability in almost all wavelengths. We extensively ...
Rapid quasi-periodic oscillations in the relativistic jet of BL Lacertae

Jorstad, S. G.,et.al.; Gupta, Alok C. (Nature, 2022-09)

Blazars are active galactic nuclei (AGN) with relativistic jets whose non-thermal radiation is extremely variable on various timescales1–3 . This variability seems mostly random, although some quasi-periodic oscillations ...

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