Browsing IIAP Publications by Subject "BL Lacertae objects"

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Characterizing the Optical Nature of the Blazar S5 1803+784 during Its 2020 Flare

Agarwal, A; Pandey, Ashwani; Ozdonmez, Aykut; Ege, Ergun; Avik, Kumar Das; Volkan, Karakulak (IOP Publishing, 2022-07-01)

We report the results from our study of the blazar S5 1803+784 carried out using quasi-simultaneous B, V, R, and I observations from 2020 May to 2021 July on 122 nights. Our observing campaign detected a historically bright ...
The First Gamma-Ray Emitting BL Lacertae Object at the Cosmic Dawn

Paliya, V. S; Dominguez, A; Cabello, C; Cardiel, N; Gallego, J; Siana, B; Ajello, M; Hartmann, D; de Paz, A. G; Stalin, C. S (IOP Publishing, 2020-11-01)

One of the major challenges in studying the cosmic evolution of relativistic jets is the identification of the highredshift (z > 3) BL Lacertae objects (BL Lacs), a class of jetted active galactic nuclei characterized by ...
Optical flux and spectral characterization of the blazar PG 1553 + 113 based on the past 15 years of data

Agarwal, Aditi; Mihov, B; Andruchow, I; Cellone, Sergio A; Anupama, G. C; Agrawal, V; Zola, S; Ergun Ege; Özdönmez, Aykut; Ege, Ergün (Indian Academy of Sciences, 2022-06)

We study flux and spectral variability of the high energy peaked TeV blazar PG 1553 + 113 on diverse timescales using the data collected from 2005 to 2019 which also includes the intensive intra-night monitoring of the ...

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