Multiband optical variability of a newly discovered 12 blazars sample from 2013–2019

Jovanović, Miljana D.; Damljanović, Goran; Taris, François; Gupta, Alok C.; Bhatta, Gopal

doi:10.1093/mnras/stad904

Title: Multiband optical variability of a newly discovered 12 blazars sample from 2013–2019

Journal Article · 24 March 2023 · Monthly Notices of the Royal Astronomical Society

DOI: https://doi.org/10.1093/mnras/stad904 · OSTI ID:2425234

; Damljanović, Goran; Taris, François; Gupta, Alok C.; Bhatta, Gopal

ABSTRACT Here we present the first optical photometric monitoring results of a sample of 12 newly discovered blazars from the ICRF – Gaia CRF astrometric link. The observations were performed from April 2013 to August 2019 using eight telescopes located in Europe. For a robust test for the brightness and colour variability, we use Abbé criterion and F-test. Moreover, linear fittings are performed to investigate the relation in the colour-magnitude variations of the blazars. Variability was confirmed in the case of 10 sources; two sources, 1429+249 and 1556+335 seem to be possibly variable. Three sources (1034+574, 1722+119, and 1741+597) have displayed large amplitude brightness change of more than one magnitude. We found that the seven sources displayed bluer-when-brighter variations, and one source showed redder-when-brighter variations. We briefly explain the various AGN emission models which can explain our results.

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Research Organization:: US Department of Energy (USDOE), Washington, DC (United States). Office of Science, Sloan Digital Sky Survey (SDSS)

Sponsoring Organization:: USDOE

OSTI ID:: 2425234

Journal Information:: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 1 Vol. 522; ISSN 0035-8711

Publisher:: Oxford University PressCopyright Statement

Country of Publication:: United States

Language:: English

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Characterizing Long-term Optical Variability Properties of γ-Ray-bright Blazars Bhatta, Gopal The Astrophysical Journal, Vol. 923, Issue 1 https://doi.org/10.3847/1538-4357/ac2819	journal	December 2021
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment Abolfathi, Bela; Aguado, D. S.; Aguilar, Gabriela The Astrophysical Journal Supplement Series, Vol. 235, Issue 2 https://doi.org/10.3847/1538-4365/aa9e8a	journal	April 2018
On the Jet Properties of γ -Ray-loud Active Galactic Nuclei Chen, Liang The Astrophysical Journal Supplement Series, Vol. 235, Issue 2 https://doi.org/10.3847/1538-4365/aab8fb	journal	April 2018
Two New Catalogs of Blazar Candidates in the WISE Infrared Sky D’Abrusco, Raffaele; Álvarez Crespo, Nuria; Massaro, Francesco The Astrophysical Journal Supplement Series, Vol. 242, Issue 1 https://doi.org/10.3847/1538-4365/ab16f4	journal	May 2019
Spectral Properties of Quasars from Sloan Digital Sky Survey Data Release 14: The Catalog Rakshit, Suvendu; Stalin, C. S.; Kotilainen, Jari The Astrophysical Journal Supplement Series, Vol. 249, Issue 1 https://doi.org/10.3847/1538-4365/ab99c5	journal	July 2020
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