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DOE OSTI · 2425234

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

Jovanović, Miljana D. (ORCID:0000000342983247)·Damljanović, Goran·Taris, François·Gupta, Alok C.·Bhatta, Gopal
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Abstract

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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Jovanović, Miljana D. (ORCID:0000000342983247), Damljanović, Goran, Taris, François, Gupta, Alok C., Bhatta, Gopal. 2023-03-24. Multiband optical variability of a newly discovered 12 blazars sample from 2013–2019. https://doi.org/10.1093/mnras%2Fstad904

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