http://arxiv.org/abs/2304.03664
Here we present the first optical photometric monitoring results of a sample of twelve newly discovered blazars from the ICRF – Gaia CRF astrometric link. The observations were performed from April 2013 until August 2019 using eight telescopes located in Europe. For a robust test for the brightness and colour variability, we use Abbe 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.
M. Jovanovic, G. Damljanovic, F. Taris, et. al.
Mon, 10 Apr 23
18/36
Comments: 26 pages, 8 figures, 6 supplement figures, 11 tables, Accepted for publication in MNRAS
You must be logged in to post a comment.