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Title: Multi-band optical variability studies of Blazars
Authors: Aditi Agarwal
Keywords: Astronomy;Astrophysics;Variability;Photometry;Extragalactic;AGN
Issue Date: Apr-2018
Publisher: Bulletin de la Societe Royale des Sciences de Liege
Citation: Bulletin de la Societe Royale des Sciences de Liege, Vol. 87, pp. 321-324
Abstract: To search for optical variability on a wide range of timescales, we have carried out photometric monitoring of a dozen blazars. CCD magnitudes in B, V, R and I pass-bands were determined for > 10,000f new optical observations from 300 nights made during 2011 – 2016, with an average length of 4 h each, using seven optical telescopes: four in Bulgaria, one in Greece, and two in India. We measured multiband optical flux and colour variations on diverse timescales. Blazar variability studies helped us in understanding their nature and extreme conditions within the emission region. To explain possible physical causes of the observed spectral variability, we also investigated spectral energy distributions using B, V, R, I, J and K pass-band data.
Description: Open Access
ISSN: 0037-9565
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Appears in Collections:IIAP Publications

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