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Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales

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dc.contributor.author Pandey A.
dc.contributor.author Gupta A.C.
dc.contributor.author Kurtanidze S.O.
dc.contributor.author Wiita P.J.
dc.contributor.author Damljanovic G.
dc.contributor.author Bachev R.
dc.contributor.author Zhang J.
dc.contributor.author Kurtanidze O.M.
dc.contributor.author Darriba A.
dc.contributor.author Chigladze R.A.
dc.contributor.author Latev G.
dc.contributor.author Nikolashvili M.G.
dc.contributor.author Peneva S.
dc.contributor.author Semkov E.
dc.contributor.author Strigachev A.
dc.contributor.author Tiwari S.N.
dc.contributor.author Vince O.
dc.date.accessioned 2021-02-24T20:31:49Z
dc.date.available 2021-02-24T20:31:49Z
dc.date.issued 2020
dc.identifier.issn 0004-637X
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/160727
dc.description.abstract © 2020. The American Astronomical Society. All rights reserved. We report the results of our optical (VRI) photometric observations of the TeV blazar 1ES 0806+524 on 153 nights during 2011-2019 using seven optical telescopes in Europe and Asia. We investigated the variability of the blazar on intraday as well as on long-term timescales. We examined 18 intraday light curves for flux and color variations using the most reliable power-enhanced F-test and the nested ANOVA test. Only on one night was a small, but significant, variation found, in both V-band and R-band light curves. The V-R color index was constant on every one of those nights. Flux density changes of around 80% were seen over the course of these eight years in multiple bands. We found a weighted mean optical spectral index of 0.639 ± 0.002 during our monitoring period by fitting a power law (F ν ∝ ν-α) in 23 optical (VRI) spectral energy distributions of 1ES 0806+524. We discuss different possible mechanisms responsible for blazar variability on diverse timescales.
dc.relation.ispartofseries Astrophysical Journal
dc.title Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales
dc.type Article
dc.relation.ispartofseries-issue 1
dc.relation.ispartofseries-volume 890
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS0004637X-2020-890-1-SID85081556400

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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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