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Multiwavelength Variability of BL Lacertae Measured with High Time Resolution

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dc.contributor.author Weaver Z.R.
dc.contributor.author Williamson K.E.
dc.contributor.author Jorstad S.G.
dc.contributor.author Marscher A.P.
dc.contributor.author Larionov V.M.
dc.contributor.author Raiteri C.M.
dc.contributor.author Villata M.
dc.contributor.author Acosta-Pulido J.A.
dc.contributor.author Bachev R.
dc.contributor.author Baida G.V.
dc.contributor.author Balonek T.J.
dc.contributor.author Benítez E.
dc.contributor.author Borman G.A.
dc.contributor.author Bozhilov V.
dc.contributor.author Carnerero M.I.
dc.contributor.author Carosati D.
dc.contributor.author Chen W.P.
dc.contributor.author Damljanovic G.
dc.contributor.author Dhiman V.
dc.contributor.author Dougherty D.J.
dc.contributor.author Ehgamberdiev S.A.
dc.contributor.author Grishina T.S.
dc.contributor.author Gupta A.C.
dc.contributor.author Hart M.
dc.contributor.author Hiriart D.
dc.contributor.author Hsiao H.Y.
dc.contributor.author Ibryamov S.
dc.contributor.author Joner M.
dc.contributor.author Kimeridze G.N.
dc.contributor.author Kopatskaya E.N.
dc.contributor.author Kurtanidze O.M.
dc.contributor.author Kurtanidze S.O.
dc.contributor.author Larionova E.G.
dc.contributor.author Matsumoto K.
dc.contributor.author Matsumura R.
dc.contributor.author Minev M.
dc.contributor.author Mirzaqulov D.O.
dc.contributor.author Morozova D.A.
dc.contributor.author Nikiforova A.A.
dc.contributor.author Nikolashvili M.G.
dc.contributor.author Ovcharov E.
dc.contributor.author Rizzi N.
dc.contributor.author Sadun A.
dc.contributor.author Savchenko S.S.
dc.contributor.author Semkov E.
dc.contributor.author Slater J.J.
dc.contributor.author Smith K.L.
dc.contributor.author Stojanovic M.
dc.contributor.author Strigachev A.
dc.contributor.author Troitskaya Y.V.
dc.contributor.author Troitsky I.S.
dc.contributor.author Tsai A.L.
dc.contributor.author Vince O.
dc.contributor.author Valcheva A.
dc.contributor.author Vasilyev A.A.
dc.contributor.author Zaharieva E.
dc.contributor.author Zhovtan A.V.
dc.date.accessioned 2021-02-24T20:31:50Z
dc.date.available 2021-02-24T20:31:50Z
dc.date.issued 2020
dc.identifier.issn 0004-637X
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/160729
dc.description.abstract © 2020. The American Astronomical Society. All rights reserved.. In an effort to locate the sites of emission at different frequencies and physical processes causing variability in blazar jets, we have obtained high time-resolution observations of BL Lacertae over a wide wavelength range: with the Transiting Exoplanet Survey Satellite (TESS) at 6000-10000 Å with 2 minute cadence; with the Neil Gehrels Swift satellite at optical, UV, and X-ray bands; with the Nuclear Spectroscopic Telescope Array at hard X-ray bands; with the Fermi Large Area Telescope at γ-ray energies; and with the Whole Earth Blazar Telescope for measurement of the optical flux density and polarization. All light curves are correlated, with similar structure on timescales from hours to days. The shortest timescale of variability at optical frequencies observed with TESS is ∼0.5 hr. The most common timescale is 13 ± 1 hr, comparable with the minimum timescale of X-ray variability, 14.5 hr. The multiwavelength variability properties cannot be explained by a change solely in the Doppler factor of the emitting plasma. The polarization behavior implies that there are both ordered and turbulent components to the magnetic field in the jet. Correlation analysis indicates that the X-ray variations lag behind the γ-ray and optical light curves by up to ∼0.4 day. The timescales of variability, cross-frequency lags, and polarization properties can be explained by turbulent plasma that is energized by a shock in the jet and subsequently loses energy to synchrotron and inverse Compton radiation in a magnetic field of strength ∼3 G.
dc.relation.ispartofseries Astrophysical Journal
dc.title Multiwavelength Variability of BL Lacertae Measured with High Time Resolution
dc.type Article
dc.relation.ispartofseries-issue 2
dc.relation.ispartofseries-volume 900
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS0004637X-2020-900-2-SID85091014449


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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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