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Dissecting the long-term emission behaviour of the BL Lac object Mrk 421

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dc.contributor.author Carnerero M.
dc.contributor.author Raiteri C.
dc.contributor.author Villata M.
dc.contributor.author Acosta-Pulido J.
dc.contributor.author Larionov V.
dc.contributor.author Smith P.
dc.contributor.author D'Ammando F.
dc.contributor.author Agudo I.
dc.contributor.author Arévalo M.
dc.contributor.author Bachev R.
dc.contributor.author Barnes J.
dc.contributor.author Boeva S.
dc.contributor.author Bozhilov V.
dc.contributor.author Carosati D.
dc.contributor.author Casadio C.
dc.contributor.author Chen W.
dc.contributor.author Damljanovic G.
dc.contributor.author Eswaraiah E.
dc.contributor.author Forné E.
dc.contributor.author Gantchev G.
dc.contributor.author Gómez J.
dc.contributor.author González-Morales P.
dc.contributor.author Griñón-Marín A.
dc.contributor.author Grishina T.
dc.contributor.author Holden M.
dc.contributor.author Ibryamov S.
dc.contributor.author Joner M.
dc.contributor.author Jordan B.
dc.contributor.author Jorstad S.
dc.contributor.author Joshi M.
dc.contributor.author Kopatskaya E.
dc.contributor.author Koptelova E.
dc.contributor.author Kurtanidze O.
dc.contributor.author Kurtanidze S.
dc.contributor.author Larionova E.
dc.contributor.author Larionova L.
dc.contributor.author Latev G.
dc.contributor.author Lázaro C.
dc.contributor.author Ligustri R.
dc.contributor.author Lin H.
dc.contributor.author Marscher A.
dc.contributor.author Martínez-Lombilla C.
dc.contributor.author McBreen B.
dc.contributor.author Mihov B.
dc.contributor.author Molina S.
dc.contributor.author Moody J.
dc.contributor.author Morozova D.
dc.contributor.author Nikolashvili M.
dc.contributor.author Nilsson K.
dc.contributor.author Ovcharov E.
dc.contributor.author Pace C.
dc.contributor.author Panwar N.
dc.contributor.author Pastor Yabar A.
dc.contributor.author Pearson R.
dc.contributor.author Pinna F.
dc.contributor.author Protasio C.
dc.contributor.author Rizzi N.
dc.contributor.author Redondo-Lorenzo F.
dc.contributor.author Rodríguez-Coira G.
dc.contributor.author Ros J.
dc.contributor.author Sadun A.
dc.contributor.author Savchenko S.
dc.contributor.author Semkov E.
dc.contributor.author Slavcheva-Mihova L.
dc.contributor.author Smith N.
dc.contributor.author Strigachev A.
dc.contributor.author Troitskaya Y.
dc.contributor.author Troitsky I.
dc.contributor.author Vasilyev A.
dc.contributor.author Vince O.
dc.date.accessioned 2018-04-05T07:09:09Z
dc.date.available 2018-04-05T07:09:09Z
dc.date.issued 2017
dc.identifier.issn 0035-8711
dc.identifier.uri http://dspace.kpfu.ru/xmlui/handle/net/129555
dc.description.abstract © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. We report on long-term multiwavelength monitoring of blazar Mrk 421 by the GLAST-AGILE Support Program of the Whole Earth Blazar Telescope (GASP-WEBT) collaboration and Steward Observatory, and by the Swift and Fermi satellites. We study the source behaviour in the period 2007-2015, characterized by several extreme flares. The ratio between the optical, X-ray and γ-ray fluxes is very variable. The γ-ray flux variations show a fair correlation with the optical ones starting from 2012. We analyse spectropolarimetric data and find wavelength-dependence of the polarization degree (P), which is compatible with the presence of the host galaxy, and no wavelength dependence of the electric vector polarization angle (EVPA). Optical polarimetry shows a lack of simple correlation between P and flux and wide rotations of the EVPA. We build broad-band spectral energy distributions with simultaneous near-infrared and optical data from the GASP-WEBT and ultraviolet and X-ray data from the Swift satellite. They show strong variability in both flux and X-ray spectr al shape and suggest a shift of the synchrotron peak up to a factor of ~50 in frequency. The interpretation of the flux and spectral variability is compatible with jet models including at least two emitting regions that can change their orientation with respect to the line of sight.
dc.relation.ispartofseries Monthly Notices of the Royal Astronomical Society
dc.subject BL Lacertae objects: general
dc.subject BL Lacertae objects: individual: Mrk 421
dc.subject galaxies: active
dc.subject galaxies: jets
dc.title Dissecting the long-term emission behaviour of the BL Lac object Mrk 421
dc.type Article
dc.relation.ispartofseries-issue 4
dc.relation.ispartofseries-volume 472
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 3789
dc.source.id SCOPUS00358711-2017-472-4-SID85030667240


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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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