Kazan Federal University Digital Repository

Unraveling the Complex Behavior of Mrk 421 with Simultaneous X-Ray and VHE Observations during an Extreme Flaring Activity in 2013 April

Show simple item record

dc.contributor.author magic Collaboration
dc.contributor.author Other Groups
dc.contributor.author Acciari V.A.
dc.contributor.author Ansoldi S.
dc.contributor.author Antonelli L.A.
dc.contributor.author Engels A.A.
dc.contributor.author Baack D.
dc.contributor.author Babić A.
dc.contributor.author Banerjee B.
dc.contributor.author De Almeida U.B.
dc.contributor.author Barrio J.A.
dc.contributor.author González J.B.
dc.contributor.author Bednarek W.
dc.contributor.author Bellizzi L.K.
dc.contributor.author Bernardini E.
dc.contributor.author Berti A.
dc.contributor.author Besenrieder J.
dc.contributor.author Bhattacharyya W.
dc.contributor.author Bigongiari C.
dc.contributor.author Biland A.
dc.contributor.author Blanch O.
dc.contributor.author Bonnoli G.
dc.contributor.author Bošnjak
dc.contributor.author Busetto G.
dc.contributor.author Carosi R.
dc.contributor.author Ceribella G.
dc.contributor.author Cerruti M.
dc.contributor.author Chai Y.
dc.contributor.author Chilingarian A.
dc.contributor.author Cikota S.
dc.contributor.author Colak S.M.
dc.contributor.author Colin U.
dc.contributor.author Colombo E.
dc.contributor.author Contreras J.L.
dc.contributor.author Cortina J.
dc.contributor.author Covino S.
dc.contributor.author D'Elia V.
dc.contributor.author Vela P.D.
dc.contributor.author Dazzi F.
dc.contributor.author Angelis A.D.
dc.contributor.author Lotto B.D.
dc.contributor.author Puppo F.D.
dc.contributor.author Delfino M.
dc.contributor.author Delgado J.
dc.contributor.author Depaoli D.
dc.contributor.author Pierro F.D.
dc.contributor.author Venere L.D.
dc.contributor.author Souto Espiñeira E.D.
dc.contributor.author Prester D.D.
dc.contributor.author Donini A.
dc.contributor.author Dorner D.
dc.contributor.author Doro M.
dc.contributor.author Elsaesser D.
dc.contributor.author Ramazani V.F.
dc.contributor.author Fattorini A.
dc.contributor.author Ferrara G.
dc.contributor.author Foffano L.
dc.contributor.author Fonseca M.V.
dc.contributor.author Font L.
dc.contributor.author Fruck C.
dc.contributor.author Fukami S.
dc.contributor.author López R.J.G.
dc.contributor.author Garczarczyk M.
dc.contributor.author Gasparyan S.
dc.contributor.author Gaug M.
dc.contributor.author Giglietto N.
dc.contributor.author Giordano F.
dc.contributor.author Gliwny P.
dc.contributor.author Godinović N.
dc.contributor.author Green D.
dc.contributor.author Hadasch D.
dc.contributor.author Hahn A.
dc.contributor.author Hassan T.
dc.contributor.author Herrera J.
dc.contributor.author Hoang J.
dc.contributor.author Hrupec D.
dc.contributor.author Hütten M.
dc.contributor.author Inada T.
dc.contributor.author Inoue S.
dc.contributor.author Ishio K.
dc.contributor.author Iwamura Y.
dc.contributor.author Jouvin L.
dc.contributor.author Kajiwara Y.
dc.contributor.author Kerszberg D.
dc.contributor.author Kobayashi Y.
dc.contributor.author Kubo H.
dc.contributor.author Kushida J.
dc.contributor.author Lamastra A.
dc.contributor.author Lelas D.
dc.contributor.author Leone F.
dc.contributor.author Lindfors E.
dc.contributor.author Lombardi S.
dc.contributor.author Longo F.
dc.contributor.author López M.
dc.contributor.author López-Coto R.
dc.contributor.author López-Oramas A.
dc.contributor.author Loporchio S.
dc.contributor.author De Oliveira Fraga B.M.
dc.contributor.author Maggio C.
dc.contributor.author Majumdar P.
dc.date.accessioned 2021-02-25T20:33:29Z
dc.date.available 2021-02-25T20:33:29Z
dc.date.issued 2020
dc.identifier.issn 0067-0049
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/161724
dc.description.abstract © 2020. The American Astronomical Society. All rights reserved. We report on a multiband variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 19. The study uses, among others, data from GLAST-AGILE Support Program (GASP) of the Whole Earth Blazar Telescope (WEBT), Swift, Nuclear Spectroscopic Telescope Array (NuSTAR), Fermi Large Area Telescope, Very Energetic Radiation Imaging Telescope Array System (VERITAS), and Major Atmospheric Gamma Imaging Cherenkov (MAGIC). The large blazar activity and the 43 hr of simultaneous NuSTAR and MAGIC/VERITAS observations permitted variability studies on 15 minute time bins over three X-ray bands (3-7 keV, 7-30 keV, and 30-80 keV) and three very-high-energy (VHE; >0.1 TeV) gamma-ray bands (0.2-0.4 TeV, 0.4-0.8 TeV, and >0.8 TeV). We detected substantial flux variations on multi-hour and sub-hour timescales in all of the X-ray and VHE gamma-ray bands. The characteristics of the sub-hour flux variations are essentially energy independent, while the multi-hour flux variations can have a strong dependence on the energy of the X-rays and the VHE gamma-rays. The three VHE bands and the three X-ray bands are positively correlated with no time lag, but the strength and characteristics of the correlation change substantially over time and across energy bands. Our findings favor multi-zone scenarios for explaining the achromatic/chromatic variability of the fast/slow components of the light curves, as well as the changes in the flux-flux correlation on day-long timescales. We interpret these results within a magnetic reconnection scenario, where the multi-hour flux variations are dominated by the combined emission from various plasmoids of different sizes and velocities, while the sub-hour flux variations are dominated by the emission from a single small plasmoid moving across the magnetic reconnection layer.
dc.relation.ispartofseries Astrophysical Journal, Supplement Series
dc.title Unraveling the Complex Behavior of Mrk 421 with Simultaneous X-Ray and VHE Observations during an Extreme Flaring Activity in 2013 April
dc.type Article
dc.relation.ispartofseries-issue 2
dc.relation.ispartofseries-volume 248
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS00670049-2020-248-2-SID85087986974

Files in this item

This item appears in the following Collection(s)

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

Show simple item record

Search DSpace

Advanced Search


My Account