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FIRST NuSTAR OBSERVATIONS of MRK 501 WITHIN A RADIO to TeV MULTI-INSTRUMENT CAMPAIGN

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dc.contributor.author Furniss A.
dc.contributor.author Noda K.
dc.contributor.author Boggs S.
dc.contributor.author Chiang J.
dc.contributor.author Christensen F.
dc.contributor.author Craig W.
dc.contributor.author Giommi P.
dc.contributor.author Hailey C.
dc.contributor.author Harisson F.
dc.contributor.author Madejski G.
dc.contributor.author Nalewajko K.
dc.contributor.author Perri M.
dc.contributor.author Stern D.
dc.contributor.author Urry M.
dc.contributor.author Verrecchia F.
dc.contributor.author Zhang W.
dc.contributor.author Ahnen M.
dc.contributor.author Ansoldi S.
dc.contributor.author Antonelli L.
dc.contributor.author Antoranz P.
dc.contributor.author Babic A.
dc.contributor.author Banerjee B.
dc.contributor.author Bangale P.
dc.contributor.author Barres De Almeida U.
dc.contributor.author A. Barrio J.
dc.contributor.author Becerra González J.
dc.contributor.author Bednarek W.
dc.contributor.author Bernardini E.
dc.contributor.author Biasuzzi B.
dc.contributor.author Biland A.
dc.contributor.author Blanch O.
dc.contributor.author Bonnefoy S.
dc.contributor.author Bonnoli G.
dc.contributor.author Borracci F.
dc.contributor.author Bretz T.
dc.contributor.author Carmona E.
dc.contributor.author Carosi A.
dc.contributor.author Chatterjee A.
dc.contributor.author Clavero R.
dc.contributor.author Colin P.
dc.contributor.author Colombo E.
dc.contributor.author Contreras J.
dc.contributor.author Cortina J.
dc.contributor.author Covino S.
dc.contributor.author Da Vela P.
dc.contributor.author Dazzi F.
dc.contributor.author De Angelis A.
dc.contributor.author De Caneva G.
dc.contributor.author De Lotto B.
dc.contributor.author De Oña Wilhelmi E.
dc.contributor.author Delgado Mendez C.
dc.contributor.author Di Pierro F.
dc.contributor.author Dominis Prester D.
dc.contributor.author Dorner D.
dc.contributor.author Doro M.
dc.contributor.author Einecke S.
dc.contributor.author Eisenacher Glawion D.
dc.contributor.author Elsaesser D.
dc.contributor.author Fernández-Barral A.
dc.contributor.author Fidalgo D.
dc.contributor.author Fonseca M.
dc.contributor.author Font L.
dc.contributor.author Frantzen K.
dc.contributor.author Fruck C.
dc.contributor.author Galindo D.
dc.contributor.author García López R.
dc.contributor.author Garczarczyk M.
dc.contributor.author Garrido Terrats D.
dc.contributor.author Gaug M.
dc.contributor.author Giammaria P.
dc.contributor.author Godinović N.
dc.contributor.author González Muñoz A.
dc.contributor.author Guberman D.
dc.contributor.author Hanabata Y.
dc.contributor.author Hayashida M.
dc.contributor.author Herrera J.
dc.contributor.author Hose J.
dc.contributor.author Hrupec D.
dc.contributor.author Hughes G.
dc.contributor.author Idec W.
dc.contributor.author Kellermann H.
dc.contributor.author Kodani K.
dc.contributor.author Konno Y.
dc.contributor.author Kubo H.
dc.contributor.author Kushida J.
dc.contributor.author La Barbera A.
dc.contributor.author Lelas D.
dc.contributor.author Lewandowska N.
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.date.accessioned 2018-09-18T20:01:59Z
dc.date.available 2018-09-18T20:01:59Z
dc.date.issued 2015
dc.identifier.issn 0004-637X
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/135908
dc.description.abstract © 2015. The American Astronomical Society. All rights reserved.. We report on simultaneous broadband observations of the TeV-emitting blazar Markarian 501 between 2013 April 1 and August 10, including the first detailed characterization of the synchrotron peak with Swift and NuSTAR. During the campaign, the nearby BL Lac object was observed in both a quiescent and an elevated state. The broadband campaign includes observations with NuSTAR, MAGIC, VERITAS, the Fermi Large Area Telescope, Swift X-ray Telescope and UV Optical Telescope, various ground-based optical instruments, including the GASP-WEBT program, as well as radio observations by OVRO, Metsähovi, and the F-Gamma consortium. Some of the MAGIC observations were affected by a sand layer from the Saharan desert, and had to be corrected using event-by-event corrections derived with a Light Detection and Ranging (LIDAR) facility. This is the first time that LIDAR information is used to produce a physics result with Cherenkov Telescope data taken during adverse atmospheric conditions, and hence sets a precedent for the current and future ground-based gamma-ray instruments. The NuSTAR instrument provides unprecedented sensitivity in hard X-rays, showing the source to display a spectral energy distribution (SED) between 3 and 79 keV consistent with a log-parabolic spectrum and hard X-ray variability on hour timescales. None (of the four extended NuSTAR observations) show evidence of the onset of inverse-Compton emission at hard X-ray energies. We apply a single-zone equilibrium synchrotron self-Compton (SSC) model to five simultaneous broadband SEDs. We find that the SSC model can reproduce the observed broadband states through a decrease in the magnetic field strength coinciding with an increase in the luminosity and hardness of the relativistic leptons responsible for the high-energy emission.
dc.relation.ispartofseries Astrophysical Journal
dc.subject BL Lacertae objects: general
dc.subject galaxies: individual (Markarian 501)
dc.subject X-rays: galaxies
dc.title FIRST NuSTAR OBSERVATIONS of MRK 501 WITHIN A RADIO to TeV MULTI-INSTRUMENT CAMPAIGN
dc.type Article
dc.relation.ispartofseries-issue 1
dc.relation.ispartofseries-volume 812
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS0004637X-2015-812-1-SID84946122101


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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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