• Login
    View Item 
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Multiwavelength Observations of the Blazar BL Lacertae: A New Fast TeV Gamma-Ray Flare

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Abeysekara_2018_ApJ_856_95.pdf
    Size:
    2.157Mb
    Format:
    PDF
    Description:
    Final Published Version
    Download
    Author
    Abeysekara, A. U.
    Benbow, W. cc
    Bird, R. cc
    Brantseg, T.
    Brose, R.
    Buchovecky, M.
    Buckley, J. H.
    Bugaev, V.
    Connolly, M. P.
    Cui, W.
    Daniel, M. K.
    Falcone, A.
    Feng, Q.
    Finley, J. P.
    Fortson, L.
    Furniss, A.
    Gillanders, G. H.
    Gunawardhana, I.
    Hütten, M.
    Hanna, D.
    Hervet, O.
    Holder, J.
    Hughes, G.
    Humensky, T. B.
    Johnson, C. A.
    Kaaret, P.
    Kar, P.
    Kertzman, M.
    Krennrich, F.
    Lang, M. J.
    Lin, T. T. Y.
    McArthur, S.
    Moriarty, P.
    Mukherjee, R.
    O’Brien, S.
    Ong, R. A.
    Otte, A. N.
    Park, N.
    Petrashyk, A.
    Pohl, M.
    Pueschel, E.
    Quinn, J.
    Ragan, K.
    Reynolds, P. T.
    Richards, G. T.
    Roache, E.
    Rulten, C.
    Sadeh, I.
    Santander, M.
    Sembroski, G. H.
    Shahinyan, K.
    Wakely, S. P.
    Weinstein, A.
    Wells, R. M.
    Wilcox, P.
    Williams, D. A.
    Zitzer, B.
    Jorstad, S. G.
    Marscher, A. P.
    Lister, M. L.
    Kovalev, Y. Y.
    Pushkarev, A. B.
    Savolainen, T.
    Agudo, I.
    Molina, S. N.
    Gómez, J. L.
    Larionov, V. M.
    Borman, G. A.
    Mokrushina, A. A.
    Tornikoski, M.
    Lähteenmäki, A.
    Chamani, W.
    Enestam, S.
    Kiehlmann, S.
    Hovatta, T.
    Smith, P. S.
    Pontrelli, P.
    Show allShow less
    Affiliation
    Univ Arizona, Steward Observ
    Issue Date
    2018-03-28
    Keywords
    BL Lacertae objects: individual (BL Lacertae = VER J2202+422)
    galaxies: active
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    A. U. Abeysekara et al 2018 ApJ 856 95
    Journal
    ASTROPHYSICAL JOURNAL
    Rights
    © 2018. The American Astronomical Society. All rights reserved.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Combined with measurements made by very-long-baseline interferometry, the observations of fast TeV gamma-ray flares probe the structure and emission mechanism of blazar jets. However, only a handful of such flares have been detected to date, and only within the last few years have these flares been observed from lower-frequency-peaked BL. Lac objects and flat-spectrum radio quasars. We report on a fast TeV gamma-ray flare from the blazar BL. Lacertae observed by the Very Energetic Radiation Imaging Telescope Array System (VERITAS). with a rise time of similar to 2.3 hr and a decay time of similar to 36 min. The peak flux above 200 GeV is (4.2 +/- 0.6) x 10(-6) photon m(-2) s(-1) measured with a 4-minute-binned light curve, corresponding to similar to 180% of the flux that is observed from the Crab Nebula above the same energy threshold. Variability contemporaneous with the TeV gamma-ray flare was observed in GeV gamma-ray, X-ray, and optical flux, as well as in optical and radio polarization. Additionally, a possible moving emission feature with superluminal apparent velocity was identified in Very Long Baseline Array observations at 43 GHz, potentially passing the radio core of the jet around the time of the gamma-ray flare. We discuss the constraints on the size, Lorentz factor, and location of the emitting region of the flare, and the interpretations with several theoretical models that invoke relativistic plasma passing stationary shocks.
    ISSN
    1538-4357
    DOI
    10.3847/1538-4357/aab35c
    Version
    Final published version
    Sponsors
    U.S. Department of Energy Office of Science; U.S. National Science Foundation; Smithsonian Institution; NSERC in Canada; NASA Fermi Guest Investigator Program [80NSSC17K 0694]; NASA Fermi grant [NNX15AU76G]; Russian Foundation for Basic Research [17-02-00197]; government of the Russian Federation [05.Y09.21.0018]; Alexander von Humboldt Foundation; Academy of Finland [274477, 284495]; NASA [NNX08AW31G, NNX11A043G, NNX14AQ89G]; NSF [AST-0808050, AST-1109911]; NASA Fermi Guest Investigator grant [NNX15AU81G]; Ramon y Cajal grant of the Ministerio de Economia y Competitividad (MINECO) of Spain; MINECO [AYA2010-14844, AYA2013-40825-P, AYA2016-80889-P]; Regional Government of Andalucia [P09-FQM-4784]; Russian Science Foundation [17-12-01029]
    Additional Links
    http://stacks.iop.org/0004-637X/856/i=2/a=95?key=crossref.088a19011e2f323cd8b4e8a4389093fb
    ae974a485f413a2113503eed53cd6c53
    10.3847/1538-4357/aab35c
    Scopus Count
    Collections
    UA Faculty Publications

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.