• Login
    View Item 
    •   NWU-IR Home
    • Research Output
    • Faculty of Natural and Agricultural Sciences
    • View Item
    •   NWU-IR Home
    • Research Output
    • Faculty of Natural and Agricultural Sciences
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Observations of the blazar PKS 2023-07 in flaring state with H.E.S.S. And Fermi-LAT in 2016-2017 and constraints on an intrinsic cut-off

    Thumbnail
    View/Open
    Observations_of_the_blazar.pdf (337.5Kb)
    Date
    2019
    Author
    Emery, G.
    Zacharias, M.
    Jankowsky, F.
    Lenain, J.-P.
    Marais, J.P.
    Metadata
    Show full item record
    Abstract
    PKS 2023−07 is a flat spectrum radio quasar located at a redshift z = 1.388, farther than any source currently detected at very high energies (E > 100 GeV). At such energies, absorption by the extragalactic background light (EBL) renders the detection of distant sources particularly challenging. The High Energy Stereoscopic System (H.E.S.S.) observed the source following reports from AGILE (April 2016) and Fermi-LAT (April 2016, September and October 2017) on high-flux states in gamma rays. During each of the three flaring periods, near-simultaneous observations were obtained with H.E.S.S., Fermi-LAT and multiple telescopes at other wavelengths. Though the source was not significantly detected by H.E.S.S., upper limits were derived for each observation period. Through constraints given by Fermi-LAT in the MeV–GeV domain and differential upper limits by H.E.S.S., we searched for an intrinsic cutoff in the EBL-corrected gamma ray spectrum of PKS 2023−07
    URI
    http://hdl.handle.net/10394/34812
    https://pos.sissa.it/358/669/pdf
    Collections
    • Conference Papers - Potchefstroom Campus [697]
    • Faculty of Natural and Agricultural Sciences [4782]

    Copyright © North-West University
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of NWU-IR Communities & CollectionsBy Issue DateAuthorsTitlesSubjectsAdvisorThis CollectionBy Issue DateAuthorsTitlesSubjectsAdvisor

    My Account

    LoginRegister

    Copyright © North-West University
    Contact Us | Send Feedback
    Theme by 
    Atmire NV