Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

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

    Radio afterglows of very high-energy gamma-ray bursts 190829A and 180720B

    90127.pdf (1.647Mb)
    Access Status
    Open access
    Authors
    Rhodes, L.
    Horst, A.J.V.D.
    Fender, R.
    Monageng, I.M.
    Anderson, Gemma
    Antoniadis, J.
    Bietenholz, M.F.
    Böttcher, M.
    Bright, J.S.
    Green, D.A.
    Kouveliotou, C.
    Kramer, M.
    Motta, S.E.
    Wijers, R.A.M.J.
    Williams, D.R.A.
    Woudt, P.A.
    Date
    2020
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Rhodes, L. and Horst, A.J.V.D. and Fender, R. and Monageng, I.M. and Anderson, G.E. and Antoniadis, J. and Bietenholz, M.F. et al. 2020. Radio afterglows of very high-energy gamma-ray bursts 190829A and 180720B. Monthly Notices of the Royal Astronomical Society. 496 (3): pp. 3326-3335.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1093/MNRAS/STAA1715
    ISSN
    0035-8711
    Faculty
    Faculty of Science and Engineering
    School
    School of Elec Eng, Comp and Math Sci (EECMS)
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DE180100346
    Remarks

    This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2020 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/90303
    Collection
    • Curtin Research Publications
    Abstract

    We present high-cadence multifrequency radio observations of the long gamma-ray burst (GRB) 190829A, which was detected at photon energies above 100 GeV by the High Energy Stereoscopic System (H.E.S.S.). Observations with the Meer Karoo Array Telescope (MeerKAT, 1.3 GHz) and ArcminuteMicrokelvin Imager-Large Array (AMI-LA, 15.5 GHz) began one day post-burst and lasted nearly 200 d. We used complementary data from Swift X-Ray Telescope (XRT), which ran to 100 d post-burst. We detected a likely forward shock component with bothMeerKAT and XRT up to over 100 d post-burst. Conversely, the AMI-LA light curve appears to be dominated by reverse shock emission until around 70 d post-burst when the afterglow flux drops below the level of the host galaxy. We also present previously unpublished observations of the other H.E.S.S.-detected GRB, GRB 180720B from AMILA, which shows likely forward shock emission that fades in less than 10 d. We present a comparison between the radio emission from the three GRBs with detected very high energy (VHE) gamma-ray emission and a sensitivity-limited radio afterglow sample. GRB 190829A has the lowest isotropic radio luminosity of any GRB in our sample, but the distribution of luminosities is otherwise consistent, as expected, with the VHE GRBs being drawn from the same parent distribution as the other radio-detected long GRBs.

    Related items

    Showing items related by title, author, creator and subject.

    • Rapid-response radio observations of short GRB 181123B with the Australia Telescope Compact Array
      Anderson, Gemma ; Bell, M.E.; Stevens, J.; Aksulu, M.D.; Miller-Jones, James ; Horst, AJ van der; Wijers, R.A.M.J.; Rowlinson, A.; Bahramian, Arash ; Hancock, Paul ; Macquart, Jean-Pierre ; Ryder, S.D.; Plotkin, Richard (2021)
      We introduce the Australia Telescope Compact Array (ATCA) rapid-response mode by presenting the first successful trigger on the short-duration gamma-ray burst (GRB) 181123B. Early-time radio observations of short GRBs may ...
    • The Arcminute Microkelvin Imager catalogue of gamma-ray burst afterglows at 15.7 GHz
      Anderson, Gemma; Staley, T.; van der Horst, A.; Fender, R.; Rowlinson, A.; Mooley, K.; Broderick, J.; Wijers, R.; Rumsey, C.; Titterington, D. (2018)
      We present the Arcminute Microkelvin Imager (AMI) Large Array catalogue of 139 gamma-ray bursts (GRBs). AMI observes at a central frequency of 15.7 GHz and is equipped with a fully automated rapid-response mode, which ...
    • Rapid radio brightening of GRB 210702A
      Anderson, Gemma E. ; Russell, T.D.; Fausey, H.M.; van der Horst, A.J.; Hancock, Paul J. ; Bahramian, Arash ; Bell, M.E.; Miller-Jones, James C. A. ; Rowell, G.; Sammons, Mawson W.; Wijers, R.A.M.J.; Galvin, Timothy J.; Goodwin, Adelle J. ; Konno, R.; Rowlinson, A.; Ryder, S.D.; Schüssler, F.; Wagner, S.J.; Zhu, S.J. (2023)
      We observed the rapid radio brightening of GRB 210702A with the Australia Telescope Compact Array (ATCA) just 11 h post-burst, tracking early-time radio variability over a 5 h period on ∼15 min time-scales at 9.0, 16.7, ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.