A rebrightening of the radio nebula associated with the 2004 December 27 giant flare from SGR 1806-20

Joseph (Yosi) Gelfand, Y. E. Lyubarsky, D. Eichler, B. M. Gaensler, G. B. Taylor, J. Granot, K. J. Newton-Mcgee, E. Ramirez-Ruiz, C. Kouveliotou, R. A.M.J. Wijers

    Research output: Contribution to journalArticle

    Abstract

    The 2004 December 27 giant γ-ray flare detected from the magnetar SGR 1806-20 created an expanding radio nebula that we have monitored with the Australia Telescope Compact Array and the Very Large Array. These data indicate that there was an increase in the observed flux ∼25 days after the initial flare that lasted for ∼8 days, which we believe is the result of ambient material swept up and shocked by this radio nebula. For a distance to SGR 1806-20 of 15 kpc, using the properties of this rebrightening, we infer that the initial blast wave was dominated by baryonic material of mass M ≳ 10 24.5 g. For an initial expansion velocity v ∼ 0.7c (as derived in an accompanying paper), we infer that this material had an initial kinetic energy E ≳ 1044.5 ergs. If this material originated from the magnetar itself, it may have emitted a burst of ultra-high-energy (E > 1 TeV) neutrinos far brighter than that expected from other astrophysical sources.

    Original languageEnglish (US)
    JournalAstrophysical Journal
    Volume634
    Issue number1 II
    DOIs
    StatePublished - Nov 20 2005

    Fingerprint

    magnetars
    nebulae
    flares
    radio
    Very Large Array (VLA)
    blasts
    bursts
    rays
    astrophysics
    neutrinos
    kinetic energy
    telescopes
    expansion
    erg
    material
    energy

    Keywords

    • Neutrinos
    • Pulsars: individual (SGR 1806-20)
    • Radio continuum: stars
    • Shock waves
    • Stars: magnetic fields
    • Stars: neutron

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Cite this

    Gelfand, J. Y., Lyubarsky, Y. E., Eichler, D., Gaensler, B. M., Taylor, G. B., Granot, J., ... Wijers, R. A. M. J. (2005). A rebrightening of the radio nebula associated with the 2004 December 27 giant flare from SGR 1806-20. Astrophysical Journal, 634(1 II). https://doi.org/10.1086/498643

    A rebrightening of the radio nebula associated with the 2004 December 27 giant flare from SGR 1806-20. / Gelfand, Joseph (Yosi); Lyubarsky, Y. E.; Eichler, D.; Gaensler, B. M.; Taylor, G. B.; Granot, J.; Newton-Mcgee, K. J.; Ramirez-Ruiz, E.; Kouveliotou, C.; Wijers, R. A.M.J.

    In: Astrophysical Journal, Vol. 634, No. 1 II, 20.11.2005.

    Research output: Contribution to journalArticle

    Gelfand, JY, Lyubarsky, YE, Eichler, D, Gaensler, BM, Taylor, GB, Granot, J, Newton-Mcgee, KJ, Ramirez-Ruiz, E, Kouveliotou, C & Wijers, RAMJ 2005, 'A rebrightening of the radio nebula associated with the 2004 December 27 giant flare from SGR 1806-20', Astrophysical Journal, vol. 634, no. 1 II. https://doi.org/10.1086/498643
    Gelfand JY, Lyubarsky YE, Eichler D, Gaensler BM, Taylor GB, Granot J et al. A rebrightening of the radio nebula associated with the 2004 December 27 giant flare from SGR 1806-20. Astrophysical Journal. 2005 Nov 20;634(1 II). https://doi.org/10.1086/498643
    Gelfand, Joseph (Yosi) ; Lyubarsky, Y. E. ; Eichler, D. ; Gaensler, B. M. ; Taylor, G. B. ; Granot, J. ; Newton-Mcgee, K. J. ; Ramirez-Ruiz, E. ; Kouveliotou, C. ; Wijers, R. A.M.J. / A rebrightening of the radio nebula associated with the 2004 December 27 giant flare from SGR 1806-20. In: Astrophysical Journal. 2005 ; Vol. 634, No. 1 II.
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