Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 343 (6166), 51-4

The First Pulse of the Extremely Bright GRB 130427A: A Test Lab for Synchrotron Shocks

R Preece  1 J Michael BurgessA von KienlinP N BhatM S BriggsD ByrneV ChaplinW ClevelandA C CollazziV ConnaughtonA DiekmannG FitzpatrickS FoleyM GibbyM GilesA GoldsteinJ GreinerD GruberP JenkeR M KippenC KouveliotouS McBreenC MeeganW S PaciesasV PelassaD TierneyA J van der HorstC Wilson-HodgeS XiongG YounesH-F YuM AckermannM AjelloM AxelssonL BaldiniG BarbielliniM G BaringD BastieriR BellazziniE BissaldiE BonamenteJ BregeonM BrigidaP BruelR BuehlerS BusonG A CaliandroR A CameronP A CaraveoC CecchiE CharlesA ChekhtmanJ ChiangG ChiaroS CipriniR ClausJ Cohen-TanugiL R CominskyJ ConradF D'AmmandoA de AngelisF de PalmaC D DermerR DesianteS W DigelL Di VenereP S DrellA Drlica-WagnerC FavuzziA FranckowiakY FukazawaP FuscoF GarganoN GehrelsS GermaniN GigliettoF GiordanoM GirolettiG GodfreyJ GranotI A GrenierS GuiriecD HadaschY HanabataA K HardingM HayashidaS IyyaniT JoglerG JóhannessonT KawanoJ KnödlsederD KocevskiM KussJ LandeJ LarssonS LarssonL LatronicoF LongoF LoparcoM N LovelletteP LubranoM MayerM N MazziottaP F MichelsonT MizunoM E MonzaniE MorettiA MorselliS MurgiaR NemmenE NussT NymarkM OhnoT OhsugiA OkumuraN OmodeiM OrientiD PanequeJ S PerkinsM Pesce-RollinsF PironG PivatoT A PorterJ L RacusinS RainòR RandoM RazzanoS RazzaqueA ReimerO ReimerS RitzM RothF RydeA SartoriJ D ScargleA SchulzC SgròE J SiskindG SpandreP SpinelliD J SusonH TajimaH TakahashiJ G ThayerJ B ThayerL TibaldoM TinivellaD F TorresG TostiE TrojaT L UsherJ VandenbrouckeV VasileiouG VianelloV VitaleM WernerB L WinerK S WoodS Zhu

The First Pulse of the Extremely Bright GRB 130427A: A Test Lab for Synchrotron Shocks

R Preece et al. Science.


Gamma-ray burst (GRB) 130427A is one of the most energetic GRBs ever observed. The initial pulse up to 2.5 seconds is possibly the brightest well-isolated pulse observed to date. A fine time resolution spectral analysis shows power-law decays of the peak energy from the onset of the pulse, consistent with models of internal synchrotron shock pulses. However, a strongly correlated power-law behavior is observed between the luminosity and the spectral peak energy that is inconsistent with curvature effects arising in the relativistic outflow. It is difficult for any of the existing models to account for all of the observed spectral and temporal behaviors simultaneously.

Comment in

Similar articles

  • Fermi-LAT Observations of the Gamma-Ray Burst GRB 130427A
    M Ackermann et al. Science 343 (6166), 42-7. PMID 24263133.
    The observations of the exceptionally bright gamma-ray burst (GRB) 130427A by the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope provide constraints on t …
  • GRB 130427A: A Nearby Ordinary Monster
    A Maselli et al. Science 343 (6166), 48-51. PMID 24263134.
    Long-duration gamma-ray bursts (GRBs) are an extremely rare outcome of the collapse of massive stars and are typically found in the distant universe. Because of its intri …
  • The Bright Optical Flash and Afterglow From the Gamma-Ray Burst GRB 130427A
    WT Vestrand et al. Science 343 (6166), 38-41. PMID 24263131.
    The optical light generated simultaneously with x-rays and gamma rays during a gamma-ray burst (GRB) provides clues about the nature of the explosions that occur as massi …
  • An Apparently Normal Gamma-Ray Burst With an Unusually Low Luminosity
    SY Sazonov et al. Nature 430 (7000), 646-8. PMID 15295591.
    Much of the progress in understanding gamma-ray bursts (GRBs) has come from studies of distant events (redshift z approximately 1). In the brightest GRBs, the gamma-rays …
  • Messages From GRB 060218
    B Zhang et al. Philos Trans A Math Phys Eng Sci 365 (1854), 1257-62. PMID 17293314. - Review
    GRB 060218 is a watershed event. Statistically, its detection suggests that there is likely a distinct low-luminosity (LL) population of gamma-ray bursts (GRBs) whose eve …
See all similar articles

Publication types

LinkOut - more resources