About: The unusual gamma-ray burst GRB 101225A from a helium star/neutron star merger at redshift 0.33     Goto   Sponge   NotDistinct   Permalink

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  • Here we report observations of the unusual GRB 101225A. Its γ-ray emission was exceptionally long-lived and was followed by a bright X-ray transient with a hot thermal component and an unusual optical counterpart. During the first 10 days, the optical emission evolved as an expanding, cooling black body, after which an additional component, consistent with a faint supernova, emerged. We estimate its redshift to be z = 0.33 by fitting the spectral-energy distribution and light curve of the optical emission with a GRB-supernova template. Deep optical observations may have revealed a faint, unresolved host galaxy. Our proposed progenitor is a merger of a helium star with a neutron star that underwent a common envelope phase, expelling its hydrogen envelope. The resulting explosion created a GRB-like jet which became thermalized by interacting with the dense, previously ejected material, thus creating the observed black body, until finally the emission from the supernova dominated.
  • Here we report observations of the unusual GRB 101225A. Its γ-ray emission was exceptionally long-lived and was followed by a bright X-ray transient with a hot thermal component and an unusual optical counterpart. During the first 10 days, the optical emission evolved as an expanding, cooling black body, after which an additional component, consistent with a faint supernova, emerged. We estimate its redshift to be z = 0.33 by fitting the spectral-energy distribution and light curve of the optical emission with a GRB-supernova template. Deep optical observations may have revealed a faint, unresolved host galaxy. Our proposed progenitor is a merger of a helium star with a neutron star that underwent a common envelope phase, expelling its hydrogen envelope. The resulting explosion created a GRB-like jet which became thermalized by interacting with the dense, previously ejected material, thus creating the observed black body, until finally the emission from the supernova dominated. (en)
Title
  • The unusual gamma-ray burst GRB 101225A from a helium star/neutron star merger at redshift 0.33
  • The unusual gamma-ray burst GRB 101225A from a helium star/neutron star merger at redshift 0.33 (en)
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  • The unusual gamma-ray burst GRB 101225A from a helium star/neutron star merger at redshift 0.33
  • The unusual gamma-ray burst GRB 101225A from a helium star/neutron star merger at redshift 0.33 (en)
skos:notation
  • RIV/68378271:_____/11:00371960!RIV12-AV0-68378271
http://linked.open...avai/riv/aktivita
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  • Z(AV0Z10100502)
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  • 7375
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  • 236916
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  • RIV/68378271:_____/11:00371960
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  • GRB (en)
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  • GB - Spojené království Velké Británie a Severního Irska
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  • [5D76C6535564]
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  • Nature
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 480
http://linked.open...iv/tvurceVysledku
  • Page, K. L.
  • Aloy, M. A.
  • Bundy, K.
  • Choi, C.
  • Cummings, J.
  • De Pasquale, M.
  • Fryer, C. L.
  • Garcia, H. L.
  • Gorosabel, J.
  • Guziy, S.
  • Holland, S. T.
  • Im, M.
  • Janka, H. T.
  • Jeong, H.
  • Kann, D. A.
  • Korhonen, H.
  • Kouveliotou, C.
  • Krimm, H.
  • Kubánek, Petr
  • Lim, J.
  • Llorente, A.
  • Mimica, P.
  • Moskvitin, A.
  • Munoz-Darias, T.
  • Oates, S. R.
  • Pak, S.
  • Park, W.-K.
  • Parrish, I.
  • Perley, D. A.
  • Postigo, A. de U.
  • Racusin, J. L.
  • Siegel, M. H.
  • Sonbas, E.
  • Thöne, C. C.
http://linked.open...ain/vavai/riv/wos
  • 000298031900035
http://linked.open...n/vavai/riv/zamer
issn
  • 0028-0836
number of pages
http://bibframe.org/vocab/doi
  • 10.1038/nature10611
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