Optical Bumps in Cosmological GRBs as Supernovae

  • J.S. Bloom
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 99)


From both photometric and broadband spectral monitoring of γ-ray burst (GRB) lightcurve “bumps,” particularly in GRB011121, a strong case grew for a supernova (SN) origin. The GRB-SN connection was finally solidified beyond a reasonable doubt with the discovery that the bump in GRB030329 was spectroscopically similar to a bright Type Ic SN. In light of this result, I re-assess the previous SN bump claims and conclude that: 1) the distribution of GRB-SN bump peak magnitudes is consistent with the local Type Ib/c SNe peak distribution and 2) the late-time bumps in all long-duration GRBs are likely supernovae.


Light Curve Massive Star Hubble Space Telescope Host Galaxy Peak Magnitude 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • J.S. Bloom
    • 1
    • 2
  1. 1.Harvard-Smithsonian Center for AstrophysicsCambridgeUSA
  2. 2.Harvard Society of FellowsCambridgeUSA

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