• DOI:10.1086/498009
• Corpus ID: 1772447

An HST Study of the Supernovae Accompanying GRB 040924 and GRB 041006

@article{Soderberg2005AnHS,
  title={An HST Study of the Supernovae Accompanying GRB 040924 and GRB 041006},
  author={Alicia Margarita Soderberg and Shrinivas R. Kulkarni and Paul A. Price and Derek B. Fox and Edo Berger and Dae-Sik moon and S. Bradley Cenko and Avishay Gal-yam and Dale A. Frail and Roger A. Chevalier and Lennox L. Cowie and Gary S. Da Costa and A. Macfadyen and Patrick McCarthy and Noelia E. D. Noel and H. S. Park and Bruce A. Peterson and Mark M. Phillips and Michael Rauch and Armin Rest and Jeffrey A. Rich and Katherine C. Roth and Miguel R. Roth and Brian P. Schmidt and R. C. Smith and Peter Wood},
  journal={The Astrophysical Journal},
  year={2005},
  volume={636},
  pages={391 - 399}
}

• A. Soderberg, S. Kulkarni, +23 authors P. Wood
• Published 15 April 2005
• Physics
• The Astrophysical Journal

We present the results from a Hubble Space Telescope ACS study of the supernovae (SNe) associated with gamma-ray bursts (GRBs) 040924 (z = 0.86) and 041006 (z = 0.71). We find evidence that both GRBs were associated with an SN 1998bw-like supernova dimmed by ~1.5 and ~0.3 mag, respectively, making GRB 040924 the faintest GRB-associated SN ever detected. We study the luminosity dispersion in GRB/XRF-associated SNe and compare to local Type Ibc SNe from the literature. We find significant overlap between the two samples, suggesting that GRB/XRF-associated SNe are not necessarily more luminous and do not necessarily produce more 56Ni than local SNe. Based on the current (limited) data sets, we find that the two samples may share a similar 56Ni production mechanism.