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A hypernova model for the supernova associated with the γ-ray burst of 25 April 1998
Open accessAbstract
The discovery of the unusual supernova SN1998bw, and its possible association with the γ-ray burst GRB 980425, provide new insights into the explosion mechanism of very massive stars and the origin of some classes of γ-ray bursts. Optical spectra indicate that SN1998bw is a type Ic supernova,, but its peak luminosity is unusually high compared with typical type Ic supernovae. Here we report our findings that the optical spectra and the light curve of SN1998bw can be well reproduced by an extremely energetic explosion of a massive star composed mainly of carbon and oxygen (having lost its hydrogen and helium envelopes). The kinetic energy of the ejecta is as large as +(2–5)× 1052 erg, more than ten times that of previously observed supernovae. This type of supernova could therefore be termed ‘hypernova’. The extremely large energy suggests the existence of a new mechanism of massive star explosion that can also produce the relativistic shocks necessary to generate the observed γ-rays.
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Cited by
An unusual supernova in the error box of the γ-ray burst of 25 April 1998
Galama, T. J., Vreeswijk, P. M., van Paradijs, J., Kouveliotou, C., Augusteijn, T., Böhnhardt, H., Brewer, J. P., Doublier, V., Gonzalez, J.-F., Leibundgut, B., et al. (1998) · Nature · doi:10.1038/27150 · Cited by 1,921
Self-citationThe Supernova–Gamma-Ray Burst Connection
Woosley, S. E., & Bloom, J. S. (2006) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.43.072103.150558 · Cited by 1,766
Nucleosynthesis yields of core-collapse supernovae and hypernovae, and galactic chemical evolution
Nomoto, K., Tominaga, N., Umeda, H., Kobayashi, C., & Maeda, K. (2006) · Nuclear Physics A · doi:10.1016/j.nuclphysa.2006.05.008 · Cited by 734
Self-citationRelativistic Jets in Collapsars
Zhang, W., Woosley, S. E., & MacFadyen, A. I. (2003) · The Astrophysical Journal · doi:10.1086/367609 · Cited by 444
MAXI/SSC all-sky maps from 0.7 keV to 4 keV
Nakahira, S., Tsunemi, H., Tomida, H., Nakashima, S., Kataoka, R., & Makishima, K. (2020) · Publications of the Astronomical Society of Japan · doi:10.1093/pasj/psz139 · Cited by 9
Metadata
- Authors
- Iwamoto, K., Mazzali, P. A., Nomoto, K., Umeda, H., Nakamura, T., Patat, F., Danziger, I. J., Young, T. R., Suzuki, T., Shigeyama, T., Augusteijn, T., Doublier, V., Gonzalez, J.-F., Boehnhardt, H., Brewer, J., Hainaut, O. R., Lidman, C., Leibundgut, B., Cappellaro, E., Turatto, M., Galama, T. J., Vreeswijk, P. M., Kouveliotou, C., van Paradijs, J., Pian, E., Palazzi, E., & Frontera, F.
- Venue
- Nature
- Published
- 1998-10
- Volume
- 395
- Issue
- 6703
- Pages
- 672-674
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2602257590
- Cited by
- 695
- References
- 0
- FWCI
- 26.37
- Type
- journal article
- Language
- en
- Open access
- green
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- The paper
- Iwamoto, K., Mazzali, P. A., Nomoto, K., Umeda, H., Nakamura, T., Patat, F., Danziger, I. J., Young, T. R., Suzuki, T., Shigeyama, T., Augusteijn, T., Doublier, V., Gonzalez, J.-F., Boehnhardt, H., Brewer, J., Hainaut, O. R., Lidman, C., Leibundgut, B., Cappellaro, E., . . . Frontera, F. (1998). A hypernova model for the supernova associated with the γ-ray burst of 25 April 1998. Nature. https://doi.org/10.1038/27155
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