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A common origin for cosmic explosions inferred from calorimetry of GRB030329
Open accessAbstract
Past studies have suggested that long-duration γ-ray bursts have a ‘standard’ energy of Eγ ≈ 1051 erg in the ultra-relativistic ejecta, after correcting for asymmetries in the explosion (‘jets’). But a group of sub-energetic bursts, including the peculiar GRB980425 associated with the supernova SN1998bw (Eγ ≈ 1048 erg), has recently been identified. Here we report radio observations of GRB030329 that allow us to undertake calorimetry of the explosion. Our data require a two-component explosion: a narrow (5° opening angle) ultra-relativistic component responsible for the γ-rays and early afterglow, and a wide, mildly relativistic component that produces the radio and optical afterglow more than 1.5 days after the explosion. The total energy release, which is dominated by the wide component, is similar to that of other γ-ray bursts, but the contribution of the γ-rays is energetically minor. Given the firm link of GRB030329 with SN2003dh, our result indicates a common origin for cosmic explosions in which, for reasons not yet understood, the energy in the highest-velocity ejecta is extremely variable.
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Cited by
The 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
Zhang, B., Fan, Y. Z., Dyks, J., Kobayashi, S., Meszaros, P., Burrows, D. N., Nousek, J. A., & Gehrels, N. (2006) · The Astrophysical Journal · doi:10.1086/500723 · Cited by 1,079
“This gives a physical motivation to the phenomenological two-component jet model (e.g., Lipunov et al. 2001; Berger et al. 2003; Huang et al. 2004).”
BackgroundGAMMA-RAY BURSTS: PROGRESS, PROBLEMS & PROSPECTS
ZHANG, B., & MÉSZÁROS, P. (2004) · International Journal of Modern Physics A · doi:10.1142/s0217751x0401746x · Cited by 783
McKinney, J. C. (2006) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2006.10256.x · Cited by 599
Broadband observations of the naked-eye γ-ray burst GRB 080319B
Racusin, J. L., Karpov, S. V., Sokolowski, M., Granot, J., Wu, X. F., Pal’shin, V., Covino, S., van der Horst, A. J., Oates, S. R., Schady, P., et al. (2008) · Nature · doi:10.1038/nature07270 · Cited by 526
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Metadata
- Authors
- Berger, E., Kulkarni, S. R., Pooley, G., Frail, D. A., McIntyre, V., Wark, R. M., Sari, R., Soderberg, A. M., Fox, D. W., Yost, S., & Price, P. A.
- Venue
- Nature
- Published
- 2003-11
- Volume
- 426
- Issue
- 6963
- Pages
- 154-157
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1989342971
- Cited by
- 343
- References
- 0
- FWCI
- 21.07
- Type
- journal article
- Language
- en
- Open access
- green
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- Berger, E., Kulkarni, S. R., Pooley, G., Frail, D. A., McIntyre, V., Wark, R. M., Sari, R., Soderberg, A. M., Fox, D. W., Yost, S., & Price, P. A. (2003). A common origin for cosmic explosions inferred from calorimetry of GRB030329. Nature. https://doi.org/10.1038/nature01998
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