Accurate Calorimetry of GRB 030329
- 1 February 2005
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 619 (2) , 994-998
- https://doi.org/10.1086/426680
Abstract
We report late-time observations of the radio afterglow of GRB 030329. The light curves show a clear achromatic flattening at 50 days after the explosion. We interpret this flattening as resulting from the blast wave becoming trans-relativistic. Modeling of this transition enables us to make estimates of the energy content of the burst, regardless of the initial jet structure or the distribution of initial Lorentz factors of the ejecta. We find, in accordance with other events, that GRB 030329 is well-described by an explosion with total energy of a few times 10^51 erg expanding into a circumburst medium with a density of order unity.Comment: Submitted to ApKeywords
All Related Versions
This publication has 27 references indexed in Scilit:
- The Nonrelativistic Evolution of GRBs 980703 and 970508: Beaming‐independent CalorimetryThe Astrophysical Journal, 2004
- A common origin for cosmic explosions inferred from calorimetry of GRB030329Nature, 2003
- Gamma‐Ray Burst Energetics and the Gamma‐Ray Burst Hubble Diagram: Promises and LimitationsThe Astrophysical Journal, 2003
- A Standard Kinetic Energy Reservoir in Gamma‐Ray Burst AfterglowsThe Astrophysical Journal, 2003
- Early optical emission from the γ-ray burst of 4 October 2002Nature, 2003
- Beaming in Gamma-Ray Bursts: Evidence for a Standard Energy ReservoirThe Astrophysical Journal, 2001
- On the Energy of Gamma‐Ray BurstsThe Astrophysical Journal, 2001
- A 450 Day Light Curve of the Radio Afterglow of GRB 970508: Fireball CalorimetryThe Astrophysical Journal, 2000
- Wind Interaction Models for Gamma‐Ray Burst Afterglows: The Case for Two Types of ProgenitorsThe Astrophysical Journal, 2000
- The radio afterglow from the γ-ray burst of 8 May 1997Nature, 1997