Astronomy and Astrophysics – Astronomy
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...202.3605f&link_type=abstract
American Astronomical Society Meeting 202, #36.05; Bulletin of the American Astronomical Society, Vol. 35, p.750
Astronomy and Astrophysics
Astronomy
Scientific paper
The link between supernovae and gamma-ray bursts has strengthened with the realization that long-duration gamma-ray bursts may be produced by the collapse of massive stars. Both events release of order 1051 erg of energy, but they differ in how that energy is distributed to their ejecta. Supernovae explosions are roughly spherical and eject material with expansion velocities ˜10,000 km s-1. Gamma-ray burst outflows are highly collimated and the ejecta have initial Lorentz factors of over 100. Both supernovae and gamma-ray bursts give rise to long-lived radio emission which can be detected by current or future planned radio instruments. I will review the current state of our knowledge about the properties of these two classes of radio transients, making predictions about what might be seen for a new generation of instruments (ATA, EVLA, LOFAR, SKA, etc).
The NRAO is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
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