In-depth Study of the Nearest Engine-Driven Cosmic Explosions

Astronomy and Astrophysics – Astronomy

Scientific paper

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Chandra Proposal Id #08500956

Scientific paper

Just a decade ago, astronomers thought stellar collapse was primarily a spherical process. Gamma-ray bursts, with their powerful jets (powered by a central engine) and at the same time a spherical explosion (supernova) have upset this paradigm. Empirically there appears to be a wide range in the energy of the spherical explosion and the jets. This opens up the possibility that the spherical+engine framework is the correct paradigm for all explosions. Here we propose an in-depth study of the nearest core-collapse events which show evidence for a central engine (e.g. SN 1998bw and the nearest GRBs). Our synergistic multi-wavelength effort (radio, optical and proposed Chandra observations) are designed to study both the spherical and the jet components under this framework.

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