Jet Induced Supernovae

Details Jet Induced Supernovae Jet Induced Supernovae

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.3201h&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #32.01; Bulletin of the American Astronomical Society, Vol. 34, p.685

Astronomy and Astrophysics

Astronomy

Scientific paper

Core collapse supernovae (SN) are the final stages of stellar evolution in massive stars during which the central region collapses, forms a neutron star (NS), and the outer layers areejected. Recent explosion scenarios assumed that the ejection is due to energy deposition by neutrinos into the envelope but detailed models do not produce powerful explosions. There is mounting evidence for an asphericity in the SN which is difficult to explain within thispicture. This evidence includes the observed high polarization, pulsar kicks,high velocity iron-group and intermediate-mass elements material observed inremnants, etc. The discovery of highly magnetars revived the idea that the basic mechanismfor the ejection of the envelope is related to a highly focused MHD-jet formed at the NS. Our 3-D hydro simulations of the jet propagation through the star confirmed that the mechanism can explain the asphericities. In this paper, detailed 3-D models for jet induced explosions of "classical"core collapse supernovae are presented. We demonstrate the influence of thejet properties and of the underlaying progenitor structure on the finaldensity and chemical structure. We discuss the observational consequences,predictions, tests of this scenarios, and the consequences for supernovae athigh redshifts to probe the early univers.

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