[Triumf-seminars] TRIUMF Seminar today at 14:00

postmaster@admin.triumf.ca postmaster@admin.triumf.ca
Mon, 18 Apr 2005 05:00:01 -0700


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Date/Time: Mon 2005-04-18 at 14:00

Location:  Auditorium          

Speaker:   Juergen Schaffner-Bielich (Johann Wolfgang Goethe University, Frankfurt)

Title:     Exotic nuclei and compact stars

Abstract: Neutron stars are the final endpoint of the evolution of massive stars and consist of the densest material in the universe we presently know of. The conditions are so extreme that the crust consists of a lattice of neutron-rich nuclei up to the neutron-dripline. We report on the path to the dripline, which has only recently been investigated in relativistic nuclear models using computed nuclear mass tables of thousands of nuclei. Also, the impact of more exotic forms of neutron star material, like hyperons and quarks, on the mass-radius relation is outlined. In particular, a new stable solution exists besides ordinary neutron stars for a strong first order phase transition in the core of compact stars. The existence of exotic nuclei and exotic matter can show up in x-ray bursts as well as in supernovae and neutron star mergers and can serve as a possible source for gamma-ray bursts and gravitational waves.

Theory Research Scientist Candidate

Stimulants available 15 minutes before the talk.

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