Boron in Population II Dwarfs - Primeval or Spallated?

Details Boron in Population II Dwarfs - Primeval or Spallated? Boron in Population II Dwarfs - Primeval or Spallated?

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992hst..prop.3479e&link_type=abstract

HST Proposal ID #3479

Physics

Hst Proposal Id #3479

Scientific paper

We propose to observe the B I 2496-97A lines with the GHRS in the echelle mode (SSA) in the spectra of 2 metal-poor, unevolved stars, in which beryllium has recently been found and with a new probable identification of boron in one of them. The goal is to find out whether Be and B in Pop. II dwarfs were synthesized in the Big Bang or by cosmic ray induced spallation in the early Galaxy, and in either case significantly constrain the multitudinous possibilities currently being debated in the literature. The programme will contribute significantly to the understanding of possible inhomogeneities induced by the quark to hadron phase transition in the Early Universe and of spallation processes and cosmic ray fluxes in the early Galaxy.

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