Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...383..615b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 383, Dec. 20, 1991, p. 615-620. Research supported by University of Washing
Astronomy and Astrophysics
Astrophysics
1
Charged Particles, Massive Stars, Negative Ions, Nuclear Astrophysics, Stellar Interiors, Abundance, Hydrogen, Nuclear Fusion, Weak Interactions (Field Theory)
Scientific paper
The effects of negatively charged nonstrongly interacting massive particles, denoted as X(-) particles, on stellar hot hydrogen burning are considered. Such particles would bind to nuclei and catalyze a very efficient hydrogen-burning cycle. This nuclear burning cycle would occur because the additional binding energy provided by binding the X(-) particles to Be-8 nuclei creates a stable entity. Although such a cycle would not be likely to be of significance to present-day stars, it could significantly alter the range of masses for which primordial Population III stars explode. The nucleosynthesis produced in these X(-) induced supernovae can differ markedly from that of ordinary beta-limited CNO cycle-induced explosions of very massive and super-massive stars. Thus the resulting abundances night provide constraints on the existence of intermediate life-time X(-) particles and/or the Population III initial mass function.
Boyd Richard N.
Fuller George M.
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