Galactic chemical evolution with low and high primordial lithium

Abstract

view Abstract Citations (54) References (67) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Galactic Chemical Evolution with Low and High Primordial Lithium Mathews, G. J. ; Alcock, C. R. ; Fuller, G. M. Abstract Two scenarios for the galactic chemical evolution of lithium are discussed. In one, the primordial Li-7 abundance is taken to be that presently observed in Population II stars. This value is subsequently enriched to the Population I value by stellar sources. In the other scenario, the primordial Li-7 abundance is taken to be as high as that suggested by baryon number inhomogeneous cosmological models in which the universe is closed with baryons. This value is then depleted to the present-day Population I value by astration. The Population II value is obtained by gradual main-sequence destruction. The models include the results of new calculations of lithium destruction and production in stars. The possibility is discussed that the recently derived upper limit to the lithium absorption along the line of sight to SN 1987A may provide a means to distinguish between these two scenarios. Publication: The Astrophysical Journal Pub Date: February 1990 DOI: 10.1086/168329 Bibcode: 1990ApJ...349..449M Keywords: Chemical Evolution; Galactic Evolution; Lithium; Astronomical Models; Interstellar Matter; Metallicity; Nuclear Fusion; Astrophysics; ABUNDANCES; COSMOLOGY; GALAXIES: EVOLUTION; INTERSTELLAR: ABUNDANCES; NUCLEOSYNTHESIS full text sources ADS | data products SIMBAD (6)