The interstellar Li-7/Li-6 isotope ratio toward Zeta Ophiuchi and Zeta Persei
1993; IOP Publishing; Volume: 409; Linguagem: Inglês
10.1086/186860
ISSN1538-4357
AutoresDavid M. Meyer, I. Hawkins, E. L. Wright,
Tópico(s)Particle accelerators and beam dynamics
Resumoview Abstract Citations (38) References (18) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Interstellar 7Li/ 6Li Isotope Ratio toward zeta Ophiuchi and zeta Persei Meyer, David M. ; Hawkins, Isabel ; Wright, Edward L. Abstract High S/N, high-resolution observations of the interstellar Li absorption lines toward the stars Zeta Ophiuchi and Zeta Persei are reported. Li I line profiles indicate the presence of both the Li-7 and Li-6 doublets in these two sightlines. Best-fit values for the interstellar Li-7/Li-6 isotope ratio are 6.8 (+1.4/-1.7) towards Zeta Ophiuchi and 5.5 (+ 1.3/-1.1) toward Zeta Persei. Measurement of 6.8 (+1.4/-1.7) for the interstellar Li-7/Li-6 isotope ratio towards Zeta Ophiuchi does not support the lower limit of 25 determined by Ferlet and Dennefeld (1984). The current value of the interstellar Li-7/Li-6 isotope ratio is the result of various lithium production and destruction processes involving stars, cosmic rays, and the big bang. Publication: The Astrophysical Journal Pub Date: June 1993 DOI: 10.1086/186860 Bibcode: 1993ApJ...409L..61M Keywords: Absorption Spectra; Abundance; Galactic Evolution; Interstellar Matter; Line Spectra; Lithium; B Stars; Charge Coupled Devices; Astrophysics; GALAXY: EVOLUTION; ISM: ABUNDANCES; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; ABUNDANCES full text sources ADS | data products SIMBAD (6)
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