Abstract
view Abstract Citations (149) References (56) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS CNO abundances and hydrodynamic studies of the nova outburst. V. 1.00 M sun models with small mass envelopes. Starrfield, S. ; Truran, J. W. ; Sparks, W. M. Abstract The paper reports on an investigation into the consequences of thermonuclear runaways in accreted hydrogen envelopes of 100 millionths of a solar mass on 1-solar-mass white dwarfs. These evolutionary sequences predict that from 10 to 50 millionths of a solar mass will be ejected with speeds from 300 to 3800 km/s (kinetic energies of 10 to the 44th-45th power ergs). Absolute visual magnitudes as high as -8.1 are attained, well within the observed range for fast novae. In addition, the shapes of the theoretical light curves are more reminiscent of an observed fast-nova light curve than those in earlier studies. The ejected material is strongly enhanced in the products of incomplete CNO burning; the most abundant of the ejected nuclei is C-13, followed by N-14 and C-12. The differences from previous studies are attributable to the lower peak temperatures reached in these sequences. These models also produce a large overabundance of Li-7, suggesting that novae may represent significant contributors to the galactic enrichment of this nucleus. Publication: The Astrophysical Journal Pub Date: November 1978 DOI: 10.1086/156598 Bibcode: 1978ApJ...226..186S Keywords: Abundance; Carbon Isotopes; Nitrogen Isotopes; Novae; Nuclear Fusion; Oxygen Isotopes; Stellar Evolution; White Dwarf Stars; Light Curve; Stellar Envelopes; Stellar Mass Ejection; Stellar Models; Astrophysics; Accretion:White Dwarfs; Cno:Novae; Envelopes:Novae; Novae:Models; Novae:Outbursts full text sources ADS | data products SIMBAD (2) Related Materials (4) Part 1: 1972ApJ...176..169S Part 2: 1974ApJS...28..247S Part 3: 1974ApJ...192..647S Part 4: 1976ApJ...208..819S
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