Abstract
view Abstract Citations (2) References (18) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS 26Al and Time Scales of the Solar Nebula Liffman, Kurt Abstract The survival time (t) of protostellar accretion disks as infrared luminous, optically thick structures has been found to satisfy the constraint: t = 10 exp 7 yr or less. This sets a possible lower bound of 3 x 10 exp -9 on the ratio Al-26/Al-27 if a homogeneous mix of 'live' Al-26 existed throughout the solar nebula. The observed values of meteoritic Al-26/Al-27 range from 5 x 10 exp -5 to 5 x 10 exp -8 and are thus compatible with a 7.1 x 10 exp 6 yr age of an active solar nebula. Publication: The Astrophysical Journal Pub Date: October 1992 DOI: 10.1086/186589 Bibcode: 1992ApJ...398L.111L Keywords: Accretion Disks; Aluminum Isotopes; Meteoroids; Solar System; Star Formation; Decay Rates; Molecular Clouds; Protostars; Astrophysics; ACCRETION; ACCRETION DISKS; METEOROIDS; SOLAR SYSTEM: FORMATION; STARS: FORMATION full text sources ADS |
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