Published August 15, 1983
| Version v1
Journal article
Discovery of s-process Nd in Allende residue
Description
New interpretation is given to the isotopic anomalie detected by Lugmair et al. in an acid-resistant residue of the Allende meteorite. If the the 142Nd excess is due to 146Sm decay, as the discoverers proposed, I argue that the decay has occurred in interstellar grains, so that the concludion that 146Sm(1.03 x 108 yr) was alive in the solar system is premature. I show by renormalizing their data that the discovery is likely to be s-process Nd, confirming the survival of red-giang stardust in carbonaceous interstellar dust
Additional details
Publishing Information
- Journal Title
- Astrophys. J., Lett. Ed.
- Journal Volume
- 271
- Journal Issue
- 2
- Series
- Astrophys. J., Lett. Ed.
- Journal Page Range
- L107-L109
- ISSN
- 0571-7248
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 15023430
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CHEMICAL COMPOSITION; INTERSTELLAR GRAINS; ISOTOPE RATIO; METEORITES; NEODYMIUM; NEODYMIUM ISOTOPES; NUCLEOSYNTHESIS; S PROCESS; SAMARIUM; SAMARIUM ISOTOPES; SOLAR SYSTEM
- Descriptors DEC
- ELEMENTS; METALS; PARTICLES; RARE EARTHS; STAR EVOLUTION; SYNTHESIS