2018/09/24 by J. Isern, Jordi Isern, Isern, Jordi +2
Physics and Astronomy · #Astro and Planetary Science #Earth and Planetary Astrophysics (astro-ph.EP) #FOS: Physical sciences #Solar and Space Plasma Dynamics #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies #astro-ph.EP #astro-ph.SR
paper · pdf · doi:10.48550/arxiv.1809.08789
Submitted to Proceedings of the 21st European Workshop on White Dwarfs (5 pages, 6 figures)
arxiv created 2018/09/24 · openalex publication_date 2018/09/24 · arxiv updated 2018/09/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The analysis of noble gases in primitive meteorites has shown the existence of anomalous isotopic abundances when compared with the average Solar System values. In particular it has been found that some graphite grains contain a unexpected high abundance of neon-22. This excess of neon-22 is usually attributed to the radioactive decay of sodium-22 produced in the O/Ne burning layer of a core collapse supernova. In this talk we speculate about a different origin, the disruption of a crystallized white dwarf by a compact object (white dwarf, neutron star or black hole).