1971/08/01 by J. B. Hearnshaw · 1 citation
Physics and Astronomy · #Stellar, planetary, and galactic studies #Astronomy and Astrophysical Research #Astronomical and nuclear sciences
paper · doi:10.1086/151065
openalex publication_date 1971/08/01 · openalex created_date 2025/10/10 · openalex updated_date 2025/11/06
A differential coarse curve-of-growth analysis has been carried out with respect to the Sun for the high-velocity field subgiant 31 Aql. The results show most metals to be 4 times as abundant as in the Sun. The age of 31 Aql is probably similar to that of NGC 188, the oldest open cluster known. The results for 31 Aql are contrary to the hypothesis that the oldest stars in the Galaxy should be metal poor.