Abundances in G Dwarf Stars.IV. a Redetermination of the Abundances in G Dwarfs in the Hyades.
Abstract
A redetermination of the abundances of Na, Mg, Si, Ca, Sc, Ti, Cr, Mn, Fe, Ni, and Ba in G dwarfs in the Hyades has been carried out. The method was the same as that used in a previous determination (Wallerstein and Helfer 1959), but with new material at higher dispersion and with a different telescope and spectrograph. Another star of temperature even closer to that of the sun has been included. The conclusions of the previous study are confirmed and strengthened; there appears to be a small and possibly significant general enrichment of the metals by approximately 20 per cent in the Hyades stars when compared with the sun. Barium is again found to be overabundant by approximately a factor of 2.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1961
- DOI:
- 10.1086/147006
- Bibcode:
- 1961ApJ...133..101P