Statistics – Computation
Scientific paper
Mar 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.249..368s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 249, March 15, 1991, p. 368-373.
Statistics
Computation
59
Abundance, Computational Astrophysics, Dwarf Stars, G Stars, Galactic Structure, Chemical Evolution, Density Distribution, Oxygen, Star Formation, Stellar Models
Scientific paper
The oxygen abundance distribution of G-dwarfs in the solar cylinder is determined using the G-dwarf data of Pagel and Patchett (1975) as local normalization and two different types of models of the local, vertical structure of the galactic disk. One of these is the model of Norris and Ryan 1989), while the other is obtained using the Polak-Ribiere method to fit the data of Kuijken and Gilmore (1989). The results are compared to simple chemical-evolution modes, and infall time scales of 3-4.5 and 4-6 Gyr are derived. It is found that the infall time scales obtained here compare well with the empirically determined halo formation time scale of 3 Gyr obtained by Schuster and Nissen. This suggests that the formation of the halo and disk were coupled processes in the sense that the halo star formed out of the gas, which later became the galactic disk.
No associations
LandOfFree
On the G-dwarf abundance distribution in the solar cylinder does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the G-dwarf abundance distribution in the solar cylinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the G-dwarf abundance distribution in the solar cylinder will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-937023