Extremely Metal-Poor Subdwarfs

Details Extremely Metal-Poor Subdwarfs Extremely Metal-Poor Subdwarfs

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982msngr..27...22g&link_type=abstract

The Messenger, No.27, P. 22, 1982

Computer Science

12

Scientific paper

The formation of our Galaxy and its evolution from an extended spherical halo to a highly flattened spiral disk can be convincingly documented by observing cool dwarf stars that have remained essentially unevolved since they formed billions of years ago. Model predictions of nucleosynthesis in stars, starting from a zerometal primordial composition, combined with a theoretical outline of the galactic collapse, have led to a coarse description of the history of our Galaxy, in which the oldest stars are extremely metal-poor and have highly eccentric galactic orbits with relatively small orbital angular momenta as compared with young disk stars.

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