A search for early-G dwarf stars towards the south Galactic pole

Details A search for early-G dwarf stars towards the south Galactic pole A search for early-G dwarf stars towards the south Galactic pole

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....95..739c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 95, March 1988, p. 739-744, 959-961. NSERC-supported research.

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Computation

5

Dwarf Stars, Early Stars, G Stars, Galactic Structure, Metallic Stars, Ubv Spectra, Computational Astrophysics, Giant Stars, Schmidt Telescopes, Southern Sky, Stellar Spectra

Scientific paper

The authors have isolated a natural group of early-G dwarf stars (F8 - G5 V), of all metallicities, from thin-prism spectra (1360 Å mm-1) taken with Schmidt telescopes. These stars are ideal probes of the vertical composition gradient in the disk-to-inner-halo region of the Galaxy since they are the brightest unevolved stars. The survey towards the South Galactic Pole is described. Auxiliary UBV photometric methods were used to make an initial list of the G dwarf stars, but the final selection was determined by membership of the spectroscopic natural group. The authors present the candidate list of 214 early-G dwarf stars, ranging between 11.5 < V < 16.4 in a 4 sq. deg area. Completeness for this search is discussed.

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