Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...299..616b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 299, Dec. 15, 1985, p. 616-632. SNSF-supported research.
Astronomy and Astrophysics
Astrophysics
45
Astronomical Catalogs, Milky Way Galaxy, Star Distribution, Color-Magnitude Diagram, Globular Clusters, Stellar Color, Stellar Luminosity
Scientific paper
The standard Bahcall-Soneira (1980) Galaxy model is compared with the data from the 12 fields in the Basel star catalog that are at Galactic latitudes above 20 deg and have E(B-V) of less than 0.1 mag. Good agreement is found between the calculated and observed color distributions, as well as star counts, for all the fields. The globular cluster feature that is observed in the luminosity function of globular clusters near M(v) = +1 to +4 mag is also present in the spheroid field stars. It is possible to assign some of the spheroid stars from the standard two-component Galaxy model (thin disk plus de Vaucouleurs spheroid) to a third stellar component (a thick disk with a spheroid luminosity function) without disturbing the agreement with observations.
Bahcall John N.
Buser Roland
Fenkart R. P.
Ratnatunga Kavan U.
Spaenhauer Andreas
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