Model-compared RGU-photometric space-densities in a field close to the galactic northpole - M 3 (l = 42 deg, B = +78 deg)

Details Model-compared RGU-photometric space-densities in a field close to the galactic northpole - M 3 (l = 42 deg, B = +78 deg) Model-compared RGU-photometric space-densities in a field close to the galactic northpole - M 3 (l = 42 deg, B = +78 deg)

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26as...84..413f&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 84, no. 3, Sept. 1990, p. 413-420. Research supported by SNS

Astronomy and Astrophysics

Astrophysics

2

Astronomical Photometry, Giant Stars, Late Stars, Main Sequence Stars, Space Density, Stellar Color, Astronomical Models, Galactic Structure, Milky Way Galaxy, Ubv Spectra

Scientific paper

M 3 belongs to the fields of the Basle Halo Program not yet treated within its Model-Comparison Phase (MCP) because their space density functions for late-type giants and for main-sequence stars of the photometric populations I and II had to be redetermined according to the RGU-photometric Basle method of Becker (1965) in order to be in a form fit for being subjected to the comparison method homogeneously applied within the MCP. In spite of the rather bright limiting magnitude of this field, the result is entirely consistent with the ones found in all the previous investigations of this phase by confirming the existence of a Galactic Thick Disk component significantly contributing to the space density distribution in the Galaxy.

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