RGU-photometric space-densities in a field close to the galactic northpole (NGC 4147) compared to the gradients predicted by the five Basle standard models

Details RGU-photometric space-densities in a field close to the galactic northpole (NGC 4147) compared to the gradients predicted by the five Basle standard models RGU-photometric space-densities in a field close to the galactic northpole (NGC 4147) compared to the gradients predicted by the five Basle standard models

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26as...89..217f&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 89, no. 2, Aug. 1991, p. 217-224. Research supported by SNSF

Astronomy and Astrophysics

Astrophysics

1

Astronomical Models, Astronomical Photometry, Galactic Structure, Space Density, Color-Color Diagram, Density Distribution, Histograms

Scientific paper

Results are presented of the last contribution to the Model Comparison Phase (MCP) of the Basle Halo Program. In this work, RGU photometric total (photometric population I + II) space density histograms are determined for late-type giants and 1-mag-interval main-sequence M(G) groups (M/G/ between 3 mag and 8 mag) along the direction to NGC 4147, using the Fenkart et al. (1987) Basle method, and are compared to the gradients predicted by the standard set of five multicomponent models of the MCP. Results yield evidence for the existence of a Thick Disk component in the galactic density distribution.

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