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Some Results of Classification of Stars in Kapteyn Areas Applied to Galactic Structure in NGP

Published online by Cambridge University Press:  30 March 2016

E. K. Kharadze  and
R. A. Bartaya
E. K. Kharadze
Affiliation:
Abastumani Astrophysical Observatory, Georgian SSR, USSR
R. A. Bartaya
Affiliation:
Abastumani Astrophysical Observatory, Georgian SSR, USSR

Extract

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The observational base of our investigation consists of a two-dimensional MK classification of about 11.000 stars in the 42 Kapteyn Areas situated along the gal.lat-s from −17° up to +72° and 200 Ap, Am stars discovered in the same KA. The dispersion of the applied objective-prism spectra is 160 Â per mm. The data are of high accuracy, close to the Michigan level, and uniformity, which make them reliable. The limit is close to the 12-th ph.mg.

The general conclusion of the undoubted importance is stated: the galactic concentration of dwarfs is closer than it had been assumed until now; on the other hand - the giants are not so closely concentrated to the galactic plane as it has been accepted.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 4 , Issue 2: Highlights of Astronomy. As presented at the XVIth General Assembly of the IAU, 1976 (Part II) , 1977 , pp. 49 - 50
Copyright
Copyright © Reidel 1977