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Vashakidze, M.A. and ვაშაკიძე, მ. (1938) The distribution of A, F and G Type Stars in the Direction Perpendicular to the Galactic Plane and in the Plane of Symmetry / A, F და G ტიპის ვარსკვლავთა განაწილება გალაქტიკის სიბრტყის მართობულად და სიმეტრიის სიბრტყეში. აბასთუმნის ასტროფიზიკური ობსერვატორიის ბიულეტენი / Bulletin of the Abastumani Astrophysical Observatory (2). pp. 109-129.
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Abstract
The offered investigation continues our work "On the space distribution of F type stars" published in the Bulletin of Abastumani Observatory. The method of the numerical solution of Schwarzschield's integral equation has been improved and more material utilized, the distribution of star of three different spectral classes being investigated. In calculating we had to assume that for A type stars the density in the direction of the pole and to the galactic centre is constant as far as 200 and 126 parsec, respectively. The density of F and G type stars in both directions is assumed to be constant up to the distance of 100 and 50 parsec, respectively; this is reflected in Table IX. If we assume the density in the vicinity of the Sun to be equal to a unit we obtain according to Table X the curves plotted n Fig.3 and Fig.4 which show that the density decreases relatively with the distance. To check our results we give the comparison of our data (the distribution of density in the direction z) with those by other authors. For this purpose Table IX from the work by Van Rhijn and Schwassmann was taken in which the results f star density determinations obtained by Van Rhijn and Oort are compared. It is to see for this table that our results agree quite well with those obtained by Van Rhijn and Oort, if we pass over the fact that the relative distribution of A type stars is a little different. August, 1937
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Institutes > Evgeny Kharadze Abastumani National Astrophysical Observatory |
| Depositing User: | თამარ ჭაღიაშვილი |
| Date Deposited: | 21 May 2018 10:27 |
| Last Modified: | 02 Jun 2018 18:41 |
| URI: | http://eprints.iliauni.edu.ge/id/eprint/7994 |
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