On the possibility of applying the quasi-isothermal St\"ackel's model to our Galaxy

TL;DR

This paper applies a quasi-isothermal Stäckel's model to our Galaxy, fitting its rotation curve to HI data and estimating structural parameters to understand its mass distribution.

Contribution

It introduces the application of a specific quasi-isothermal Stäckel's model to the Galaxy, providing estimates of its structural and density parameters.

Findings

Model fits the Galaxy's rotation curve using HI data.

Density contours of the Galaxy are derived from the model.

Structural parameters of the Galaxy are estimated.

Abstract

An earlier derived quasi-isothermal St\"ackel's model of mass distribution in stellar systems and the corresponding formula for space density are applied to our Galaxy. The model rotation curve is fitted to HI kinematical data. The structural and scale parameters of the model are estimated and the corresponding density contours for our Galaxy are presented.