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Three New Models of Layered Inhomogeneous Elliptical Galaxies

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Abstract

To solve some problems of celestial mechanics and astrophysics, three new models of an elliptical galaxy (EG) have been created, which are in good agreement with modern understanding of the structure of such galaxies. Based on these models, the total gravitational (potential) energy and rotational kinetic energy of an EG, as well as the velocity dispersion at a distance of its effective radius, are determined. A new method is proposed for determining the average values of the scale radius of an EG and the density at its center, as well as the average value of its key parameter—density \(\beta \)—and its value at a distance corresponding to the effective radius of the galaxy. The results obtained are applied to sixty EGs and presented in the form of tables for ten galaxies.

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ACKNOWLEDGMENTS

I am grateful to professor B.P. Kondratyev for valuable advices and remarks.

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Authors and Affiliations

  1. Sternberg Astronomical Institute, Lomonosov Moscow State University, 119991, Moscow, Russia

    S. A. Gasanov

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  1. S. A. Gasanov
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Correspondence to S. A. Gasanov.

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Translated by E. Chernokozhin

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Gasanov, S.A. Three New Models of Layered Inhomogeneous Elliptical Galaxies. Astron. Rep. 65, 723–736 (2021). https://doi.org/10.1134/S1063772921090031

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