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Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz


IMPACT FACTOR 2018: 0.350

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ICV 2017: 121.03

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2543-6376
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Volume 27, Issue 1

Issues

Model of the Galaxy with Hot Dark Matter

Dmitri L. Khokhlov
Published Online: 2018-12-13 | DOI: https://doi.org/10.1515/astro-2018-0034

Abstract

The model of the galaxy is considered as a structure of the baryonic matter embedded into the hot dark matter. The dark matter is supposed to come into being from the decaying matter after the epoch of structure formation. The galaxy is divided into two regions. In the inner region, the baryonic matter predominates over the hot dark matter while in the outer region, the hot dark matter predominates over the baryonic matter. The motion of the test particle is bounded in the inner region (elliptic orbit) and unbounded in the outer region (parabolic orbit). Observational constraints on the proposed model are considered from the rotation curves of the galaxies: Milky Way, M33, NGC 2366 and IC 2574.

Keywords: galaxies: kinematics and dynamics; galaxies: structure; dark matter

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About the article

Received: 2017-10-10

Accepted: 2018-07-26

Published Online: 2018-12-13

Published in Print: 2018-12-01


Citation Information: Open Astronomy, Volume 27, Issue 1, Pages 294–302, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2018-0034.

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© by Dmitri L. Khokhlov, published by De Gruyter. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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