International Journal of Astronomy
pISSN: 21698848 eISSN: 21698856
2020; 9(2): 2730
doi:10.5923/j.astronomy.20200902.01
Received: Dec. 6, 2020; Accepted: Dec. 20, 2020; Published: Dec. 26, 2020
Adrián G. Cornejo
Electronics and Communications Engineering from Universidad Iberoamericana, Santa Rosa, Querétaro, Mexico
Correspondence to: Adrián G. Cornejo , Electronics and Communications Engineering from Universidad Iberoamericana, Santa Rosa, Querétaro, Mexico.
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Copyright © 2020 The Author(s). Published by Scientific & Academic Publishing.
This work is licensed under the Creative Commons Attribution International License (CC BY).
http://creativecommons.org/licenses/by/4.0/
This work describes the hypothesis where the explanation of the rotational velocity of spiral Sa galaxies is based on the General Theory of Relativity solution. In this solution, a spiral Sa galaxy disk would rotate like a solid body, so that the stars into the spiral Sa galaxy must be rotating with the system at a uniform angular velocity. On these assumptions, we define the equation that describes the rotational velocity of stars in a spiral Sa galaxy based on the relativistic solution and present examples of the rotation curves of spiral Sa galaxies NGC 4378 and NGC 4594, comparing our estimates with the observations, finding a good approximation between the estimated rotation curves and the known rotation curves of these spiral Sa galaxies.
Keywords: Galaxies: spiral, kinematics and dynamics, General Theory of Relativity
Cite this paper: Adrián G. Cornejo , The Rotational Velocity of Spiral Sa Galaxies in the General Theory of Relativity Solution, International Journal of Astronomy, Vol. 9 No. 2, 2020, pp. 2730. doi: 10.5923/j.astronomy.20200902.01.
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