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General Relativistic Aberration Equation and Measurable Angle of Light Ray in Kerr–de Sitter Spacetime by Arakida, Hideyoshi (author) is a Physics and Astronomy article available to read on EtoBox.
What is General Relativistic Aberration Equation and Measurable Angle of Light Ray in Kerr–de Sitter Spacetime about?
As an extension of our previous paper, instead of the total deflection angle α, we will mainly focus on the discussion of measurable angle of the light ray ψP at the position of observer P in Kerr–de Sitter spacetime, which includes the cosmological constant Λ. We will investigate the contribution of the radial and transverse motion of the observer which are connected with radial velocity vr and transverse velocity bvφ (b is the impact parameter) as well as the spin parameter a of the central object which induces the gravito-magnetic field or frame dragging and the cosmological constant Λ. The general relativistic aberration equation is employed to take into account the influence of motion of the observer on the measurable angle ψP. The measurable angle ψP derived in this paper can be applicable to the observer placed within the curved and finite-distance region in the spacetime. The equation of light trajectory will be obtained in such a sense that the background is de Sitter spacetime instead of Minkowski one. As an example, supposing the cosmological gravitational lensing effect, we assume that the lens object is the typical galaxy and the observer is in motion with respect to t
Who reads General Relativistic Aberration Equation and Measurable Angle of Light Ray in Kerr–de Sitter Spacetime?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- Arakida, Hideyoshi (author)
- Publisher
- MDPI AG
- Published
- 2021
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)