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- W3157563891 abstract "In this paper, we investigate influence of Earth's orbit on the shadow of Sgr A*. Motivated by inclination of the Earth's orbit that is not located at galactic plane, we consider the black hole shadow for arbitrary inclinations and different velocities of observers. It is found that rotation axis of a black hole might not be extracted from its shadow, since the ways of the shadow getting distorted depend not only on the spin of the black hole, but also velocities of observers. Namely, appearance of the shadow could be rotated by an angle in observers' celestial sphere for an observer in motion. In order to consider the Earth's orbit for the shadow of Sgr A*, we present a formalism for calculating the shadow in terms of the local velocity expansion. It shows that influence of the orbital velocity of the Earth on the shadows of Sgr A* is much larger than that of the displacement in Earth's orbit. The deviation of size of the shadow is around $10^{-4}$. And the deviation of the distortion parameter of the shadow is around $10^{-14}$." @default.
- W3157563891 created "2021-05-10" @default.
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- W3157563891 date "2021-04-29" @default.
- W3157563891 modified "2023-09-27" @default.
- W3157563891 title "Influence of Earth's orbit on the shadow of Sgr A*" @default.
- W3157563891 hasPublicationYear "2021" @default.
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