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- W4384283347 abstract "Observations of the S-stars, the cluster of young stars in the inner 0.1 pc of the Galactic Center, have been crucial in providing conclusive evidence for a supermassive black hole at the center of our galaxy. Since some of the stars have orbits less than that of a typical human lifetime, it is possible to observe multiple orbits and test the weak-field regime of general relativity. Current calculations of S-star orbits require slow and expensive computations in order to numerically solve geodesic equations for many small time steps. In this paper, we present a computationally efficient, first-order post-Newtonian model for the astrometric and spectroscopic data gathered for the S-stars. We find that future, 30-m class telescopes -- and potentially even current large telescopes with very high spectroscopic resolution -- may be able to detect the Shapiro effect for an S-star in the next decade or so." @default.
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- W4384283347 date "2023-07-01" @default.
- W4384283347 modified "2023-09-27" @default.
- W4384283347 title "Analytic Post-Newtonian Astrometric and Spectroscopic Models of Orbits around Black Holes" @default.
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- W4384283347 doi "https://doi.org/10.3847/1538-4357/accb52" @default.
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