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- W4366460311 abstract "The high-precision astrometric mission GAIA recently reported the remarkable discovery of a Sun-like star closely orbiting a dark object, with a semi-major axis and period of $1.4, rm{AU}$ and $187.8$ days respectively. While the plausible expectation for the central dark object is a black hole, the evolutionary mechanism leading to the formation of such a two-body system is highly challenging. Here, we challenge the scenario of a central black hole and show that the observed orbital dynamics can be explained under fairly general assumptions if the central dark object is a stable clump of bosonic particles of spin-0, or spin-1, known as a boson star. We further explain how future astrometric measurements of similar systems will provide an exciting opportunity to probe the fundamental nature of compact objects and test compact alternatives to black holes." @default.
- W4366460311 created "2023-04-22" @default.
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- W4366460311 date "2023-04-18" @default.
- W4366460311 modified "2023-10-01" @default.
- W4366460311 title "A Sun-like star orbiting a boson star" @default.
- W4366460311 doi "https://doi.org/10.48550/arxiv.2304.09140" @default.
- W4366460311 hasPublicationYear "2023" @default.
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