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- W2000764548 abstract "We study the emissivity properties of a geometrically thin, optically thick, steady accretion disc about a static boson star. Starting from a numerical computation of the metric potentials and the rotational velocities of the particles in the vicinity of the compact object, we obtain the power per unit area, the temperature of the disc, and the spectrum of the emitted radiation. In order to see if different central objects could be actually distinguished, all these results are compared with the case of a central Schwarzschild black hole of equal mass. We considered different situations both for the boson star, assumed with and without self-interactions, and the disc, whose internal commencement can be closer to the center than in the black hole case. We finally make some considerations about the Eddington luminosity, which becomes radially dependent for a transparent object. We found that, particularly at high energies, differences in the emitted spectrum are notorious. Reasons for that are discussed." @default.
- W2000764548 created "2016-06-24" @default.
- W2000764548 creator A5047522800 @default.
- W2000764548 date "2002-04-01" @default.
- W2000764548 modified "2023-09-23" @default.
- W2000764548 title "Accretion disc onto a static non-baryonic compact object" @default.
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- W2000764548 doi "https://doi.org/10.1016/s0550-3213(02)00038-x" @default.
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