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@inproceedings{77837, author = {Posada Aguirre, Nelson Camilo}, address = {Opava}, booktitle = {Proceedings of RAGtime 23-25: Workshops on black holes and neutron stars}, keywords = {black hole mimicker; gravastar; interior solutions; Tidal deformability}, howpublished = {tištěná verze "print"}, language = {eng}, location = {Opava}, isbn = {978-80-7510-577-6}, pages = {1-11}, publisher = {Slezská univerzita v Opavě, Fyzikální ústav v Opavě}, title = {Tidal deformability of ultracompact Schwarzschild stars and their approach to the black hole limit}, url = {https://proceedings.physics.cz/wp-content/uploads/2023/12/01_pos.pdf}, year = {2023} }
TY - JOUR ID - 77837 AU - Posada Aguirre, Nelson Camilo PY - 2023 TI - Tidal deformability of ultracompact Schwarzschild stars and their approach to the black hole limit PB - Slezská univerzita v Opavě, Fyzikální ústav v Opavě CY - Opava SN - 9788075105776 KW - black hole mimicker KW - gravastar KW - interior solutions KW - Tidal deformability UR - https://proceedings.physics.cz/wp-content/uploads/2023/12/01_pos.pdf N2 - A well-known result in general relativity is that the tidal Love numbers of black holes vanish. In contrast, different configurations of a black hole may have non-vanishing Love numbers. For instance, it has been conjectured recently that the Love number of generic exotic compact objects (ECOs) shows a logarithmic behaviour. Here, we analyse the ultracompact Schwarzschild star, which allows the compactness to cross and go beyond the Buchdahl limit. This Schwarzschild star has been shown to be a good black hole mimicker. Moreover, it has been found that the Love number of these objects approaches zero as their compactness approaches the black hole limit. Here, we complement those results by showing that the Love number for these configurations follows an exponentially decaying behaviour rather than the logarithmic behaviour proposed for generic ECOs. ER -
POSADA AGUIRRE, Nelson Camilo. Tidal deformability of ultracompact Schwarzschild stars and their approach to the black hole limit. In \textit{Proceedings of RAGtime 23-25: Workshops on black holes and neutron stars}. Opava: Slezská univerzita v Opavě, Fyzikální ústav v Opavě, 2023, s.~1-11. ISBN~978-80-7510-577-6.
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