Einstein-Skyrme AdS black holes produce an AdS-specific epicyclic frequency behavior that fits twin-peak QPO data from XTE J1550-564, GRO J1655-40, Sgr A*, and M82 X-1 at Q ≈ 0.6 and r ≈ 4.2M.
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Skyrmion black holes show modified photon spheres, shadows, and sparser Hawking radiation due to the Skyrme coupling strength and background parameters.
Straight and wiggly cosmic string solutions in linearized Horndeski theory exhibit screening for massive scalars, approaching general-relativistic limits.
citing papers explorer
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Astrophysical Signatures of Einstein-Skyrme Anti-de Sitter Black Holes: Epicyclic Frequencies and QPO Constraints
Einstein-Skyrme AdS black holes produce an AdS-specific epicyclic frequency behavior that fits twin-peak QPO data from XTE J1550-564, GRO J1655-40, Sgr A*, and M82 X-1 at Q ≈ 0.6 and r ≈ 4.2M.
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Shadow, Sparsity of Radiation and Energy Emission Rate in Skyrmion Black Holes
Skyrmion black holes show modified photon spheres, shadows, and sparser Hawking radiation due to the Skyrme coupling strength and background parameters.
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Straight and Wiggly Cosmic Strings in Horndeski Theory
Straight and wiggly cosmic string solutions in linearized Horndeski theory exhibit screening for massive scalars, approaching general-relativistic limits.