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Scalar waves from unbound orbits in a TS spacetime: PN reconstruction of the field and radiation losses in a self-force approach

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arxiv 2502.21040 v2 pith:C2XE2GWI submitted 2025-02-28 gr-qc

G. Di Russo , M. Bianchi , D. Bini This is my paper · ORCID
classification gr-qc
keywords approachdomainfieldlossesorbitsradiationreconstructionscalar
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We analyze scalar wave emission from unbound orbits in a Topological Star spacetime. Our study uses a self-force approach and leads to a Post-Newtonian reconstruction of the field along the orbit, both in the time domain and in the frequency domain. We also compute leading-order radiation losses, namely energy and angular momentum.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. 5d Schwarzschild-Tangherlini spacetime: MST-like formalism for a Reduced Confluent Heun Equation

    gr-qc 2026-07 conditional novelty 7.0 of 10

    An original MST-like formalism is constructed for the reduced confluent Heun radial equation of 5D Schwarzschild-Tangherlini scalars, validated by matching the renormalized angular momentum to the quantum Seiberg-Witt...

  2. The radial action for massive particles in spherically symmetric geometries: Exact resummation at any PM order

    gr-qc 2026-07 conditional novelty 6.0 of 10

    The massive-particle radial action and scattering angle in Schwarzschild, Schwarzschild-Tangherlini and D3-brane geometries are resummed in hypergeometric/Fox-Wright form, and the massive scalar quantum a-cycle is ide...

  3. Scattering of a point mass by a Schwarzschild black hole: radiated energy and angular momentum

    gr-qc 2025-07 conditional novelty 6.0 of 10

    The 5PM-1SF radiated energy and the complete 4PM-1SF radiated angular momentum to 7PN order are derived for a point mass scattering off a Schwarzschild black hole, along with the resulting 5PM radiation-reacted scatte...

  4. Topological Stars and scalar wave equation: Exact resummation of the renormalized angular momentum in the eikonal limit

    gr-qc 2025-06 conditional novelty 6.0 of 10

    For Topological Stars, the eikonal-limit renormalized angular momentum is expressed as hypergeometric functions tied to the null geodesic radial action, generalizing the Schwarzschild resummation.

  5. Scattering angle in a Topological Star spacetime: a self-force approach

    gr-qc 2025-06 conditional novelty 6.0 of 10

    An analytic, large-angular-momentum scattering angle for unbound geodesics and scalar self-force in Topological Star spacetime, with an unresolved regulator in the conservative self-force piece.

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