تقرير
Perturbations of the Vaidya metric in the frequency domain: Quasi-normal modes and tidal response
| العنوان: | Perturbations of the Vaidya metric in the frequency domain: Quasi-normal modes and tidal response |
|---|---|
| المؤلفون: | Capuano, Lodovico, Santoni, Luca, Barausse, Enrico |
| سنة النشر: | 2024 |
| المجموعة: | General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | General Relativity and Quantum Cosmology |
| الوصف: | The mass of a black hole can dynamically evolve due to various physical processes, such as for instance accretion, Hawking radiation, absorption of gravitational/electromagnetic waves, superradiance, etc. This evolution can have an impact on astrophysical observables, like the ringdown gravitational signal. An effective description of a spherically symmetric black hole with evolving mass is provided by the Vaidya metric. In our investigation, we explore the dynamics of linear perturbations on this background, assuming a constant rate of change for the mass. Despite the time-dependent background, a judicious change of coordinates allows us to treat the perturbations in the frequency domain, and to compute explicitly the quasi-normal modes and the tidal Love numbers. Comment: 19 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.06009 |
| رقم الأكسشن: | edsarx.2407.06009 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |