تقرير
Quadratic quasi-normal mode dependence on linear mode parity
| العنوان: | Quadratic quasi-normal mode dependence on linear mode parity |
|---|---|
| المؤلفون: | Bourg, Patrick, Macedo, Rodrigo Panosso, Spiers, Andrew, Leather, Benjamin, Bonga, Béatrice, Pound, Adam |
| سنة النشر: | 2024 |
| المجموعة: | General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | General Relativity and Quantum Cosmology |
| الوصف: | Quasi-normal modes (QNMs) uniquely describe the gravitational-wave ringdown of post-merger black holes. While the linear QNM regime has been extensively studied, recent work has highlighted the importance of second-perturbative-order, quadratic QNMs (QQNMs) arising from the nonlinear coupling of linear QNMs. Previous attempts to quantify the magnitude of these QQNMs have shown discrepant results. Using a new hyperboloidal framework, we resolve the discrepancy by showing that the QQNM/QNM ratio is a function not only of the black hole parameters but also of the ratio between even- and odd-parity linear QNMs: the ratio QQNM/QNM depends on what created the ringing black hole, but only through this ratio of even- to odd-parity linear perturbations. Comment: 8 pages, 1 figure |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.10270 |
| رقم الأكسشن: | edsarx.2405.10270 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |