Semianalytic treatment of quasinormal excitation factors in the eikonal regime
學年 113
學期 2
出版（發表）日期 2025-03-10
作品名稱 Semianalytic treatment of quasinormal excitation factors in the eikonal regime
作品名稱（其他語言）
著者 Chun-Hung Chen; Hing-Tong Cho; Anna Chrysostomou; Alan S. Cornell
單位
出版者
著錄名稱、卷期、頁數 Physical Review D 111, 064030
摘要 In this paper, we present an enhanced semianalytic method for calculating quasinormal excitation factors in the eikonal regime, specifically for Schwarzschild black holes. To achieve improved accuracy in our quasinormal mode computations, we extend the Dolan and Ottewill inverse multipolar expansion technique and incorporate higher-order corrections from the Wentzel–Kramers–Brillouin method of Iyer and Will. Our approach is carried out to a higher order than previous methods, thereby reducing the relative error, particularly for lower multipolar numbers. We validate our results by comparing them with those obtained using the Mano, Suzuki, and Takasugi method, demonstrating excellent agreement. A key advantage of our method is its ability to extract quasinormal excitation factors, which are crucial for accurately modeling gravitational wave signals from binary black hole mergers. This advancement provides a useful tool for future gravitational wave studies, enabling better quantification of quasinormal mode excitations and more precise identification of individual modes during black hole ringdowns.
關鍵字
語言 en_US
ISSN 2470-0029; 2470-0010
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 USA
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/129405 )