We study the quasi-normal modes of asymptotically anti-de Sitter black holes in a class of shift-symmetric Horndeski theories where a gravitational scalar is derivatively coupled to the Einstein tensor. The space-time differs from exact Schwarzschild-anti-de Sitter, resulting in a different effective potential for the quasi-normal modes and a different spectrum. We numerically compute this spectrum for a massless test scalar coupled both minimally to the metric, and non-minimally to the gravitational scalar. We find interesting differences from the Schwarzschild-anti-de Sitter black hole found in general relativity.
Axial quasinormal modes of static neutron stars in the nonminimal derivative coupling sector of Horndeski gravity: spectrum and universal relations for realistic equations of state
A positive period derivative in the quasi-periodic eruptions of ZTF19acnskyy
Massachusetts Institute of Technology(麻省理工学院);Black Hole Initiative at Harvard University(哈佛大学黑洞倡议);Columbia University(哥伦比亚大学);New York University(纽约大学);Centro de Astrobiología (CAB), CSIC-INTA(西班牙国家航空航天技术研究所与西班牙国家科学研究委员会天体生物学中心);Universidad Adolfo Ibáñez(阿道夫·伊巴涅斯大学);Millennium Nucleus on Transversal Research and Technology to Explore Supermassive Black Holes (TITANS)(探索超大质量黑洞跨学科研究与技术千年核);Instituto de Estudios Astrofísicos(天体物理研究所)