Black hole spectroscopy in Einstein-Maxwell-scalar theory

Feb 22, 2024, 3:45 PM
Room 005 (SISSA)

Room 005


SISSA building Via Bonomea 265


Marco Melis (Istituto Nazionale di Fisica Nucleare)


Since the first discovery of gravitational waves resulting from a binary black hole coalescence, the study of the post-merger phase, known as ringdown, has proven to be one of the most promising tools for testing gravity and exploring fascinating extensions of general relativity. In this talk I will discuss one of these extensions, called Einstein-Maxwell-scalar theory, where a scalar field is minimally coupled to gravity and non-minimally coupled to Maxwell. In addition to the usual Reissner-Nordstrom solutions this theory also admits BH solutions with scalar hair. I will explore how black hole spectroscopy and the investigation of the quasi-normal modes of these solutions offer a valuable pathway to observe deviations from general relativity, potentially revealed through the presence of long-lived modes emerging in the final stage of the ringdown signal.

Presentation materials