How Does a Dark Compact Object Ringdown?


Elisa Maggio(Sapienza University of Rome)

Nov 30, 2020

The nature of the remnant of a compact binary coalescence can be probed with the gravitational-wave signal associated to the object’s ringdown. This is of particular interest in view of some quantum-gravity models which predict the existence of horizonless compact objects that overcome several semi-classical issues associated to black holes. Such dark compact objects can emit a modified prompt ringdown with respect to the black hole case and late-time gravitational wave echoes as characteristic fingerprints. In this talk, I develop a generic framework to the study of the ringdown of compact objects and provide a gravitational-wave template for the echo signal. I assess the detectability of dark compact objects with current and future gravitational-wave detectors. I show that LISA will place strong constraints on dark compact objects allowing for model-independent tests of the black-hole hypothesis.

Tea Talk Archives

  • 2019-2020, 2018-2019, 2017-2018, 2016-2017, 2015-2016, 2014-2015, 2012-2013, 2011-2012, 2010-2011, 2009-2010, 2008-2009, 2007-2008, 2006-2007, 2005-2006, 2004-2005, 2003-2004, 2002-2003, 2001-2002, 2000-2001, 1999-2000, 1998-1999