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Detectability of the subdominant mode in a binary black hole ringdown
Swetha Bhagwat, Miriam Cabero, Collin D. Capano +2
The ringdown is the late part of the post-merger signature emitted during the coalescence of two black holes and comprises of a superposition of quasi-normal-modes. Within general…
Ringdown overtones, black hole spectroscopy, and no-hair theorem tests
Swetha Bhagwat, Xisco Jimenez Forteza, Paolo Pani +1
Validating the black-hole no-hair theorem with gravitational-wave observations of compact binary coalescences provides a compelling argument that the remnant object is indeed a bla…
Analytical model for gravitational-wave echoes from spinning remnants
Elisa Maggio, Adriano Testa, Swetha Bhagwat +1
Gravitational-wave echoes in the post-merger signal of a binary coalescence are predicted in various scenarios, including near-horizon quantum structures, exotic states of matter i…
Stochastic gravitational wave background mapmaking using regularised deconvolution
Sambit Panda, Swetha Bhagwat, Jishnu Suresh +1
Obtaining a faithful source intensity distribution map of the sky from noisy data demands incorporating known information of the expected signal, especially when the signal is weak…