0000000000871315

AUTHOR

Kyriakos Destounis

showing 3 related works from this author

Pseudospectrum of Reissner-Nordström black holes: Quasinormal mode instability and universality

2021

Black hole spectroscopy is a powerful tool to probe the Kerr nature of astrophysical compact objects and their environment. The observation of multiple ringdown modes in gravitational waveforms could soon lead to high-precision gravitational spectroscopy, so it is critical to understand if the quasinormal mode spectrum is stable against perturbations. It was recently shown that the pseudospectrum can shed light on the spectral stability of black hole quasinormal modes. We study the pseudospectrum of Reissner-Nordstr\"om spacetimes and we find a spectral instability of scalar and gravitoelectric quasinormal modes in subextremal and extremal black holes, extending similar findings for the Sch…

star: compactspace-time: Schwarzschildblack hole: Reissner-NordstroemScalar (mathematics)[PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph]01 natural sciencesGeneral Relativity and Quantum CosmologyGravitationGeneral Relativity and Quantum Cosmology0103 physical sciencesQuasinormal mode010306 general physicsperturbation: gravitationMathematical PhysicsMathematical physicsPseudospectrumPhysicsSpacetime010308 nuclear & particles physicsHorizonquasinormal modegravitational radiationblack hole: stabilityMathematics::Spectral Theorystabilityblack hole: quasinormal modequasinormal mode: spectrumBlack holeperturbation: scalarwave: model[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Schwarzschild radius
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New horizons for fundamental physics with LISA

2022

K. G. Arun et al.

AstrofísicaPROTOPLANET MIGRATIONFísica-Modelos matemáticosPhysics and Astronomy (miscellaneous)gr-qcFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)GRAVITATIONAL-WAVEShorizonFundamental physicGeneral Relativity and Quantum CosmologyPhysics Particles & FieldsGravitational wavesLIGO (Observatory)Tests of general relativitySettore FIS/05 - Astronomia e AstrofisicaDARK-MATTERFísica matemáticaKOZAI MECHANISMHigh Energy PhysicsGENERAL-RELATIVITYFundamental physics; Gravitational waves; LISA; Tests of general relativityFundamental physicsPRIMORDIAL BLACK-HOLESLISAScience & TechnologyGeneral Relativity and Cosmology83CXXPhysicsgravitation: interactiongravitational radiationFísicaCompactQUANTUM-GRAVITYPhysical SciencesAstronomia[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]fundamental physics; gravitational waves; LISA; test of general relativityMODIFIED GRAVITYtest of general relativityGravitational waveMULTIPOLE MOMENTSHUBBLE CONSTANT
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Astrophysics with the Laser Interferometer Space Antenna

2023

Full list of authors: Amaro-Seoane, Pau; Andrews, Jeff; Sedda, Manuel Arca; Askar, Abbas.; Baghi, Quentin; Balasov, Razvan; Bartos, Imre; Bavera, Simone S.; Bellovary, Jillian; Berry, Christopher P. L.; Berti, Emanuele; Bianchi, Stefano; Blecha, Laura; Blondin, Stephane; Bogdanovic, Tamara; Boissier, Samuel; Bonetti, Matteo; Bonoli, Silvia; Bortolas, Elisa; Breivik, Katelyn; Capelo, Pedro R.; Caramete, Laurentiu; Cattorini, Federico; Charisi, Maria; Chaty, Sylvain; Chen, Xian; Chruslinska, Martyna; Chua, Alvin J. K.; Church, Ross; Colpi, Monica; D'Orazio, Daniel; Danielski, Camilla; Davies, Melvyn B.; Dayal, Pratika; De Rosa, Alessandra; Derdzinski, Andrea; Destounis, Kyriakos; Dotti, Massi…

AstrofísicaACTIVE GALACTIC NUCLEICosmology and Nongalactic Astrophysics (astro-ph.CO)Physics and Astronomy (miscellaneous)Black holeAstronomyStellar remnantFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)TIDAL DISRUPTION EVENTSGeneral Relativity and Quantum CosmologyGravitational wavesMOCCA-SURVEY DATABASESettore FIS/05 - Astronomia e AstrofisicaStellar remnantsSoftware ScienceMulti-messengerGRAVITATIONAL-WAVE SOURCESInstrumentation and Methods for Astrophysics (astro-ph.IM)Extreme mass ratio in-spiralsSolar and Stellar Astrophysics (astro-ph.SR)High Energy Astrophysical Phenomena (astro-ph.HE)Black holes; Extreme mass ratio in-spirals; Gravitational waves; Multi-messenger; Stellar remnantsBlack holesData ScienceAstrophysics::Instrumentation and Methods for AstrophysicsExtreme mass ratio in-spiralAM-CVN STARSAstrophysics - Astrophysics of GalaxiesWHITE-DWARF BINARIESDOUBLE NEUTRON-STARSAstrophysics - Solar and Stellar Astrophysics[SDU]Sciences of the Universe [physics]Astrophysics of Galaxies (astro-ph.GA)AstronomiaMASSIVE BLACK-HOLEAstrophysics - High Energy Astrophysical PhenomenaAstrophysics - Instrumentation and Methods for AstrophysicsX-RAY BINARIESCOMMON-ENVELOPE EVOLUTIONGravitational waveAstrophysics - Cosmology and Nongalactic Astrophysics
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