Tag / Author Three

Mass-gap Black Holes in Coalescing Neutron Star Black Hole Binaries Authors: Xing, Zepei ; Kalogera, Vicky ; Fragos, Tassos ; Andrews, Jeff J. ; Bavera, Simone S. ; Briel, Max ; Gossage, Seth ; Kovlakas, Konstantinos ; Kruckow, Matthias U. ; Rocha, Kyle A. ; Sun, Meng ; Srivastava, Philipp M. ; Zapartas, Emmanouil. Abstract:…

Combining underground and on-surface third-generation gravitational-wave interferometers Authors: Iacovelli, Francesco ; Belgacem, Enis ; Maggiore, Michele ; Mancarella, Michele ; Muttoni, Niccolò. Abstract: Recently, detailed studies have been made to compare the performance of the European next generation GW observatory Einstein Telescope (ET) in a single-site triangular configuration with the performance of a configuration featuring…

The Formation of Black Holes in Non-interacting, Isolated Binaries. Gaia Black Holes as Calibrators of Stellar Winds From Massive Stars Authors: Kruckow, Matthias U. ; Andrews, Jeff J. ; Fragos, Tassos ; Holl, Berry ; Bavera, Simone S. ; Briel, Max ; Gossage, Seth ; Kovlakas, Konstantinos ; Rocha, Kyle A. ; Sun, Meng ;…

The effect of mass loss in models of red supergiants in the Small Magellanic Cloud Authors: Zapartas, E. ; de Wit, S. ; Antoniadis, K. ; Muñoz-Sanchez, G. ; Souropanis, D. ; Bonanos, A. Z. ; Maravelias, G. ; Kovlakas, K. ; Kruckow, M. U. ; Fragos, T. ; Andrews, J. J. ; Bavera, S.…

Classifying binary black holes from Population III stars with the Einstein Telescope: A machine-learning approach Authors: Santoliquido, Filippo ; Dupletsa, Ulyana ; Tissino, Jacopo ; Branchesi, Marica ; Iacovelli, Francesco ; Iorio, Giuliano ; Mapelli, Michela ; Gerosa, Davide ; Harms, Jan ; Pasquato, Mario. Abstract: Third-generation (3G) gravitational-wave detectors such as the Einstein Telescope…

How well do we know the primordial black hole abundance: The crucial role of nonlinearities when approaching the horizon Authors: De Luca, Valerio ; Kehagias, Alex ; Riotto, Antonio. Abstract: We discuss the nonlinear corrections entering in the calculation of the primordial black hole abundance from the nonlinear radiation transfer function and the determination of…

Quasinormal modes and universality of the Penrose limit of black hole photon rings Authors: Giataganas, D. ; Kehagias, A. ; Riotto, A. Abstract: We study the physics of photon rings in a wide range of axisymmetric black holes admitting a separable Hamilton-Jacobi equation for the geodesics. Utilizing the Killing-Yano tensor, we derive the Penrose limit…

Mixed scalarization of charged black holes: From spontaneous to nonlinear scalarization Authors: Belkhadria, Zakaria ; Pombo, Alexandre M. Abstract: Scalarized black holes (BH) have been shown to form dynamically in extended-scalar-tensor theories, either through spontaneous scalarization—when the BH is unstable against linear perturbations—or through a nonlinear scalarization. In the latter, linearly stable BHs can ignite…

To Be or Not To Be: The Role of Rotation in Modeling Galactic Be X-Ray Binaries Authors: Rocha, Kyle Akira ; Kalogera, Vicky ; Doctor, Zoheyr ; Andrews, Jeff J. ; Sun, Meng ; Gossage, Seth ; Bavera, Simone S. ; Fragos, Tassos ; Kovlakas, Konstantinos ; Kruckow, Matthias U. ; Misra, Devina ; Srivastava,…

Coupling elastic media to gravitational waves: an effective field theory approach Authors: Belgacem, Enis ; Maggiore, Michele ; Moreau, Thomas. Abstract: The interaction of a gravitational wave (GW) with an elastic body is usually described in terms of a GW "force" driving the oscillations of the body's normal modes. However, this description is only possible…