6 papers
A dust-free hierarchically nested supermassive-star model for James Webb Space Telescope Little Red Dots
Pau Amaro Seoane
Observations by the James Webb Space Telescope reveal a population of high-redshift objects, the little red dots. These sources exhibit optical reddening alongside blue ultraviolet…
The background gas humming and multi-messenger transients of stalled supermassive black hole binaries
Pau Amaro Seoane, Alessandra Mastrobuono Battisti, Chingis Omarov +5
We establish the multi-messenger mechanics of episodic mass transfer in supermassive black hole binaries stalled within circumbinary discs. Utilizing continuous wavelet transforms,…
Fractional Dynamics in Galactic Nuclei: Non-Local Transport, Transient Phenomena and the Nullification of the Schwarzschild Barrier
Pau Amaro Seoane
We investigate the application of fractional calculus to model stellar dynamics, focusing on Resonant Relaxation (RR) near a supermassive black hole (SMBH). Standard theories use t…
Taming the plunge: A circularization trap of supermassive black hole binaries
Pau Amaro Seoane, Alessandra Mastrobuono Battisti, Chingis Omarov +5
We investigate the orbital eccentricity evolution of supermassive black hole binaries within galactic environments. We analyze the dynamics in triaxial merger remnants and subseque…
Self-consistent Solutions of Evolving Nuclear Star Clusters with Two-Dimensional Monte-Carlo Dynamical Simulations
Fupeng Zhang, Pau Amaro Seoane
We recently developed a Monte-Carlo method (GNC) that can simulate the dynamical evolution of a nuclear stellar cluster (NSC) with a massive black hole (MBH), where the two-body re…
A forest of gravitational waves in our Galactic Centre
Pau Amaro Seoane, Shao-Dong Zhao
At the Galactic Centre, we can expect a population of a few tens of early extreme-mass ratio inspirals (E-EMRIs) and extremely large mass ratio inspirals (XMRIs). Depending on thei…