activity
20242026
collaborators

11 papers

astro-ph.HE2026

Environmental effects in stellar mass gravitational wave sources II: Enhanced detectability of phase shifts in eccentric sub-populations

Lorenz Zwick, Kai Hendriks, Pankaj Saini +4

We demonstrate that the properties of eccentric gravitational wave (GW) signals enhance the detectability of GW phase shifts caused by environmental effects (EEs): The signal-to-no…

astro-ph.HE2026

Spin-Orbit Misalignments of Eccentric Black Hole Mergers in AGN Disks

Gaia Fabj, Christopher Tiede, Connar Rowan +2

The disks of active galactic nuclei (AGNs) provide a natural environment where stellar-mass black holes (BHs) can dynamically pair, undergo repeated interactions, and eventually me…

gr-qc2025

Importance of relativistic pericenter precession in identifying the presence of a third body near eccentric binaries

Pankaj Saini, Lorenz Zwick, János Takátsy +5

Many astrophysical processes can produce gravitational wave (GW) sources with significant orbital eccentricity. These binaries emit bursts of gravitational radiation during each pe…

astro-ph.HE2025

Gravitational Wave Phase shifts of black hole mergers in AGN Disks

Hiromichi Tagawa, Connar Rowan, János Takátsy +4

Ground-based gravitational wave (GW) detectors have discovered about 200 compact object mergers. The astrophysical origins of these events are highly debated, and it is possible th…

astro-ph.GA2025

Gas meets Kozai: the influence of a gas-rich accretion disc on hierarchical triples undergoing von Zeipel-Lidov-Kozai oscillations

Yubo Su, Connar Rowan, Mor Rozner

Active galactic nuclei (AGNs) consist of a central supermassive black hole (SMBH) embedded in a region with both high gas and stellar densities: the gas is present as a thin accret…

astro-ph.HE2025

Environmental effects in stellar mass gravitational wave sources I: Expected fraction of signals with significant dephasing in the dynamical and AGN channels

Lorenz Zwick, János Takátsy, Pankaj Saini +5

We present the first overview of the expected quantity of signals which will showcase significant gravitational wave phase shifts caused by astrophysical environments, considering…