activity
20242026
collaborators

10 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

Large Gravitational Wave Phase Shifts from Strong 3-body Interactions in Dense Stellar Clusters

Kai Hendriks, Dany Atallah, Miguel Martinez +7

The phase evolution of gravitational waves (GWs) can be modulated by the astrophysical environment surrounding the source, which provides a probe for the origin of individual binar…

astro-ph.HE2026

Towards gravitational wave parameter inference for binaries with an eccentric companion

Kai Hendriks, Lorenz Zwick, Pankaj Saini +2

We introduce a complete model for dephasing due to line-of-sight acceleration (LOSA) in gravitational wave (GW) signals from stellar-mass binary black holes (BBHs) in three-body sy…

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.HE2025

The construction and use of dephasing prescriptions for environmental effects in gravitational wave astronomy

János Takátsy, Lorenz Zwick, Kai Hendriks +3

In the first part of this work, we provide a curated overview of the theoretical framework necessary for incorporating dephasing due to environmental effects (EE) in gravitational…