16 papers
Parameter Estimation on LIGO-Virgo-KAGRA O4a Binary Merger Triggers with Sub-solar Mass Components
Nelson Christensen, Nelson Christensen. Neil Cornish, Neil Cornish +3
The LIGO-Virgo-KAGRA collaboration has reported the results for searches for sub-solar mass components in compact binary coalescence during observing run O4a. No detection candidat…
A battle of designs: triangular vs. L-shaped detectors and parity violation in the gravitational-wave background
Hannah Duval, Charles Badger, Mairi Sakellariadou +1
We investigate the prospects for detecting a parity-violating gravitational-wave background (GWB) with third-generation ground-based detector networks. We focus on a network consis…
Orientation matters: Consequences for gravitational-wave background detectability
Nelson Christensen, Joseph D. Romano, Mairi Sakellariadou +1
Cross-correlation searches for gravitational-wave backgrounds depend on the geometrical configuration (physical separation and relative orientation) of the detectors comprising the…
A bigravity model from noncommutative geometry
Marco de Cesare, Mairi Sakellariadou, Araceli Soler Oficial
Noncommutative gravity, based on a twist-deformation of the differential geometry of spacetime and a first-order formulation of the dynamics, requires additional gravitational degr…
Popcorn in the sky: Identifying primordial black holes in the gravitational-wave background
Eleni Bagui, Sébastien Clesse, Federico De Lillo +2
Primordial black holes (PBHs) are possible sources of a gravitational-wave background (GWB), detectable with the next observing runs of LIGO--Virgo--KAGRA. In case of a detection,…
Probing Cosmic Expansion and Early Universe with Einstein Telescope
Angelo Ricciardone, Mairi Sakellariadou, Archisman Ghosh +52
Over the next two decades, gravitational-wave (GW) observations are expected to evolve from a discovery-driven endeavour into a precision tool for astrophysics, cosmology, and fund…