Particle physics today faces the challenge of explaining the mystery of dark matter, the origin
of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent …

Now that detection of gravitational-wave signals from the coalescence of extra-galactic
compact binary star mergers has become nearly routine, it is intriguing to consider other …

Abstract The Einstein Telescope (ET), the European project for a third-generation
gravitational-wave detector, has a reference configuration based on a triangular shape …

We present results of an all-sky search for continuous gravitational waves which can be
produced by spinning neutron stars with an asymmetry around their rotation axis, using data …

We present a directed search for continuous gravitational wave (CW) signals emitted by
spinning neutron stars located in the inner parsecs of the Galactic Center (GC). Compelling …

The idea of stable, localized bundles of energy has strong appeal as a model for particles. In
the 1950s, John Wheeler envisioned such bundles as smooth configurations of …

Early dark energy (EDE) offers a solution to the so-called Hubble tension. Recently, it was
shown that the constraints on EDE using Markov Chain Monte Carlo are affected by prior …

Seven years after the first direct detection of gravitational waves, from the collision of two
black holes, the field of gravitational wave astronomy is firmly established. A first detection of …

We study the electrodynamics of a kinetically mixed dark photon cloud that forms through
superradiance around a spinning black hole, and design strategies to search for the …

The linear-and quadratic-in-spin contributions to the binding potential and gravitational-
wave flux from binary systems are derived to next-to-next-to-leading order in the post …