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Probing cosmological fields with gravitational wave oscillations
Jose Beltrán Jiménez, Jose María Ezquiaga, Lavinia Heisenberg
Gravitational wave (GW) oscillations occur whenever there are additional tensor modes interacting with the perturbations of the metric coupled to matter. These extra modes can aris…
The exponential tail of inflationary fluctuations: consequences for primordial black holes
Jose María Ezquiaga, Juan García-Bellido, Vincent Vennin
The curvature perturbations produced during an early era of inflation are known to have quasi-Gaussian distribution functions close to their maximum, where they are well constraine…
High angular resolution gravitational wave astronomy
John Baker, Tessa Baker, Carmelita Carbone +19
Since the very beginning of astronomy the location of objects on the sky has been a fundamental observational quantity that has been taken for granted. While precise two dimensiona…
The Missing Link in Gravitational-Wave Astronomy: Discoveries waiting in the decihertz range
Manuel Arca Sedda, Christopher P. L. Berry, Karan Jani +27
The gravitational-wave astronomical revolution began in 2015 with LIGO's observation of the coalescence of two stellar-mass black holes. Over the coming decades, ground-based detec…
Testing modified gravity at cosmological distances with LISA standard sirens
E. Belgacem, G. Calcagni, M. Crisostomi +18
Modifications of General Relativity leave their imprint both on the cosmic expansion history through a non-trivial dark energy equation of state, and on the evolution of cosmologic…
Electromagnetic probes of primordial black holes as dark matter
Y. Ali-Haimoud, S. Clesse, J. Garcia-Bellido +91
The LIGO discoveries have rekindled suggestions that primordial black holes (BHs) may constitute part to all of the dark matter (DM) in the Universe. Such suggestions came from 1)…