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36 papers · 2 filters
Planck-scale-modified dispersion relations in homogeneous and isotropic spacetimes
Leonardo Barcaroli, Lukas K. Brunkhorst, Giulia Gubitosi +2
The covariant understanding of dispersion relations as level sets of Hamilton functions on phase space enables us to derive the most general dispersion relation compatible with hom…
Geodesics and the magnitude-redshift relation on cosmologically symmetric Finsler spacetimes
Manuel Hohmann, Christian Pfeifer
We discuss the geodesic motion of both massive test particles, following timelike geodesics, and light, following null geodesics, on Finsler spacetimes with cosmological symmetry.…
Instanton Tunneling for De Sitter Space with Real Projective Spatial Sections
Yen Chin Ong, Dong-han Yeom
The physics of tunneling from one spacetime into another is often understood in terms of instantons. For some instantons, it was recently shown in the literature that there are two…
A stochastic template bank for gravitational wave searches for precessing neutron-star--black-hole coalescence events
Nathaniel Indik, K Haris, Tito Dal Canton +5
Gravitational wave searches to date have largely focused on non-precessing systems. Including precession effects greatly increases the number of templates to be searched over. This…
Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO's First Observing Run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +992
A wide variety of astrophysical and cosmological sources are expected to contribute to a stochastic gravitational-wave background. Following the observations of GW150914 and GW1512…
All-sky search for short gravitational-wave bursts in the first Advanced LIGO run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +986
We present the results from an all-sky search for short-duration gravitational waves in the data of the first run of the Advanced LIGO detectors between September 2015 and January…