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23 papers · 2 filters
Low significance of evidence for black hole echoes in gravitational wave data
Julian Westerweck, Alex B. Nielsen, Ofek Fischer-Birnholtz +6
Recent detections of merging black holes allow observational tests of the nature of these objects. In some proposed models, non-trivial structure at or near the black hole horizon…
Parameterized tests of the strong-field dynamics of general relativity using gravitational wave signals from coalescing binary black holes: Fast likelihood calculations and sensitivity of the method
Jeroen Meidam, Ka Wa Tsang, Janna Goldstein +15
Thanks to the recent discoveries of gravitational wave signals from binary black hole mergers by Advanced Laser Interferometer Gravitational Wave Observatory and Advanced Virgo, th…
Constraints on cosmic strings using data from the first Advanced LIGO observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1042
Cosmic strings are topological defects which can be formed in GUT-scale phase transitions in the early universe. They are also predicted to form in the context of string theory. Th…
The optimal search for an astrophysical gravitational-wave background
Rory Smith, Eric Thrane
Roughly every 2-10 minutes, a pair of stellar mass black holes merge somewhere in the Universe. A small fraction of these mergers are detected as individually resolvable gravitatio…
All-sky search for long-duration gravitational wave transients in the first Advanced LIGO observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +990
We present the results of a search for long-duration gravitational wave transients in the data of the LIGO Hanford and LIGO Livingston second generation detectors between September…
Cosmological Newtonian limits on large spacetime scales
Chao Liu, Todd A. Oliynyk
We establish the existence of -parameter families of -dependent solutions to the Einstein-Euler equations with a positive cosmological constant and a linear equation of…