Results of an allsky highfrequency Einstein@Home search for continuous gravitational waves in LIGO's fifth science run
Abstract
We present results of a highfrequency allsky search for continuous gravitational waves from isolated compact objects in LIGO's fifth science run (S5) data, using the computing power of the Einstein@Home volunteer computing project. This is the only dedicated continuous gravitational wave search that probes this highfrequency range on S5 data. We find no significant candidate signal, so we set 90% confidence level upper limits on continuous gravitational wave strain amplitudes. At the lower end of the search frequency range, around 1250 Hz, the most constraining upper limit is 5.0 ×10^{24}, while at the higher end, around 1500 Hz, it is 6.2 ×10^{24}. Based on these upper limits, and assuming a fiducial value of the principal moment of inertia of 10^{38} kg m^{2} , we can exclude objects with ellipticities higher than roughly 2.8 ×10^{7} within 100 pc of Earth with rotation periods between 1.3 and 1.6 milliseconds.
 Publication:

Physical Review D
 Pub Date:
 September 2016
 DOI:
 10.1103/PhysRevD.94.064061
 arXiv:
 arXiv:1607.00745
 Bibcode:
 2016PhRvD..94f4061S
 Keywords:

 General Relativity and Quantum Cosmology;
 Astrophysics  High Energy Astrophysical Phenomena;
 Astrophysics  Instrumentation and Methods for Astrophysics
 EPrint:
 13 pages, 10 figures, 5 tables