Paper published by B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration) in Physical Review D.
Full band all-sky search for periodic gravitational waves in the O1 LIGO data
We report on a new all-sky search for periodic gravitational waves in the frequency band 475–2000 Hz and with a frequency time derivative in the range of [−1.0,+0.1]×10−8 Hz/s. Potential signals could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our Galaxy. This search uses the data from Advanced LIGO’s first observational run O1. No gravitational-wave signals were observed, and upper limits were placed on their strengths. For completeness, results from the separately published low-frequency search 20–475 Hz are included as well. Our lowest upper limit on worst-case (linearly polarized) strain amplitude h0 is ∼4×10−25 near 170 Hz, while at the high end of our frequency range, we achieve a worst-case upper limit of 1.3×10−24. For a circularly polarized source (most favorable orientation), the smallest upper limit obtained is ∼1.5×10−25.
Figure 1 from the paper. O1 upper limits.
Paper link available below at citation information
Citation:
B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration)
Full band all-sky search for periodic gravitational waves in the O1 LIGO data
Phys. Rev. D 97, 102003
DOI: 10.1103/PhysRevD.97.102003
Published data: 11/05/2018