Full band all-sky search for periodic gravitational waves in the O1 LIGO data

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]×108  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 4×1025 near 170 Hz, while at the high end of our frequency range, we achieve a worst-case upper limit of 1.3×1024. For a circularly polarized source (most favorable orientation), the smallest upper limit obtained is 1.5×1025.

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