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 $[\ensuremath{-}1.0,+0.1]\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}8}\text{ }\mathrm{Hz}/\mathrm{s}$. 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 ${h}_{0}$ is $\ensuremath{\sim}4\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}25}$ near 170 Hz, while at the high end of our frequency range, we achieve a worst-case upper limit of $1.3\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}24}$. For a circularly polarized source (most favorable orientation), the smallest upper limit obtained is $\ensuremath{\sim}1.5\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}25}$.

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