  Low mass X-ray binaries are prime targets for continuous gravitational wave
searches by ground-based interferometers. Results are presented from a search
for five low-mass X-ray binaries whose spin frequencies and orbital elements
are measured accurately from X-ray pulsations: HETE J1900.1-2455, IGR
J00291+5934, SAX J1808.4-3658, XTE J0929-314, and XTE J1814-338. Data are
analysed from Observing Run 2 of the Advanced Laser Interferometer
Gravitational-wave Observatory (LIGO). The search algorithm uses a hidden
Markov model to track spin wandering, the $\mathcal{J}$-statistic maximum
likelihood matched filter to track orbital phase, and a suite of five vetoes to
reject artefacts from non-Gaussian noise. The search yields a number of
low-significance, above threshold candidates consistent with the selected
false-alarm probability. The candidates will be followed up in subsequent
observing runs.
