First searches for gravitational waves from r-modes of the Crab pulsar

Understand

We present the first searches for gravitational waves from r-modes of the Crab pulsar, coherently and separately integrating data from three stretches of the first two observing runs of Advanced LIGO using the F-statistic.

• The second run was divided in two by a glitch of the pulsar roughly halfway through.
• The frequencies and derivatives searched were based on radio measurements of the pulsar's spin-down parameters as described in Caride et al., Phys.
• Rev.