Clumpy jets from black hole–massive star binaries as engines of fast radio bursts

摘要

We propose a new model of fast radio bursts (FRBs) based on stellar-mass black hole–massive star binaries. We argue that the inhomogeneity of the circumstellar materials or/and the time varying wind activities of the stellar companion will cause the black hole to accrete at a transient super-Eddington rate. The collision among the clumpy ejecta in the resulted jet could trigger plasma instability. As a result, the plasma in the jet will emit coherent curvature radiation. When the jet cone aims toward the observer, the apparent luminosity can be