An accreting stellar binary model for active periodic fast radio bursts

Abstract

In this work, we propose an accreting stellar binary model for understanding the active periodic fast radio bursts (FRBs). The system consists of a stellar compact object (CO) and a donor star (DS) companion in an eccentric orbit, where the DS fills its own Roche lobe near the periastron. The CO accretes the material from the DS and then drive relativistic magnetic blobs. The interaction between the magnetic blobs and the stellar wind of the DS produces a pair of shocks. We find that both of the reverse shock and the forward shock are likely to produce FRBs via synchrotron maser mechanism. We show that this system can in principle sufficiently produce highly active FRBs with a long lifetime, and also can naturally explain the periodicity and the duty cycle of the activity as appeared in FRBs 180916 and 121102. The radio nebula excited by the long-term injection of magnetic blobs into the surrounding environment may account for the associated persistent radio source. In addiction, we discuss the possible multi-wavelength counterparts of FRB 180916 in the context of this model. Finally, we encourage the search for FRBs in the ultraluminous X-ray sources.

11 pages, 2 figures; accepted to APJ

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Cited by in corpus (7)

• A Highly Variable Magnetized Environment in a Pulsar Binary resembling Fast Radio Bursts
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• Earth-mass primordial black hole mergers as sources for non-repeating FRBs
• Are there magnetars in high-mass X-ray binaries?
• Do the periodic activities of repeating fast radio bursts represent the spins of neutron stars?
• Optical Transients from Fast Radio Bursts Heating Companion Stars in Close Binary Systems
• Energy and waiting time distributions of FRB 121102 observed by FAST