An accreting stellar binary model for active periodic fast radio bursts. (arXiv:2102.06796v2 [astro-ph.HE] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Deng_C/0/1/0/all/0/1">Can-Min Deng</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhong_S/0/1/0/all/0/1">Shu-Qing Zhong</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dai_Z/0/1/0/all/0/1">Zi-Gao Dai</a>

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.

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.

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