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Do asteroids evaporate near pulsars? Induction heating by pulsar waves revisited

机译：小行星是否在脉冲星附近蒸发？再谈脉冲星感应加热

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Aims. We investigate the evaporation of close-by pulsar companions, such as planets, asteroids, and white dwarfs, by induction heating. Methods. Assuming that the outflow energy is dominated by a Poynting flux (or pulsar wave) at the location of the companions, we calculate their evaporation timescales, by applying the Mie theory. Results. Depending on the size of the companion compared to the incident electromagnetic wavelength, the heating regime varies and can lead to a total evaporation of the companion. In particular, we find that inductive heating is mostly inefficient for small pulsar companions, although it is generally considered the dominant process. Conclusions. Small objects like asteroids can survive induction heating for 10~(4) yr at distances as small as 1 R _(⊙) from the neutron star. For degenerate companions, induction heating cannot lead to evaporation and another source of heating (likely by kinetic energy of the pulsar wind) has to be considered. It was recently proposed that bodies orbiting pulsars are the cause of fast radio bursts; the present results explain how those bodies can survive in the pulsar’s highly energetic environment.
机译：目的我们研究感应加热对附近脉冲星伴星（例如行星，小行星和白矮星）的蒸发。方法。假设在同伴的位置流出能量主要由珀因廷通量（或脉冲星波）控制，我们通过应用米氏理论计算它们的蒸发时间尺度。结果。根据同伴的大小与入射电磁波长的比较，加热方式会有所不同，并可能导致同伴的完全蒸发。特别是，我们发现感应加热对于小型脉冲星伴星来说效率最高，尽管通常认为它是主要过程。结论。像小行星这样的小物体，在距中子星只有1 R _（⊙）的距离内，可以经受感应加热10〜（4）年。对于退化的伴星，感应加热不能导致蒸发，因此必须考虑另一种加热源（可能是脉冲星风的动能）。最近有人提出，绕脉冲星运行的物体是造成无线电快速爆炸的原因。目前的结果说明了这些物体如何在脉冲星的高能环境中生存。

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