2020
DOI: 10.48550/arxiv.2008.06506
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Black widow formation by pulsar irradiation and sustained magnetic braking

Sivan Ginzburg,
Eliot Quataert

Abstract: Black widows are millisecond pulsars with low-mass companions, a few per cent the mass of the sun, on orbits of several hours. These companions are presumably the remnants of main sequence stars that lost their mass through a combination of Roche-lobe overflow and ablation by the host pulsar's high-energy radiation. While ablation itself is too weak to significantly reduce the mass of the companion star, the ablated wind couples to its magnetic field, removes orbital angular momentum, and thus maintains stable… Show more

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