Estimates of black-hole natal kick velocities from observations of low-mass X-ray binaries

Ilya Mandel

doi:10.1093/mnras/stv2733

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arXiv · 1510.03871

Estimates of black-hole natal kick velocities from observations of low-mass X-ray binaries

Ilya Mandel

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Abstract

The birth kicks of black holes, arising from asymmetric mass ejection or neutrino emission during core-collapse supernovae, are of great interest for both observationally constraining supernova models and population-synthesis studies of binary evolution. Recently, several efforts were undertaken to estimate black hole birth kicks from observations of black-hole low-mass X-ray binaries. We follow up on this work, specifically focussing on the highest estimated black-hole kick velocities. We find that existing observations do not require black hole birth kicks in excess of approximately 100 km/s, although higher kicks are not ruled out.

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Ilya Mandel. 2015-10-13. Estimates of black-hole natal kick velocities from observations of low-mass X-ray binaries. https://doi.org/10.1093/mnras%2Fstv2733

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