Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 456, Issue 1, Pages 578-581Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stv2733
Keywords
binaries: close; stars: black holes; Galaxy: kinematics and dynamics; X-rays: binaries
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Funding
- Science and Technology Facilities Council [ST/K000845/1] Funding Source: researchfish
- STFC [ST/I006269/1, ST/N000633/1, ST/K000845/1] Funding Source: UKRI
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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 focusing on the highest estimated black hole kick velocities. We find that existing observations do not require black hole birth kicks in excess of approximately 80 km s(-1), although higher kicks are not ruled out.
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