Potential Kick Velocity Distribution of Black Hole X-ray Binaries and Implications for Natal Kicks

Simple item page
aut.researcherWeston, Stuart
dc.contributor.authorAtri, Pen_NZ
dc.contributor.authorMiller-Jones, JCAen_NZ
dc.contributor.authorBahramian, Aen_NZ
dc.contributor.authorPlotkin, RMen_NZ
dc.contributor.authorJonker, PGen_NZ
dc.contributor.authorNelemans, Gen_NZ
dc.contributor.authorMaccarone, TJen_NZ
dc.contributor.authorSivakoff, GRen_NZ
dc.contributor.authorDeller, ATen_NZ
dc.contributor.authorChaty, Sen_NZ
dc.contributor.authorTorres, MAPen_NZ
dc.contributor.authorHoriuchi, Sen_NZ
dc.contributor.authorMcCallum, Jen_NZ
dc.contributor.authorNatusch, Ten_NZ
dc.contributor.authorPhillips, CJen_NZ
dc.contributor.authorStevens, Jen_NZ
dc.contributor.authorWeston, Sen_NZ
dc.date.accessioned2019-09-09T23:53:45Z
dc.date.available2019-09-09T23:53:45Z
dc.description.abstractWe use Very Long Baseline Interferometry to measure the proper motions of three black hole X-ray binaries (BHXBs). Using these results together with data from the literature and Gaia-DR2 to collate the best available constraints on proper motion, parallax, distance and systemic radial velocity of 16 BHXBs, we determined their three dimensional Galactocentric orbits. We extended this analysis to estimate the probability distribution for the potential kick velocity (PKV) a BHXB system could have received on formation. Constraining the kicks imparted to BHXBs provides insight into the birth mechanism of black holes (BHs). Kicks also have a significant effect on BH-BH merger rates, merger sites, and binary evolution, and can be responsible for spin-orbit misalignment in BH binary systems. $75\%$ of our systems have potential kicks $>70\,\rm{km~s^{-1}}$. This suggests that strong kicks and hence spin-orbit misalignment might be common among BHXBs, in agreement with the observed quasi-periodic X-ray variability in their power density spectra. We used a Bayesian hierarchical methodology to analyse the PKV distribution of the BHXB population, and suggest that a unimodal Gaussian model with a mean of $107\pm16\,\rm{km~s^{-1}}$ is a statistically favourable fit. Such relatively high PKVs would also reduce the number of BHs likely to be retained in globular clusters. We found no significant correlation between the BH mass and PKV, suggesting a lack of correlation between BH mass and the BH birth mechanism. Our Python code allows the estimation of the PKV for any system with sufficient observational constraints.en_NZ
dc.identifier.citationarXiv:1908.07199 [astro-ph.HE]
dc.identifier.urihttps://hdl.handle.net/10292/12805
dc.publisherarXiv
dc.relation.urihttps://arxiv.org/abs/1908.07199
dc.rightsarXiv places no restrictions on whether articles also appear in local institutional repositories. Authors are welcome to download copies of their own articles from arXiv in order to submit to a local repository.
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectastro-ph.HEen_NZ
dc.subjectastro-ph.HEen_NZ
dc.subjectAstrometry–proper motions–parallaxes–stars: Black hole– stars: Kinematics and dynamics–X-rays: Binaries
dc.titlePotential Kick Velocity Distribution of Black Hole X-ray Binaries and Implications for Natal Kicksen_NZ
dc.typeJournal Article
pubs.elements-id363194
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Design & Creative Technologies
pubs.organisational-data/AUT/Design & Creative Technologies/Engineering, Computer & Mathematical Sciences
pubs.organisational-data/AUT/Design & Creative Technologies/Engineering, Computer & Mathematical Sciences/ISASR
pubs.organisational-data/AUT/PBRF
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies/PBRF ECMS
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1908.07199v1.pdf
Size:
1.47 MB
Format:
Adobe Portable Document Format
Description:
Journal article
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
AUT Grant of Licence for Tuwhera Aug 2018.pdf
Size:
276.29 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
School of Engineering, Computer and Mathematical Sciences - Te Kura Mātai Pūhanga, Rorohiko, Pāngarau