The formation of the black hole in the X-ray binary system V404 Cyg
Using new and archival radio data, we have measured the proper motion of the black hole X-ray binary V404 Cyg to be 9.2 ± 0.3 mas yr-1. Combined with the systemic radial velocity from the literature, we derive the full three-dimensional heliocentric space velocity of the system, which we use to calc...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
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Wiley-Blackwell Publishing Ltd.
2009
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| Online Access: | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2009.14404.x/full http://hdl.handle.net/20.500.11937/3291 |
| _version_ | 1848744191329304576 |
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| author | Miller-Jones, James Jonker, P. Nelemans, G. Portegies Zwart, S. Dhawan, V. Brisken, W. Gallo, E. Rupen, M. |
| author_facet | Miller-Jones, James Jonker, P. Nelemans, G. Portegies Zwart, S. Dhawan, V. Brisken, W. Gallo, E. Rupen, M. |
| author_sort | Miller-Jones, James |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Using new and archival radio data, we have measured the proper motion of the black hole X-ray binary V404 Cyg to be 9.2 ± 0.3 mas yr-1. Combined with the systemic radial velocity from the literature, we derive the full three-dimensional heliocentric space velocity of the system, which we use to calculate a peculiar velocity in the range 47–102 km s-1, with a best-fitting value of 64 km s-1. We consider possible explanations for the observed peculiar velocity and find that the black hole cannot have formed via direct collapse. A natal supernova is required, in which either significant mass (~11 M?) was lost, giving rise to a symmetric Blaauw kick of up to ~65 km s-1, or, more probably, asymmetries in the supernova led to an additional kick out of the orbital plane of the binary system. In the case of a purely symmetric kick, the black hole must have been formed with a mass ~9 M?, since when it has accreted 0.5–1.5 M? from its companion. |
| first_indexed | 2025-11-14T05:57:32Z |
| format | Journal Article |
| id | curtin-20.500.11937-3291 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:57:32Z |
| publishDate | 2009 |
| publisher | Wiley-Blackwell Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-32912019-02-19T04:27:23Z The formation of the black hole in the X-ray binary system V404 Cyg Miller-Jones, James Jonker, P. Nelemans, G. Portegies Zwart, S. Dhawan, V. Brisken, W. Gallo, E. Rupen, M. stars: kinematics astrometry stars: supernovae: general stars: individual: V404 Cyg radio continuum: stars X-rays: binaries Using new and archival radio data, we have measured the proper motion of the black hole X-ray binary V404 Cyg to be 9.2 ± 0.3 mas yr-1. Combined with the systemic radial velocity from the literature, we derive the full three-dimensional heliocentric space velocity of the system, which we use to calculate a peculiar velocity in the range 47–102 km s-1, with a best-fitting value of 64 km s-1. We consider possible explanations for the observed peculiar velocity and find that the black hole cannot have formed via direct collapse. A natal supernova is required, in which either significant mass (~11 M?) was lost, giving rise to a symmetric Blaauw kick of up to ~65 km s-1, or, more probably, asymmetries in the supernova led to an additional kick out of the orbital plane of the binary system. In the case of a purely symmetric kick, the black hole must have been formed with a mass ~9 M?, since when it has accreted 0.5–1.5 M? from its companion. 2009 Journal Article http://hdl.handle.net/20.500.11937/3291 http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2009.14404.x/full Wiley-Blackwell Publishing Ltd. restricted |
| spellingShingle | stars: kinematics astrometry stars: supernovae: general stars: individual: V404 Cyg radio continuum: stars X-rays: binaries Miller-Jones, James Jonker, P. Nelemans, G. Portegies Zwart, S. Dhawan, V. Brisken, W. Gallo, E. Rupen, M. The formation of the black hole in the X-ray binary system V404 Cyg |
| title | The formation of the black hole in the X-ray binary system V404 Cyg |
| title_full | The formation of the black hole in the X-ray binary system V404 Cyg |
| title_fullStr | The formation of the black hole in the X-ray binary system V404 Cyg |
| title_full_unstemmed | The formation of the black hole in the X-ray binary system V404 Cyg |
| title_short | The formation of the black hole in the X-ray binary system V404 Cyg |
| title_sort | formation of the black hole in the x-ray binary system v404 cyg |
| topic | stars: kinematics astrometry stars: supernovae: general stars: individual: V404 Cyg radio continuum: stars X-rays: binaries |
| url | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2009.14404.x/full http://hdl.handle.net/20.500.11937/3291 |