Binary Black Hole Mergers from Field Triples: Properties, Rates, and the Impact of Stellar Evolution
- F. Antonini, S. Toonen, A. Hamers
- Physics
- 20 March 2017
We consider the formation of binary black hole (BH) mergers through the evolution of field massive triple stars. In this scenario, favorable conditions for the inspiral of a BH binary are initiated…
Population synthesis of triple systems in the context of mergers of carbon–oxygen white dwarfs
- A. Hamers, O. Pols, J. Claeys, G. Nelemans
- Physics
- 8 January 2013
Hierarchical triple systems are common among field stars yet their long-term evolution is poorly understood theoretically. In such systems Kozai cycles can be induced in the inner binary system…
The evolution of hierarchical triple star-systems
- S. Toonen, A. Hamers, S. P. Portegies Zwart
- Physics, Geology
- 19 December 2016
Field stars are frequently formed in pairs, and many of these binaries are part of triples or even higher-order systems. Even though, the principles of single stellar evolution and binary evolution,…
Secular dynamics of hierarchical quadruple systems: the case of a triple system orbited by a fourth body
- A. Hamers, H. Perets, F. Antonini, S. Zwart
- Physics, Geology
- 9 December 2014
We study the secular gravitational dynamics of quadruple systems consisting of a hierarchical triple system orbited by a fourth body. These systems can be decomposed into three binary systems with…
The Impact of White Dwarf Natal Kicks and Stellar Flybys on the Rates of Type Ia Supernovae in Triple-star Systems
- A. Hamers, T. Thompson
- PhysicsAstrophysical Journal
- 29 April 2019
SNe Ia could arise from mergers of carbon–oxygen white dwarfs (WDs) triggered by Lidov–Kozai (LK) oscillations in hierarchical triple-star systems. However, predicted merger rates are several orders…
The Impact of Vector Resonant Relaxation on the Evolution of Binaries near a Massive Black Hole: Implications for Gravitational-wave Sources
- A. Hamers, Ben Bar-Or, C. Petrovich, F. Antonini
- PhysicsAstrophysical Journal
- 25 May 2018
Binaries within the sphere of influence of a massive black hole (MBH) in galactic nuclei are susceptible to the Lidov–Kozai (LK) mechanism, which can drive orbits to high eccentricities and trigger…
Rate of WD-WD head-on collisions in isolated triples is too low to explain standard type Ia supernovae
Context. Type Ia supernovae (Ia-SNe) are thought to arise from the thermonuclear explosions of white dwarfs (WDs). The progenitors of such explosions are still highly debated; in particular the…
A triple origin for the lack of tight coplanar circumbinary planets around short-period binaries
Transiting circumbinary planets are more easily detected around short-period than long-period binaries, but none have yet been observed by {\it Kepler} orbiting binaries with periods shorter than…
Mass transfer between debris discs during close stellar encounters
- L. J'ilkov'a, A. Hamers, M. Hammer, S. Zwart
- Physics, Geology
- 29 January 2016
We study mass transfers between debris discs during stellar encounters. We carried out numerical simulations of close flybys of two stars, one of which has a disc of planetesimals represented by test…
Hot Jupiters Driven by High-eccentricity Migration in Globular Clusters
- A. Hamers, S. Tremaine
- Geology, Physics
- 29 September 2017
Hot Jupiters (HJs) are short-period giant planets that are observed around of solar-type field stars. One possible formation scenario for HJs is high-eccentricity (high-e) migration, in which the…
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