Tidal Disruptions by Binary Black Holes in Dense Stellar Systems: Studying The Spin Magnitude and Direction of LIGO Sources
Abstract
As the era of multi-messenger astronomy is well underway there remain key mysteries as to the origin of the binary black hole (BBH) gravitational wave sources observed. The field has, in general, converged to two possible main formation channels: classical binary formation in the galactic field and dynamical assembly in dense stellar systems. The search for a promising marker of the ancestry of these BBHs has narrowed down to a few key observables, one such being the spin of the individual BH constituents and their alignment. This talk lays out the framework for how tidal disruption events (TDEs) by BBHs in dense stellar systems, such as globular clusters, can alter the expected values for the spin magnitudes and directions of LIGO BBHs. I present three unique TDE scenarios in which this process can take place and how the result of these interactions depend on each scenario.
- Publication:
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AAS/High Energy Astrophysics Division
- Pub Date:
- March 2019
- Bibcode:
- 2019HEAD...1711221L