4 papers
Is GW231123 a hierarchical merger?
Lachlan Passenger, Sharan Banagiri, Eric Thrane +4
The binary black hole merger GW231123 is both the most massive gravitational-wave event observed and has the highest component spins measured to date. The dimensionless spins of th…
Uncovering subdominant multipole asymmetries in binary black-hole mergers
Jannik Mielke, Angela Borchers, Frank Ohme
In dynamically formed binaries, the spins of the black holes tend to be misaligned with the system's orbital angular momentum. This causes the spins to precess and leads to an asym…
Gravitational-wave kicks impact spins of black holes from hierarchical mergers
Angela Borchers, Claire S. Ye, Maya Fishbach
One proposed black hole formation channel involves hierarchical mergers, where black holes form through repeated binary mergers. Previous studies have shown that such black holes f…
Revisiting the relationship of black-hole kicks and multipole asymmetries
Jannik Mielke, Shrobana Ghosh, Angela Borchers +1
Precession in black-hole binaries is caused by a misalignment between the total spin and the orbital angular momentum. The gravitational-wave emission of such systems is anisotropi…