Date:

04/09/2010 - 12:30pm to 1:30pm

Speaker:

Michael Kesden

Speaker affiliation:

Caltech

Location:

08-2154

After prodigious work over several decades, binary black hole mergers can now be simulated in fully nonlinear numerical relativity. However, these simulations are still restricted to mass ratios q = m2/m1 > 1/10, initial spins a/M < 0.9, and initial separations r/M < 10. Fortunately, analytical techniques like black-hole perturbation theory and the post-Newtonian approximation allow us to study much of this region in parameter space that remains inaccessible to numerical relativity. I will use black-hole perturbation theory to establish a fundamental upper limit to the final spin that can be attained through binary mergers, and show how this limit can be used to improve predictions of final spins for finite mass ratios as well. I will also show that post-Newtonian inspirals between 1000 M < r < 10 M can align or anti-align black hole spins with each other, dramatically changing the distributions of final spins and recoil velocities that would be expected in astrophysical black hole mergers.

Home | Links | Credits | Search | Terms of Use | Disclaimer | My Account

Rochester Institute of Technology,

One Lomb Memorial Drive, Rochester, New York 14623, USA

Phone: (585) 475-7752

Fax: (585) 475-7340

Education - This is a contributing Drupal Theme

Design by WeebPal.

Design by WeebPal.